I'm wondering who, if anyone on this board, has swapped a RB26DETT into a 240? Specifically a S14? I know there are a bunch of guys on here that are willing to do it, but the $6500 for the engine is enough, i'm doing the swap myself. So i wanna find someone who i can ask questions, advice, etc.
I also wanna know how many are out there. So let me know if you actually have seen a RB26DETT in a 240. And please state weither or not it was a S13 or S14 and where it was (US, CAN, JAPAN, AUS, etc)
Thanks again guys...
Whose actually done it?
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SilviaLuvr
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rbsileighty
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meggala wrote:it fits with out cuuting I have see one but that was right hand drive
The biggest problem I've heard with this swap is the fact that the turbo's are on the same side as the steering (here)... that is why it is pretty much only seen overseas. The best way to really start into this project would be one of two options (in my opinion):
1. Convert the car to RHD
2. Convert the motor to single turbo (personally I think this would be a sin)
This project is in the future for me as well. I am most likely going with the RHD conversion b/c I think the JDM look is super cool, and I really like the spooling of the twins since I prefer road racing.
I also think it would be awesome to convert my Pathfinder to an RB... but I have to wait until it is not my primary driver... which will probably be a while.
Anyway... good luck bud!!
Sig
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Redline240
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Yeah i definatly don't want to go to a single turbo. If i ever considered a turbo upgrade it would be just bigger twins. I'm planning on doing the swap this summer or in the fall. I love the fact that there seems to be no north american S14's with the RB26 swap. I won't be the first one to do it in NA but i might be the first in canada, and thats good enough for me. I don't know if i want to go with a RHD setup, i'll consider it though. I'm hoping someone will do it with LHD and can advise me on the steering mods. I think Night said that its just a matter of changing the power steering lines. I hope this is all, cause if i have to change to RHD it's gonna get real expensive!....
We'll just have to wait and see....
We'll just have to wait and see....
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dreamsOfSkylines
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Have you ever driven a turbo car with a big turbo? It's a blast! Granted the t88 is a little much but i bet the top end power is amazing! You floor the gas in a gear, wait for boost, then when it hits 10psi, BAMM-straight to 20 psi with a huge power surge. Definently takes some time to get used to driving around town but as long as you hav full boost at the next up shift, then you are golden. It's actually good for gas mileage in the city too! 
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GatorS14
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I've seen an RB26DETT in a v-spec blue S14(MC) w/ a bomex body kit.That thing was sweet! I seen it last april and he said it's been in there a year.So, thats going on 3 years this guy has had one in his S14.It has a full interior and 18 inch(i wanna say BBS's)and runs way under 10 secondsin the qaurter he has to tap the brake to get 13's cause he doesn't have a helmet,rollcage,etc.. !what a machine! I'm pretty sure it was still u.s. style steering.And I have seen his ride on the net ,but i dont have the link. I seen him in Gainesville Florida and pretty sure he is somewhere in the south.
That car is my favorite car i've ever seen.<----had to throw that in.:ylsuper
That car is my favorite car i've ever seen.<----had to throw that in.:ylsuper
FrEaK wrote:Big turbos aren't better then smallers turbos on gas... and they are really only useful for drag racing...
You obviously don't know what you are talking about. What experience do you have with either set up? You may lose some of the low end response but you gain in top end power. How is that not useful? You better not port your head, add a custom intake mani or even switch to aggressive cams because they will all hurt low end performance also. You better tell all the supras and skylines that race in the JGTC that they better switch back to a dual set up!
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FAST-DATSUN
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Your a fool if you think that huge sized turbo on a course besides a drag strip or a wide open course is effective... turns require a smaller, quicker spooling turbo, low end power is paramount on a advanced tuny road circuit... unless i have been lied to all my life...
I dont know what I'm talking about? What because you drive a dsm that makes you the most knowledgable turbo person on thse boards? News flash, bigger isn't always better.
Around town you want a nearly non effective turbo? So instead of boosting and making relative power you'll be basically running NA with a lowered compression? Doesn't sound very effective to me?
Big turbos like i said are great for big loopy turns or straightline speed, or anything that doesn't require tons of braking or down shifting...
To be perfectly honest, i ve never driven a turboed setup, but i've ridden in a few, and they both are distinct in the kind of power they make and the type of racing they are built for...
Thats what i'm saying...
I dont know what I'm talking about? What because you drive a dsm that makes you the most knowledgable turbo person on thse boards? News flash, bigger isn't always better.
Around town you want a nearly non effective turbo? So instead of boosting and making relative power you'll be basically running NA with a lowered compression? Doesn't sound very effective to me?
