Do to my incarceration...lol...my funds are quite a bit less then they were when I started the KAT 3 years ago. Since then I've been through lots of various combo's and the end result is the #3 rod taking up residence on the outside of the block. I guess it was only a matter of time. Luckily for me, I bought all new forged internals prior to my discharge from the USAF. I simply lack the block to install them in.
On to the point, since I'll be working part time until my bussiness takes off in full swing, I've decided to a budget minded build. This doesn't mean I'm going to use cheap stuff, it just means I'll be fabbing things myself or doing without highend parts. I also wanted to make this a KAT forum project. With my car as a test bed, we can try all of the various combo's and idea's in a semi controlled environment. Since I have access to every tool we can think of from the base Hobby Shop, I can weld most anything, I have a wide band, knock meter and scan master.
The main goal of this project is to build the highest WHP/Torque combination we can while keeping an average DIY budget. So no standalone or fancy smancy ex-mani from Ivan or whoever. I also want maximum fun while daily driving.
I'll give a quick list of the parts I already have:1995 240SX SE, Leather, Sunrroof, Power everything and ABS, so its heavy.2 turbo's, T3/TO4E 50 trim or a ball bearing TO4E in 50 trim with a .81 AR EXI have two Bosch inline fuel pumps, both good for 400whp on their low sideI have two aeromotive fuel rails8 42lb injectorsA mid size FMIC, I'll be doing custom end tanks for better flowA MSD BTM for timing A SAFCII for fuelPauter RodsRoss PistonsKoyo RadiatorSpec ClutchFidenza Flywheel
I also have a DIY Alcohol Injection kit and a SMC Alky Kit.
Things to consider are the ex manifold design, I'll be welding it up myself to save cash. All the plumbing will be redone from intake filter to Cat-Back. I'm considering fabbing a new intake mani. Porting and polishing everything...etc, you guys get the drift.
I would like to keep this thread on topic as much as possible. So keep the opinions to those that can be used on this project. Little one liners like, "wow, great idea" will be deleted so this can be turned into an article when the project is done.
I'm open to almost all suggestions from you guys and would like to discuss everyone's different idea's whether it be about cooling or manifold flow design. Try to include prices and a link if possible for comparison. Eventually this car will driven to all the NICO/NOPI meets I can attend, atleast 3 a year if everything goes as planned. The story of the build as well as everyone who helps out will accompany the car to the shows. I'll be drag racing the car at every event that has drag as an option. This isn't a purpose built drag car mind you, but it will definitly see 1320 time. I look forward to talking things over with everyone in here. Look for me on AIM, WDRacin , if you want to talk in real time.The floor is open!!!
WD
My New Project
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Florida240sx
- Posts: 11114
- Joined: Thu Jul 01, 2004 7:17 am
- Car: 1993 Nissan 240SX Hatch 5spd
2012 Nissan Altima S coupe 2.5 - Location: DeLand FL
Seems you got everything covered. Just need bearings and headgasket.... Only thign engien wise is headwork whether you want to go with 91 hot cams, dual exhaust or crowed/pdmMake the setup to go with alky injection.Go with a short log mani. Maybe modify the stock exhaust mani I'd go with the t4 on this build.....
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WDRacing
- Moderator
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- Joined: Mon Nov 25, 2002 2:00 am
- Car: 95 240SX, 99 BMW 540i, 01 Chevy Express, 14 Ford Escape
- Location: MFFO
- Contact:
I'm definitly building a semi-equal length mani for the exhaust. I went with a short runner log the first time. It definitly doesn't flow enough for the numbers I'm looking for.
The T4 is great for power, but bad for daily driving. Its on the car now and I don't see more then 8 lbs of boost till 5000. But its good for gas mileage I suppose. I'll probably switch the compressor to a TO4R or S trim if I keep it. If you're gonna have lag, you might as well have the volume to go with it.
