Project Supra Killer

[BoostFab]

just linking some upgrade build up that may help him on the way

[bigtom]

get there cheap!! RB30DET baby! definite supra killer.

http://www.nissaninfiniticlub....76223

i can help you with some other "magic" things for good prices to get you to your destiny. heck i ran a 12.8 in my N/A SR20.

email me if you are serious : [email protected]

[xe0]

just linking some upgrade build up that may help him on the way

Thanks for the links, those are some impressive skylines. I do realize that the rb26 is a very powerful and potential engine and I have all the respect in the world for it, but if I was going to upgrade everything like he did, it would be more cost effective to do the 25 or even the 30.

Now that I have read more about the rb30. With the helpful suggestions of users on this forum, If I can track down someone around me that can tune this bad boy, I may actually consider it instead of the 25. I just am wary of anything that is as undocumented as that engine hybrid is.

Thanks, Adam

[accel junky]

I don't see your point boostsfed. I don't think anything left in Mario's RB26 is still stock. There's going to be a point where one doesn't have a huge advantage over the other.There is a 900HP stock block RB25 in Florida .I doubt it cost 1/10th of Mario's build up.

Got any more info on that 900hp stock block RB25? Haven't heard of that yet. :ylsuper

[eh?]

Got any more info on that 900hp stock block RB25? Haven't heard of that yet. :ylsuper

Stock block meaning unsleaved, etc.. The name of the shop was street legal imports. Their website is gone.Here's a vid of the car, I think this was a 600rwhp runhttp://www.rb25det.org/RB/MOV00452.aviIt looked like a NEO rb25, head work, internals.Oil pump broke at ~9000rpm. Here's an email from the owner:Hi there fellow rb-25 man, That manifold was a one off custom job its made with 321 stainless steel and cost with all 13 bends and the two flanges $1600 TO MAKE. I am selling everything on that side of the engine--GT T76 PRECISION TURBO, manifold, teal waste gate, down pipe and full exhaust system. price for everything is $4000. and we made 900hp with this combo let me know if you are interested.. Jeff 954-599-9622I do not doubt this, they are/were well know in south florida.

[eh?]

Got any more info on that 900hp stock block RB25? Haven't heard of that yet. :ylsuper

Stock block meaning unsleaved, etc.. The name of the shop was street legal imports. Their website is gone.Here's a vid of the car, I think this was a 600rwhp runhttp://www.rb25det.org/RB/MOV00452.aviIt looked like a NEO rb25, head work, internals.Oil pump broke at ~9000rpm. Here's an email from the owner:Hi there fellow rb-25 man, That manifold was a one off custom job its made with 321 stainless steel and cost with all 13 bends and the two flanges $1600 TO MAKE. I am selling everything on that side of the engine--GT T76 PRECISION TURBO, manifold, teal waste gate, down pipe and full exhaust system. price for everything is $4000. and we made 900hp with this combo let me know if you are interested.. Jeff 954-599-9622I do not doubt this, they are/were well know in south florida.

[accel junky]

Eh, that video doesn't work, got it anywhere else? I want to see it real bad!

[93RPS13]

Thanks for the links, those are some impressive skylines. I do realize that the rb26 is a very powerful and potential engine and I have all the respect in the world for it, but if I was going to upgrade everything like he did, it would be more cost effective to do the 25 or even the 30.

Now that I have read more about the rb30. With the helpful suggestions of users on this forum, If I can track down someone around me that can tune this bad boy, I may actually consider it instead of the 25. I just am wary of anything that is as undocumented as that engine hybrid is.

Thanks, Adam

RB30DET documented http://www.geocities.com/r32_jjc/

[xe0]

RB30DET documented http://www.geocities.com/r32_jjc/

Thanks for the link, I already found that, from your previous skylines down under forum link. I am pretty convinced that using the rb30 would get me to my goal quicker and cheaper, I am currently exploring that option through dragdriftautox. I will post back when I have more information/pictures of parts I have received/my 240.