Big turbos like i said are great for big loopy turns or straightline speed, or anything that doesn't require tons of braking or down shifting...
To be perfectly honest, i ve never driven a turboed setup, but i've ridden in a few, and they both are distinct in the kind of power they make and the type of racing they are built for...
Thats what i'm saying...
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SilviaLuvr
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Why?? Skylines and Supras always wins. why should they change? why should they go slower? For you can turn on the tv and se that a dsm (if they are even in JGTC) be close to a Supra or skyline. Sorry bro but your out of your league in this one.quick dsm wrote:You obviously don't know what you are talking about. What experience do you have with either set up? You may lose some of the low end response but you gain in top end power. How is that not useful? You better not port your head, add a custom intake mani or even switch to aggressive cams because they will all hurt low end performance also. You better tell all the supras and skylines that race in the JGTC that they better switch back to a dual set up!
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rbsileighty
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ok... here you can judge for yourself what you think (next best thing to exper... I guess...) here is what MKIV says about how each turbo kit works for the Supra:
4. which single/twin turbo kits fits my supra best? their potential?
take a look at steve v's turbo page for great information on a lot (if not all) of the different turbos out there that can be used on the 2jz.
RPS Kits: TS04: Most common housings for this turbo are 0.58 and 0.70, it makes about 450 rwhp in the former and 500 rwhp in the latter, spools slightly slower than stock, and can commonly be used on the stock fuel system. This is a good turbo if you have an automatic, and can be daily driven. T61: Somewhat bigger than the TS04, this turbo can make 550-600 rwhp. It requires an upgraded fuel system. This doesn't lag too much, a T61 car lags a bit more than stock, but is streetable, if not particularly responsive, could be used for road racing, not sure if I would recommend this turbo for a daily driver. T66: Capable of making 600-675 rwhp, the T66 is a bigger turbo yet, this is probably as big a turbo as I would recommend for the street, it makes full boost right around 4250 rpm on most cars, a significant amount of lag, but not horrendous... (full boost being 1.5-1.6 bar) This is a very common turbo, and a nice setup for drag racing with some street driving. T70: Slightly bigger than the T66, the T70 is probably not a streetable turbo. Lag is a couple hundred rpm more than the T66, power output ranges from 650-750 rwhp... perhaps a bit more with headwork... This is a nice turbo for drag racing. T72+: These turbos are only good for drag cars for the most part, lag is far more than smaller turbos, power outputs are from 750-1000 rwhp. Twin turbo kit: Using T25/28 ball bearing turbos, this kit will make slightly more than 500 rwhp, while spooling faster than the TS04 0.70... very good choice for a street car that needs more power than BPU. HKS: GT2540: These twin turbos are used on the UPRD supra, and used in single form on quite a few different cars. Nice turbos, not enormous lag, maybe slightly more lag than their brethren the 2835s, but they spool a little faster too...I'm told that car makes power in the 900 rwhp range on turbo alone, but this could be just a rumor. GT2835: Probably the most common twin turbos used on supras, this kit is large, and the turbos have a fair amount of lag, they make full boost in the 5000 rpm range, perhaps a bit higher. Very nice top end on this system, and I've seen power output in the 700-800 rwhp range fairly consistently with the right fuel support. T04R: A fairly large single turbo, this comes with a pretty big exhaust A/R stock, 0.96... I would have thought it would be laggy, but my experience with it shows otherwise... it spools a touch faster than a T66, but has a bit more power output capability... it has made power in the 675-750 rwhp range, and is becoming fairly popular because of this. T51R: This is HKS's biggest single turbo that is commonly sold, although it isn't THAT much bigger than the T04R. Probably in between the T66 and T70 in size, the T04R makes full boost in the 5k range, and none has really been able to realize its full power potential... I wouldn't be surprised at seeing 800+ rwhp from a T51R under the right circumstances... very strong turbo but I wouldn't use it on a street car personally. Greddy: T67: The T67 isn't used on supras very often, its a TD07-25g turbo, more commonly used on MR2s... its capable of right around 600 rwhp, and spools similarly to a T66, so most people choose to go with either the T66 or T61. Again, on the upper limit of streetability. T78: This is one of the more common turbos used on supras... it makes full boost somewhat past 5000 rpm, but has the potential to make 750+ rwhp... nice turbo, very good top end once it gets spooled... lots of drag cars use it, and its fairly inexpensive now. T88: Somewhat bigger than the T78, the T88 has close to 1000 rwhp capability, although I would imagine it makes full boost close to 6000 rpm, so a built motor is almost a certainty with this turbo... not too expensive but its not too usable on most supras so... Blitz: Single: The blitz single turbo uses a K27 turbo and is capable of right around 600-650 rwhp... spools somewhat faster than a T66, and the kit is well made, but you need to modify it to work on the US spec supra, pain in the *** to do. Twins: Supposedly capable of right around 700 rwhp with about as much lag as the single, haven't really heard too much about it to corroborate this, but I wouldn't doubt it... kind of expensive, and this needs heavy modification to work on a US spec supra. Others: TPC: This turbo supposedly has 625-750 rwhp capability with faster spool up than a T66... don't know enough about it to really say, but the dyno charts seem to show full boost at right around 4500-5000 rpm, which isn't TOO bad for a turbo with its power capabilities... not enough people use it to really say. Fastrax: Fastrax makes all sorts of custom turbos... my experience with them is that they make somewhat more power and spool somewhat faster than the turbos they were built off of... Fastrax has allot of experience in the drag racing scene, and they make high quality products. My Fastrax turbo supposedly has 750-800 rwhp capability while spooling slightly faster than a T66... it certainly spools faster than a T66 in my experience, we'll have to see how much it puts down on the dyno.