WD
The T4 is great for power, but bad for daily driving. Its on the car now and I don't see more then 8 lbs of boost till 5000. But its good for gas mileage I suppose. I'll probably switch the compressor to a TO4R or S trim if I keep it. If you're gonna have lag, you might as well have the volume to go with it.
WD
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Florida240sx
- Posts: 11114
- Joined: Thu Jul 01, 2004 7:17 am
- Car: 1993 Nissan 240SX Hatch 5spd
2012 Nissan Altima S coupe 2.5 - Location: DeLand FL
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TrunkMonkey
- Posts: 3190
- Joined: Sun Aug 04, 2002 7:48 am
- Car: 2000 Lincoln Navigator
leave your compressor alone brian.
to reduce lag, try a longer duration exhaust cam and a bottom mount tubular manifold. the bottom mount will allow you to use a less restrictive downpipe. everything after the turbine should be as straight as possible. i wouldn't go with a straight 4" downpipe. match whatever your turbine outlet is, then increase to 4" further down the system. preferably anywhere after the downpipe where you have the least amount of bends. no cat if you can get away with it, and use a resonator instead of a muffler.
just my .02
-demetrius
to reduce lag, try a longer duration exhaust cam and a bottom mount tubular manifold. the bottom mount will allow you to use a less restrictive downpipe. everything after the turbine should be as straight as possible. i wouldn't go with a straight 4" downpipe. match whatever your turbine outlet is, then increase to 4" further down the system. preferably anywhere after the downpipe where you have the least amount of bends. no cat if you can get away with it, and use a resonator instead of a muffler.
just my .02
-demetrius
If I might interject, I'd suggest using the T3/T04E hybrid. It has been proven to make upwards of 400whp and you aren't going to get that high with the tuning equipment you have onhand (SAFC2 + BTM). I'd say you can hit 300-325whp or so safely with that tuning system, but not much more than that without suffering high EGT's.
I'm also making the assumption that your BTM does NOT have the "begin retard" function, which allows you to reach a set boost level before beginning the retard / psi event. Please correct me if I'm wrong in my assumption, as this would certainly change how much power you make safely.
Also, if I again might add, you could sell the SAFC2 and BTM and use the funds obtained to purchase either a daughterboard from HybridKA.com or a BikiRom, either of which would allow for full tunability.
If you don't already own ROM burning equipment, then you may want to opt for the BikiRom in the interest of saving about $100 (the cost of a good burner + shipping).
I didn't see a BOV on your list. I'd suggest the good ol' TurboXS RFL, as it' proven to be effective and fairly cheap.
What wastegate do you have? Tial 38mm gates are pretty decently priced these days. Or, if you really want to go cheap, I have a nice 5-bolt swingvalve with actuator just lying around. I'd be willing to donate it to the project. It will bolt right on that T3/T04E.
I'm also making the assumption that your BTM does NOT have the "begin retard" function, which allows you to reach a set boost level before beginning the retard / psi event. Please correct me if I'm wrong in my assumption, as this would certainly change how much power you make safely.
Also, if I again might add, you could sell the SAFC2 and BTM and use the funds obtained to purchase either a daughterboard from HybridKA.com or a BikiRom, either of which would allow for full tunability.
If you don't already own ROM burning equipment, then you may want to opt for the BikiRom in the interest of saving about $100 (the cost of a good burner + shipping).
I didn't see a BOV on your list. I'd suggest the good ol' TurboXS RFL, as it' proven to be effective and fairly cheap.
What wastegate do you have? Tial 38mm gates are pretty decently priced these days. Or, if you really want to go cheap, I have a nice 5-bolt swingvalve with actuator just lying around. I'd be willing to donate it to the project. It will bolt right on that T3/T04E.
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WDRacing
- Moderator
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- Car: 95 240SX, 99 BMW 540i, 01 Chevy Express, 14 Ford Escape
- Location: MFFO
- Contact:
I made 498 WHP on my RB20 with a stock ecu and alcohol injection...So the SAFC and MSD aren't going to restrict how much HP I make to much. I was already running 20psi when I ruined the first block. The MSD BTM will have a boost controller inline so it will only see 8 lbs of boost or so. Any more any it's simply to much timing. The combustion temps will be kept in check by methonal etc anyway.