Thanks, Adam

[93RPS13]

please realize that the RB30 sit higher then the RB25/20/26, so you are goin to need some mount if it still doesnt clear then you have to trim the hood skeliton, and if that doesnt clear get a greedy-style intake mani......trust me i have research the engine and about droppin it into a 240... if you find a engine distrubitor that sells R32 RB25DE please tell me thanks

[xe0]

please realize that the RB30 sit higher then the RB25/20/26, so you are goin to need some mount if it still doesnt clear then you have to trim the hood skeliton, and if that doesnt clear get a greedy-style intake mani......trust me i have research the engine and about droppin it into a 240... if you find a engine distrubitor that sells R32 RB25DE please tell me thanks

Thanks for the info however, I did already know this. I will be using the mckinney motorsports mount, and if it needs to more room, I will just use a hood scoop.



P.S I will let you know, however, I will be using the rb26 head instead of the 25.

[93RPS13]

yea i thought about the RB26 head, but i couldnt afford it....if you use the Rb26 head your will have to use the Rb26 engine harness and most people use the PFC with there RB30DET/T conversion

[xe0]

yea i thought about the RB26 head, but i couldnt afford it....if you use the Rb26 head your will have to use the Rb26 engine harness and most people use the PFC with there RB30DET/T conversion

By the time I'm ready for the engine swap, I'm hoping that the aem ems will be ready *crosses fingers*. Otherwise, I will most likely use powerfc or microtech.

[93RPS13]

i would love teh RB30DET if it was able to rev higher

[xe0]

i would love teh RB30DET if it was able to rev higher

Why do you need to rev higher? I mean, I understand that the higher you can rev the more *potential* horsepower you can make but with higher revs come much greater stress on the engine. So far, everything I've read about the rb30 leads me to believe that it has the most potential out of all the rb series of motors. The safe rev point seems to be 7500.

Why would you need more then that when it easily produces more hp + torque then its higher revving rb buddies?

I mean, if you really wanted to, you could knife-edge and balance the crank, put some forged internals, stiffer valves springs,titanium retainers, oil pump and rev to 9000rpm but why?(assuming you are using the 26head with solid lifters of course)

Are you chasing 1000hp? My goal seems to be pretty high(600-900hp) and I'm not even looking into making it rev past the stock 7500rpm.

Adam

[93RPS13]

i dont know why but ever since i saw F1 cars and there small engines and high revs i like them, those things kick ***

[Porschephile]

Hi,

This is my first post, however I have been lurking this forum for a good year and a half so try to cut me some slack

I am in the process of gathering information for a project I am starting. Now, I know there are a lot of "I am making a 1000hp rb20/25/26 and OWNZORS ALL" threads, but this one is legitemate(sp).

To be honest with you I don't even own a 240sx quite yet. I am having trouble locating one in the condition I require. However, I have done a lot of research about how much money, time, blood sweat and tears it will take to pull this project off, but I am willing to do it.

It will not be a quick project, I'm estimating about 1-2 years if I'm lucky and everything goes right(and we all know when working with jdm parts + custom work+ cars everything always goes right the first time :rolleyez

My goals for this project are to have a 650-900rwhp 240sx that also gets 30-35mpg highway mileage. So how will I pull off this?

Engine:rb25detTransmission:Viper t56 6 speedSuspension: Tein flex coiloversLsd: Quaife 2 way lsdTurbo: t04r pushing 2-3bar

After I get my engine I plan on a full performance rebuild.

This includes Jun titatium springs, retainers, valvetrain,270/270 cams, solid lifter conversion, forged pistons, rods, all new bearings, arp head studs, bolts, metal headgasket, gasket set, oil squirters, and other parts.

I also plan to cryotreat the entire drivetrain to help reliabliity.

Hopefully everything will go as planned and I will have a 9000-10000rpm 800hp drag/highway monster getting 30mpg

Adam

P.S I know I missed a lot of things but I was just putting the main idea down.