Make your own call...
4. which single/twin turbo kits fits my supra best? their potential?
take a look at steve v's turbo page for great information on a lot (if not all) of the different turbos out there that can be used on the 2jz.
RPS Kits: TS04: Most common housings for this turbo are 0.58 and 0.70, it makes about 450 rwhp in the former and 500 rwhp in the latter, spools slightly slower than stock, and can commonly be used on the stock fuel system. This is a good turbo if you have an automatic, and can be daily driven. T61: Somewhat bigger than the TS04, this turbo can make 550-600 rwhp. It requires an upgraded fuel system. This doesn't lag too much, a T61 car lags a bit more than stock, but is streetable, if not particularly responsive, could be used for road racing, not sure if I would recommend this turbo for a daily driver. T66: Capable of making 600-675 rwhp, the T66 is a bigger turbo yet, this is probably as big a turbo as I would recommend for the street, it makes full boost right around 4250 rpm on most cars, a significant amount of lag, but not horrendous... (full boost being 1.5-1.6 bar) This is a very common turbo, and a nice setup for drag racing with some street driving. T70: Slightly bigger than the T66, the T70 is probably not a streetable turbo. Lag is a couple hundred rpm more than the T66, power output ranges from 650-750 rwhp... perhaps a bit more with headwork... This is a nice turbo for drag racing. T72+: These turbos are only good for drag cars for the most part, lag is far more than smaller turbos, power outputs are from 750-1000 rwhp. Twin turbo kit: Using T25/28 ball bearing turbos, this kit will make slightly more than 500 rwhp, while spooling faster than the TS04 0.70... very good choice for a street car that needs more power than BPU. HKS: GT2540: These twin turbos are used on the UPRD supra, and used in single form on quite a few different cars. Nice turbos, not enormous lag, maybe slightly more lag than their brethren the 2835s, but they spool a little faster too...I'm told that car makes power in the 900 rwhp range on turbo alone, but this could be just a rumor. GT2835: Probably the most common twin turbos used on supras, this kit is large, and the turbos have a fair amount of lag, they make full boost in the 5000 rpm range, perhaps a bit higher. Very nice top end on this system, and I've seen power output in the 700-800 rwhp range fairly consistently with the right fuel support. T04R: A fairly large single turbo, this comes with a pretty big exhaust A/R stock, 0.96... I would have thought it would be laggy, but my experience with it shows otherwise... it spools a touch faster than a T66, but has a bit more power output capability... it has made power in the 675-750 rwhp range, and is becoming fairly popular because of this. T51R: This is HKS's biggest single turbo that is commonly sold, although it isn't THAT much bigger than the T04R. Probably in between the T66 and T70 in size, the T04R makes full boost in the 5k range, and none has really been able to realize its full power potential... I wouldn't be surprised at seeing 800+ rwhp from a T51R under the right circumstances... very strong turbo but I wouldn't use it on a street car personally. Greddy: T67: The T67 isn't used on supras very often, its a TD07-25g turbo, more commonly used on MR2s... its capable of right around 600 rwhp, and spools similarly to a T66, so most people choose to go with either the T66 or T61. Again, on the upper limit of streetability. T78: This is one of the more common turbos used on supras... it makes full boost somewhat past 5000 rpm, but has the potential to make 750+ rwhp... nice turbo, very good top end once it gets spooled... lots of drag cars use it, and its fairly inexpensive now. T88: Somewhat bigger than the T78, the T88 has close to 1000 rwhp capability, although I would imagine it makes full boost close to 6000 rpm, so a built motor is almost a certainty with this turbo... not too expensive but its not too usable on most supras so... Blitz: Single: The blitz single turbo uses a K27 turbo and is capable of right around 600-650 rwhp... spools somewhat faster than a T66, and the kit is well made, but you need to modify it to work on the US spec supra, pain in the *** to do. Twins: Supposedly capable of right around 700 rwhp with about as much lag as the single, haven't really heard too much about it to corroborate this, but I wouldn't doubt it... kind of expensive, and this needs heavy modification to work on a US spec supra. Others: TPC: This turbo supposedly has 625-750 rwhp capability with faster spool up than a T66... don't know enough about it to really say, but the dyno charts seem to show full boost at right around 4500-5000 rpm, which isn't TOO bad for a turbo with its power capabilities... not enough people use it to really say. Fastrax: Fastrax makes all sorts of custom turbos... my experience with them is that they make somewhat more power and spool somewhat faster than the turbos they were built off of... Fastrax has allot of experience in the drag racing scene, and they make high quality products. My Fastrax turbo supposedly has 750-800 rwhp capability while spooling slightly faster than a T66... it certainly spools faster than a T66 in my experience, we'll have to see how much it puts down on the dyno.