I'm going to get with another of the members here and discuss the ECU flash/rom tune as an option. I'm going to link him so he can add his opinions here and there as to whats the best way to do things. The T3/TO4E is a proven turbo, I've been recommending them for 4 years now. But I ran it already and it won't support the WHP I'm looking for. I'm really looking for atleast 500 on boost with a NX kit plumbed in for track only occassions and it will be jetted for 250. The NX Maximizer will control all of the nitrous functions as far as retard, rate of gain, gear counting and actual amount injected. It's a great system.
Demetrius...man long time no see. The exhaust flange on my T4 is just under 4", I think it's 3.5 actually. SO it isn't really worth the transition in my mind. I doubt the velocity will suffer to much. As far as exhaust goes, I'll be selling my RS*R Titanium for a few bucks(hint hint) and running a set of "custom" 2.5" pipes that will dump just in front of the two rear tires. Should be pretty loud and look really cool. The car will be sitting on big and littles from Weld and I'm seriously contemplating a mini tub for the rear end. I think that will look pissed. It's funny you mention the bottom mount, I've been arguing for top mount for years now, but I decided to go with a bottom mount aboiut a month ago when I was sketching out the intake and exhaust mani.
I'll admit, I'm pretty excited about this project. Oh by the way, as far as tuning goes, a wideband and a knock meter are pretty much all that you'll need to tune a car. The EGT is nice, but not required by any means. I can borrow my neighbors though...so I have one on hand.
I have a ton of idea's as far as secondary/subinjection so I'll be using methonal/toluene for high boost. I'm mainly building this with everyones input so we can have a quality KAT without paying a shop to do it for you. By we I mean NICO. Granted it will be my car, but I have already recieved alot of help from our members. Not only that, but when the new guys catch the boost addiction, they be able to read this article and have a step by step done for them with everyones idea's and examples etc.
Keep the idea's rollin in.
Peace
I'm going to get with another of the members here and discuss the ECU flash/rom tune as an option. I'm going to link him so he can add his opinions here and there as to whats the best way to do things. The T3/TO4E is a proven turbo, I've been recommending them for 4 years now. But I ran it already and it won't support the WHP I'm looking for. I'm really looking for atleast 500 on boost with a NX kit plumbed in for track only occassions and it will be jetted for 250. The NX Maximizer will control all of the nitrous functions as far as retard, rate of gain, gear counting and actual amount injected. It's a great system.
Demetrius...man long time no see. The exhaust flange on my T4 is just under 4", I think it's 3.5 actually. SO it isn't really worth the transition in my mind. I doubt the velocity will suffer to much. As far as exhaust goes, I'll be selling my RS*R Titanium for a few bucks(hint hint) and running a set of "custom" 2.5" pipes that will dump just in front of the two rear tires. Should be pretty loud and look really cool. The car will be sitting on big and littles from Weld and I'm seriously contemplating a mini tub for the rear end. I think that will look pissed. It's funny you mention the bottom mount, I've been arguing for top mount for years now, but I decided to go with a bottom mount aboiut a month ago when I was sketching out the intake and exhaust mani.
I'll admit, I'm pretty excited about this project. Oh by the way, as far as tuning goes, a wideband and a knock meter are pretty much all that you'll need to tune a car. The EGT is nice, but not required by any means. I can borrow my neighbors though...so I have one on hand.
I have a ton of idea's as far as secondary/subinjection so I'll be using methonal/toluene for high boost. I'm mainly building this with everyones input so we can have a quality KAT without paying a shop to do it for you. By we I mean NICO. Granted it will be my car, but I have already recieved alot of help from our members. Not only that, but when the new guys catch the boost addiction, they be able to read this article and have a step by step done for them with everyones idea's and examples etc.
Keep the idea's rollin in.
Peace