You are the 1001th high HP rb post. Is there any actual reason you want or need that much power? Have you ever ridden in a 300-400rwhp car before? If so, and especially if you've ridden in something with 500+hp, you would realize how ridiculous it is for a street car. Do you have $30,000+ to properly afford a project of this magnitude? Do you realize that you have single handedly owned yourself with this post? :rolleyes

Seriously, with a performance built engine like that, you aren't getting 30+ mpg, it's just not happening. T04R? I have one and an rb26 right now. It's rated to ~30psi and ~700hp (cutback version). I'm in the process of trading it for some HKS twins, which would be much more streetable on boost. All that stuff is going in a 240z and should be in the 2500-2700lb range when finished. Guess what, I am actually very scared. 400rwhp in a ~2.5k lb car is ridiculously fast no matter how you put it. I'll have the proper parts/mods and supporting mods to make ~500rwhp and in such a light car that scares me! That much power in such a light car is DANGEROUS if you have no respect for it and have never even experienced something that powerful before (I have, that's why I have respect for serious power). I'm building mine to support that much power, when I'll only really use between 300-400hp out of it for 99% of the time.

2-3 bar? 3 bar is a friggin ridiculous idea for anything that will be used on the street. If you want to come close to the 900+ hp area you need something more like a T51r KAI or SPL. Would you do the work yourself or pay a shop to do it? Labor would cost you a TON more money. Guess what? I have $10k+ in rb swap stuff in my garage and I'm not even close to running. It's probably going to cost me another $15k before it runs, and that's including a mild performance rebuild which isn't as involved as the type of stuff you should do if you want 900hp. What kind of supporting mods would you do to the car to handle this much power? 9-10k rpm? Do you have any idea what type of mods are required to reliably handle that much rpm without blowing the engine? You'll need a $1-1.5k high cap aftermarket oil pump and water pump to properly handle the high rotational speeds without them cavitating. You also need a fully built head and valvetrain which will probably be over $5k in parts alone. Then factor in another $5k for a forged bottom end, bearings, etc. At that high of an rpm, you also need turbos that can take advantage of it. Ever see how much a T51R, twin 3037, twin 3040/3240, etc cost? Figure another $10k for the turbo setup if it's large twins, and a little cheaper if it's just one big *** t51r spl.

The rb26 is worth a ton more than the rb25. If you don't know that, you need to learn a lot more about rb's before attempting any projects. It has a much better head design. They already have solid lifters and are setup for flowing better at higher rpm. They have their own restrictions as well, like lumps in the exhaust ports that can be dremeled out, but it's just a better overall engine to start with if you want to make a lot of power with a few simple mods. Hell, nismo turbos or 2530's with fuel, MHG for safety and the supporting mods will make ~500+rwhp and be FAST AS HELL IN ANY 240!

Sorry to flame you but, saying you want that much power is just asking for it.

[TheSnail]

I agree, The guy has no Idea of what he is talking about. You can dream all day about 1000hp. When you said "I still want good gas milage" that was when I knew you were full of shi+ and would never get a rb25 or 26 far aswell a 30 instead just wasting our time for reading this crap. 1000hp? Its doable, but not by people like yourself. You cant drive 1000hp cars daily. As for myself, I am only going for 500-600hp out of my stripped out 2364lbs 240sx. I do all the work myself, and have already spent 12'gs, for a almost stock rb26 , and all the parts needed to safely drive the car in turns and on straight aways. 500-600hp in my car is not very streetable. It is infact very stupide and most likly I will be killed in the car with in a year. 1000hp come on... You can do it, hope you have 30k. in all mods, lsd, wide *** rims/tires, wide band stand alones (and that thing you are talking of 'need to get a pfc since it doesnt come with the oem harness" I hate to burst your bubble but the pfc uses the oem harness. You need fuel pump or pumps, suspension out of the ***, Oil coolers, head work with cams so big your car wont idle with out raising the rpm at idle. A three core intercooler, 1300$ oil pump, I can go on and on and on. I hope you have a local 76gas station where you can buy race gas... 30mpg? hahahaha ! ! Your going to be spending $3.50 per gallon of 100 octane gas. Next time please dont make such a lame thread. Do research and when your done go back on google and do it again. And when your done, dont bother to post your findings. I will not respect you, even if you get a rb30 rb25 rb26, but I will respect you if you have it running in your car. And if you reach 1000hp, I will take my hat off. But untill then, keep dreaming.