Make your own call...
SilviaLuvr wrote:Why?? Skylines and Supras always wins. why should they change? why should they go slower? For you can turn on the tv and se that a dsm (if they are even in JGTC) be close to a Supra or skyline. Sorry bro but your out of your league in this one.
I was saying this to prove the point that those cars almost always use big singles and they are not drag cars, that's all.
Those cars (JGTC) do drive on complex courses smart guy and they do use big singles. Granted, larger turbos offer more lag but i think you're looking at an extreme case for street driving. Just look at you're tac when you drive around. When do you usually shift. If you have a large turbo that hits full boost at around 4200 rpms, you still are in the posative (boost wise) around 3300-3500rpm (depending on center section and tuning etc.) A large turbo pushing just a few psi is still moving a lot of air but they feel even more laggy because the power surge is later and stronger. To say a smaller turbo is better than a large one on pump gas is just plain wrong. It just makes no sense. You may not know a lot about turbos, but that's okay. A larger turbo will move more air than a smaller unit at the same boost level and that air will also be cooler because the larger unit will be more efficient. That increase in efficiency will also allow you to run higher boost pressure on pump gas. Sounds like the smaller one is much better eh.
To call me a fool is really inteligent when you look at the jgtc cars and rally cars. Both require constant down shifting and complex driving and those cars almost always use large single units. I don't know how else to explain it. The only time a smaller turbo will be better than a large on is on an auto-x course where response is more important than power out put. Oh also when panzis like you on the street that don't know how to down shift but being that your probably still driving an na and dreaming of a swap you know more than i guy that's been building and driving turbo cars for years. There is no problem with that because we all have to start some where and we all can learn a thing or two.:rolleyes the whole single vs. twin is highly debated and will always come down to prefrence. I was merely stating that most of the competion caliber cars (with inline motors) run large single turbos. Plus the single set up is much cheaper, lighter, and simplier.:thinker ::rolleyes
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WDRacing
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I've driven my Skyline for 3 years with a laggy TO4E. It didn't hit boost full boost tilla round 5000 rpm. At which point it would pull your teeth out. But It sucked to drive around town, it sucked in the twisties and it was worse on gas because I had to floor it all the time in order to excellerate worth a crap. But I had my car set up for drag only. To include cams and porting.
A set of 2530's would be a great choice for some reliable twins. This has already been proven. A single turbine will work just as well as any set of twins as far as spool and power output goes, But that door swings both ways. There are a ton of trims to choose from. You just have to decide what you want from your car. Singles however, end up being cheaper. Especially if you have expensive taste like I do.
WD
A set of 2530's would be a great choice for some reliable twins. This has already been proven. A single turbine will work just as well as any set of twins as far as spool and power output goes, But that door swings both ways. There are a ton of trims to choose from. You just have to decide what you want from your car. Singles however, end up being cheaper. Especially if you have expensive taste like I do.
WD
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Siddhartha
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Maybe if you didn't make so many well educated statements as "big turbos suck on gas-they are only good for going in a straight line", others wouldn't fell the need to prove you wrong. That's all. I MYSELF stated that day to day driving would suffer from the bigger turbo depending on turbo sizing and gas mileage only suffers when trying to drive "briskly" with a very large turbo -5k spool. The middle ground tends to disappear so you have to hold higher revs when in passing situations. When you're just petering around though, pre-spool situations are usually tuned very lean to increase spool up, yielding better mpg. Again, it's all prefrence. Some people will be happy going from na to det power. Some people want more power and rip out the t25 and throw on a 3037 or larger turbo. I don't know everything about forced induction but i have been messing around with it for a while-regardless of what i drive. I simply proved your statements wrong. That's ok isn't it! That's how we learn. After you one day go from upgraded turbo, to upgraded turbo, maybe then you'll understand more and explain it to someone else who thinks bigger turbos suck.