[xe0]

I agree, The guy has no Idea of what he is talking about. You can dream all day about 1000hp. When you said "I still want good gas milage" that was when I knew you were full of shi+ and would never get a rb25 or 26 far aswell a 30 instead just wasting our time for reading this crap. 1000hp? Its doable, but not by people like yourself. You cant drive 1000hp cars daily. As for myself, I am only going for 500-600hp out of my stripped out 2364lbs 240sx. I do all the work myself, and have already spent 12'gs, for a almost stock rb26 , and all the parts needed to safely drive the car in turns and on straight aways. 500-600hp in my car is not very streetable. It is infact very stupide and most likly I will be killed in the car with in a year. 1000hp come on... You can do it, hope you have 30k. in all mods, lsd, wide *** rims/tires, wide band stand alones (and that thing you are talking of 'need to get a pfc since it doesnt come with the oem harness" I hate to burst your bubble but the pfc uses the oem harness. You need fuel pump or pumps, suspension out of the ***, Oil coolers, head work with cams so big your car wont idle with out raising the rpm at idle. A three core intercooler, 1300$ oil pump, I can go on and on and on. I hope you have a local 76gas station where you can buy race gas... 30mpg? hahahaha ! ! Your going to be spending $3.50 per gallon of 100 octane gas. Next time please dont make such a lame thread. Do research and when your done go back on google and do it again. And when your done, dont bother to post your findings. I will not respect you, even if you get a rb30 rb25 rb26, but I will respect you if you have it running in your car. And if you reach 1000hp, I will take my hat off. But untill then, keep dreaming.

Woah woah woah. What the hell? I was posting ideas from the knowledge I have gathered over the internet. Now I, and most everyone in the us, has very little experience with any of the rb series of motors; seeing as they were never produced here.

I said I *wanted* 900hp, reliable, and good on gas(when off boost). I realize, this is not possible, without two sets of injectors and a standalone ecu that supports multiple fuel maps. So, with other *helpful* members posts, I have found an engine that almost meets my criteria stock(rb30).

Telling me that an 1000hp car as a daily driveris not possible is ignorant, unresearched, and retarted but lets play along.

http://www.to4r.com/ check out members rides most of them are +700hp at the crank and daily drivers. Please don't say "well the supra weighs 10,000,000 lbs though and teh 240 is teh lightz0r" All you said was there wasn't any 1000hp daily driven cars.

Whether you want to believe me or not I really don't care. I am only posting to learn more from more experienced people not to gain your respect, I will let my actions speak for itself when I have my car.

Adam

[TheSnail]

A good friend of mine (Dan from Battleground) has a 1100rwhp Supra. He is 2nd place in Nopi Drag wars. He has spent Quote: 70k in mods, including a motec which is a stand alone that alone costs 6-8 thousand dollars. He has one of the highest hp Supras in the Nation. He took me for a spin in the thing a year ago. And on the road he was running 600hp. Which was disgustingly fast, but why do you think he sets it to 600hp for the street? There is not a part on his motor that has not been modifed. If you were him you would most likly think you can run 1000hp daily. But Dan knows better. As modded as his car is, he may be able to get one month at 1000hp daily before he brakes something. You could not imagine what kind of wear and tear 1000hp does to any car. Like I said, if you get a rb30 in your 240, I will be proud of you, and if you get anywhere near 1000hp, I will take my hat off. But if you plan on running 1000hp daily it wont last long at all. If you fully build it, run it at 600hp and maybe it will last you a little over a year befor you have to tear it up again. -Snail

[93RPS13]

yea he right anything over a 600RWHP as a daily driver is crazy....

[Porschephile]

Excellent point TheSnail.

Yeah, everyone's heard of lots of high hp Supras and other turbocharged vehciles making ~900+hp that are "daily driven". What many people don't think about is that they are running something like 30+ psi, race gas, etc. Most of the time these guys run significantly less power when driving on the street, except for maybe a select few times. It doesn't matter what engine anyone has that is making 1000+hp. That creates serious wear and strain on any motor. Motors of that nature I would classify as more of a full on race motor than a street car motor. Most actual race motor's life span is measured in hours rather than miles, and that is for a very good reason.

xe0, seriously, I'm not trying to be a jerk but it doesn't sound like you have any idea exactly how much time, research, work and money goes into an engine that can make 1000hp. Not to mention if it were an RB built to handle over 10k rpm. That high of a rev band really does some serious wear and tear to motors like that. So you say you've been "researching" for the last year? I've been researching my Z project for the last 3+yrs and am still feeling a little overwhelmed when looking at the whole scope of my project. Mine isn't even anything serious either, and you are talking about a project that would be 10x harder and more involved.

Oh yeah, almost forgot, factor in another $10-12k+ on the prices I listed before for a Hollinger gearbox. A stock rb25 gtst gearbox won't hold 1000hp. See how it adds up? You could accomplish everything you've listed, but don't be surprised if it costs you more than $60k! Sounds like a lot, but try pricing everything necessary out and you'll see how it adds up. Me personally, I'd say shoot for 400-450rwhp and you will not have a ridiculous amount of money spent, but have awesome performance and most likely good reliability if tuned properly.

[xe0]

Excellent point TheSnail.

Yeah, everyone's heard of lots of high hp Supras and other turbocharged vehciles making ~900+hp that are "daily driven". What many people don't think about is that they are running something like 30+ psi, race gas, etc. Most of the time these guys run significantly less power when driving on the street, except for maybe a select few times. It doesn't matter what engine anyone has that is making 1000+hp. That creates serious wear and strain on any motor. Motors of that nature I would classify as more of a full on race motor than a street car motor. Most actual race motor's life span is measured in hours rather than miles, and that is for a very good reason.

xe0, seriously, I'm not trying to be a jerk but it doesn't sound like you have any idea exactly how much time, research, work and money goes into an engine that can make 1000hp. Not to mention if it were an RB built to handle over 10k rpm. That high of a rev band really does some serious wear and tear to motors like that. So you say you've been "researching" for the last year? I've been researching my Z project for the last 3+yrs and am still feeling a little overwhelmed when looking at the whole scope of my project. Mine isn't even anything serious either, and you are talking about a project that would be 10x harder and more involved.

Oh yeah, almost forgot, factor in another $10-12k+ on the prices I listed before for a Hollinger gearbox. A stock rb25 gtst gearbox won't hold 1000hp. See how it adds up? You could accomplish everything you've listed, but don't be surprised if it costs you more than $60k! Sounds like a lot, but try pricing everything necessary out and you'll see how it adds up. Me personally, I'd say shoot for 400-450rwhp and you will not have a ridiculous amount of money spent, but have awesome performance and most likely good reliability if tuned properly.

You obviously have not read the rest of this thread. I am going with the rb30 and 500-600whp tops that revs to 7500rpm max.

Also, I said I was using a tremec t56 transmission, not the rb25 gearbox. Thats right, the same transmission that is in the dodge viper, so read more carefully next time. Just because it takes you 3 years to realize what you want doesn't mean it takes everyone else. I appreciate your concern but it isn't necessary. I will post proof when my project comes together, until then, these are just words.

Adam

[BoostFab]

great abition, good luck w/ the project.

[TheSnail]

You obviously have not read the rest of this thread. I am going with the rb30 and 500-600whp tops that revs to 7500rpm max.

Also, I said I was using a tremec t56 transmission, not the rb25 gearbox. Thats right, the same transmission that is in the dodge viper, so read more carefully next time. Just because it takes you 3 years to realize what you want doesn't mean it takes everyone else. I appreciate your concern but it isn't necessary. I will post proof when my project comes together, until then, these are just words.

Adam

A T56 you say? Is it just that simple? Just slap that t56 on there why dont you. I Hope you have realized that nissan uses 24 tooth input shafts. t56 all have 26, tooth splines. U will also have to make an adapter plate to bolt it on as well as modify the clutch assembly. Research more, come back later.-Snail

[bigtom]

i know those guys with the supra they are in FL. if you want to talk to them i can get the number.

[93RPS13]

XeO you gotta chill, Porschephile isnt being a jerk, hes also not the only one doing research alot of research for his project i have to researched 1-2 years (yea i know not alot) for the project from KA24DE/T, CA18DET, SR20DET, and finally RB20/25/26/30 and all the variantions(sp?)....now i want see if the VH41DE will fit

[Porschephile]

You obviously have not read the rest of this thread. I am going with the rb30 and 500-600whp tops that revs to 7500rpm max.