You didn't prove me wrong at all.. btw huge turbos do neccessarily spool at 5000, it depends on turbine housings and turbine wheels, as well as the general balanced weight of the turbo....
Running lean is bad for your engine over long periods of time... so day to day driveng with a slightly lean mixture will take time off the life of your engine...
Yes big turbos take to long to spool, which is why they suck on the circuit. That why you don't see the big boys with twin T88s racing. 1 big turbo is far less efficient in making power throughout the band then two smaller turbos and will always be...
Your logic suggests then a person driving their car around town should keep there car in the lower rpm range in order to not jog the turbo... this may be true, but your loosing power and efficeintcy because your still spinning the turbine..
Big turbos do suck on gas because for everytime you happen to take your car that little bit above minimum spooling rpm, your car just dumped a crap load of fuel in anticipation of hard acceleration...
I'm sure in a perfect world people could all keep there cars at the perfect low rpm (CVT) but if your driving stick, and your shifting through gears, your still going to spool, maybe not fully, but your still going to spool, and that takes fuel...
ECU management is critical for balancing them both out... but a smaller, more reponsive turbo, are far more useful in circuit and day to day driving them an enormus turbo will ever be...
Running lean is bad for your engine over long periods of time... so day to day driveng with a slightly lean mixture will take time off the life of your engine...
Yes big turbos take to long to spool, which is why they suck on the circuit. That why you don't see the big boys with twin T88s racing. 1 big turbo is far less efficient in making power throughout the band then two smaller turbos and will always be...
Your logic suggests then a person driving their car around town should keep there car in the lower rpm range in order to not jog the turbo... this may be true, but your loosing power and efficeintcy because your still spinning the turbine..
Big turbos do suck on gas because for everytime you happen to take your car that little bit above minimum spooling rpm, your car just dumped a crap load of fuel in anticipation of hard acceleration...
I'm sure in a perfect world people could all keep there cars at the perfect low rpm (CVT) but if your driving stick, and your shifting through gears, your still going to spool, maybe not fully, but your still going to spool, and that takes fuel...
ECU management is critical for balancing them both out... but a smaller, more reponsive turbo, are far more useful in circuit and day to day driving them an enormus turbo will ever be...
For my sake in the arguement, i was starting a turbo with a spool time around 4300rpm, not 5k. I believe a 5000 rpm spool is at the limit of streetability.1. The JGTC supras run a T88 34d-pretty damn big. I think the skylines use those as well. They must suck for circuit driving.2. A lean condition in low rpm will not hurt engine longevity provided you are not detonating.3. Driving around at lower rpms with a larger turbo will increase mpg-smaller turbos will spool sooner causing the engine to injest more air and burn more fuel.4. As far as a car "dumping fuel" the amount of fuel is calculated by the amount of air being drawn in to the engine. When the turbo spools, the engine will injest more air and ad the correct amount of fuel. This happens with any turbo, small or large. The larger unit may be moving more air and using more fuel but the ecu does not just dump it in there. That doesn't make sense. That's why people tune their cars.5. The turbine spins always, no matter what size turbo you have. That's the whole advantage of turbocharging-using otherwise "wasted exhaust energy. A larger turbo will even have less back pressure due to a larger turbine housing.
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Siddhartha
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There is nothing wrong with race cars using large turbos. They:a. Produce less heatb. Are less complex making it easier to work on-diagnosec. Less weightd. Very high redlinese. Run at high rpms all the time! We are not talking about auto-x cars that rarely see past second gear. f. Not to mention ALS (anti lag systems)! g. Super-exotic turbo internals that spool waaaay faster than off the shelf turbos and cost 100X more!h. Race gas, crazy cams for crazy timing!!!
And the list can go on and on! Come on, take the JGTC out of this conversation. They are nothing like street cars. That goes for Rally cars as well.
And the list can go on and on! Come on, take the JGTC out of this conversation. They are nothing like street cars. That goes for Rally cars as well.
The jgtc cars (and rally cars) are only in the conversation because it was stated that big turbos are only good for going straight and i brought them in to refute the statement. I'm am weel aware of the items that you posted as well as the use of sequential trannies whick make for much quicker shifts while stayin on the gas.