Also, I said I was using a tremec t56 transmission, not the rb25 gearbox. Thats right, the same transmission that is in the dodge viper, so read more carefully next time. Just because it takes you 3 years to realize what you want doesn't mean it takes everyone else. I appreciate your concern but it isn't necessary. I will post proof when my project comes together, until then, these are just words.

Adam

I also believe the t56 is shorter, but I might be wrong. That's going to require a ton of modification, custom bellhousing or adapter plate, etc. Not like it can't be done but, it's a lot of work. If you are just shooting for 500-600whp now, then I'd consider an rb25 gearbox. If you want, you can get an OS Giken gear set (1,2,3 and 5) for $1.8-2.4k. Certain versions of those come with a strengthened input shaft, and all of the components are a little stronger than stock. However, I've seen rb25 gearboxes used at those power levels and they can handle it in stock form, especially if you take it easy on them.

One reason I've researched my project for so long is that I would like to also use my Z for road track racing occasionally, and that puts a ton more stress on a drivetrain than occasional hard street driving. It hasn't taken me that long because I am slow or anything. I'm trying to improve on every single aspect of the car, rather than just doing a drivetrain swap. Aerodynamics is a big one with my project. On some road tracks you can approach 150mph or more. I'd have the power to weight ratio to acheive that very quickly, but the aerodynamics and downforce S30 Z's have makes anything over ~100mph kind of scary, let alone 150mph!

Would you be converting an rb30 to dohc? If so, let me know if you need a copy of that writeup on the dohc conversion. I have it in pdf form. I thought the website it was on closed down awhile back? I think I've seen instruction on a few websites though.

[xe0]

A T56 you say? Is it just that simple? Just slap that t56 on there why dont you. I Hope you have realized that nissan uses 24 tooth input shafts. t56 all have 26, tooth splines. U will also have to make an adapter plate to bolt it on as well as modify the clutch assembly. Research more, come back later.-Snail

I never said anything in this project would be simple. I know a guy that modified a t56 to fit his sr20det and have talked to him about what he had to do to get it to work. So, yes, I know I will need an adapter plate, and custom driveshaft.

[xe0]

I also believe the t56 is shorter, but I might be wrong. That's going to require a ton of modification, custom bellhousing or adapter plate, etc. Not like it can't be done but, it's a lot of work. If you are just shooting for 500-600whp now, then I'd consider an rb25 gearbox. If you want, you can get an OS Giken gear set (1,2,3 and 5) for $1.8-2.4k. Certain versions of those come with a strengthened input shaft, and all of the components are a little stronger than stock. However, I've seen rb25 gearboxes used at those power levels and they can handle it in stock form, especially if you take it easy on them.

One reason I've researched my project for so long is that I would like to also use my Z for road track racing occasionally, and that puts a ton more stress on a drivetrain than occasional hard street driving. It hasn't taken me that long because I am slow or anything. I'm trying to improve on every single aspect of the car, rather than just doing a drivetrain swap. Aerodynamics is a big one with my project. On some road tracks you can approach 150mph or more. I'd have the power to weight ratio to acheive that very quickly, but the aerodynamics and downforce S30 Z's have makes anything over ~100mph kind of scary, let alone 150mph!

Would you be converting an rb30 to dohc? If so, let me know if you need a copy of that writeup on the dohc conversion. I have it in pdf form. I thought the website it was on closed down awhile back? I think I've seen instruction on a few websites though.

Porschephile,

I hope I didn't come off as being angry in my last reply, it wasn't my intention. I was just becoming a little frustrated with everyone saying "you can't do this, you can't do that, research more, you don't know anything" kinda stuff.

I realize that a project of this magnitude is going to take a long time to come together, but don't get me wrong, it will happen. Also, one of the main reason for going with the t56 is because they are in junkyards all of the us, and I really want a 6 speed transmission.

That way, if I pop my transmission, I won't have to scour the internet trying to find replacement japenese parts.(Note I realize the rest of the engine will be japenese parts but I'd like to cut down on as many as I can).

As far as the rb30 to dohc, yes, I will be using the rb26 head. I already have the pdf your are talking about, plus many websites detailing install.

Thanks for your reply, Adam