SCREW RB SWAP, GOING KAT...

[BlackKat]

HI GUYS, I WAS ORIGINALLY PLANNING ON DOING A RB SWAP, THOUGHT ABOUT IT ALOT AND DECIDED THAT KAT IS THE ONLY WAY. I HAVE BEEN READING ALOT ON KAT FORUMS, KAT.ORG AND HAVE A COUPLE OF QUESTIONS IF ANYONE IS WILLING TO HELP ME OUT A LITTLE BIT, I HAVE A 98 S14 WITH 150K MILES ON THE ENGINE, RUNS PERFECT, NO LEAKS, ETC, ALL HIGHWAY MILES...HP GOAL IS 450WHP, OR SOMEWHERE CLOSE, HERE IS WHAT I THINK WILL GET ME THERE, JUST NEED POINTERS AS FAR AS WHAT IS NEEDED, WHAT IS OVERKILL, WILL BE DAILY DRIVER, NO STREET RACING, NO DRAG RACING, JUST A FUN HIGHWAY MONSTER, AND KILLING MY FRIENDS S/C COBRA EVERYDAY.Ross PistonsEagle RodsBalanced CrankS13/JWT cams(already have s13 cams)Polished Head750cc Injectors255lbs/hr walboro fp?kind FMIC?kind Downpipehks bov (ss)?brand turbo manifoldDual valve springs?Titanium Retainers?Bigger Radiator w/dual electic fansLightweight pulleys?kind Ignition systemStandalone/JWT ECU?heard alot of good things from precision,ihi turbos,Tial wastegatespec clutchnew ka trannyj30lsdI would like the engine to rev a bit further than 6500rpm, how much can i push it or what will i need to get it to say 7500 maybe 8000 rpm?Any help is greatly appreciated, or maybe i should just get a turbo kit? i really dont want to, id rather order all the parts individually.Ill be doing everything myself along with my fiance, who knows her 5hit.Depending on this, we will be doing her ride as well, a 93 coupe.Sorry its so long, thanks in advance.EJ

[Nismo_Freak]

Ross PistonsEagle RodsBalanced Crank

Balance the whole assembly when it is fully assembled.

S13/JWT cams(already have s13 cams)Polished Head750cc Injectors255lbs/hr walboro fp

S13 cams definately will give you a wide torque band. You will still see a drop off on the top end though, but horsepower should still remain reasonably flat. Given the numbers the KA has produced on stock cams, and you wanting something relatively street worthy I'd stick with the OEM cams out of simplicity.

Ditch the Walbro pump, it won't support 450whp very well. Get your hands on a Z32 TT pump. It will supply a more consistant flow of fuel due to it being physically twice as large. It also will have no issues supplying the correct fuel pressure, which is where the Walbro lacks.

I'd also go with a top feed fuel rail and 72# injectors, the added flow rate of the rail is just one more thing out of the way. Run an Aeromotive FPR with a 1:1 ratio, I'd suggest AN fittings and lines throughout the system as it's safer and easier to deal with later. Aeromotive also makes inline filters that can be used in conjunction with high flow setups.

?kind FMIC?kind Downpipehks bov (ss)?brand turbo manifold

I would go with a reputable core, the Ebay cores tend to look pretty crappy. For this I would suggest a Garrett GT intercooler, with 2.5" inlets and piping in a moderate sizing.

HKS BOV's work well, pull out the purple insert so you don't have that stupid whistle.

For 450whp I would look into a Full Race manifold. If it's a little more than you would like to spend I know Phoenix turbo has a manifold that is available that is a little cheaper and looks alright. Log manifold is not acceptable at 450whp IMO.

I would go with a custom V-band style downpipe, make sure to order the V-band option on the turbocharger.

Don't forget to budget for turbo lines as well.

Dual valve springs?Titanium Retainers?Bigger Radiator w/dual electic fansLightweight pulleys?kind Ignition system

Valve springs aren't required, especially dual valvesprings. Titanium retainers are nice but typically are reserved for higher revving engines to reduce valve float. Not really necessary with the S13 cams, money is better spent elsewhere.

Radiator, I would buy a dual pass C&R radiator with a single FAL 150 fan. Dual fan setups are for FWD cars with no room.

Lightweight pulleys are nice but not necessary. If you value engine response you are better off spending your money on the flywheel.

Ignition system can be beefed up with a MSD unit. I'd suggest it if you are wanting that kind of power. The stock stuff is decent but has issues with blowing out spark on the top end from what I've read with good power KA-T's. FWIW, I would run one on my car.

Standalone/JWT ECU?heard alot of good things from precision,ihi turbos,Tial wastegate

Standalone, JWT is not an option at 450whp IMO. Duy is running an Autech which is a nice unit, it's also pricey. If I was gonna spend my money I'd buy an AEM which has proven itself on numerous occassions.

Precision has a nice turbo line up. The SC61 is a highely used turbo for 500+whp, however I feel at 450whp it's a bit overkill. There are tons of options out there, I think the GT30R is nicely suited for a KA-T.

Tial is the only wastegate I would spend money on.

[BlackKat]

the end.....lol, thanks alot, i appreciate all of that info, one question, about the turbo itself, you said the gt30r, who makes the turbo, how can i find it and the race manifold, how is the tec3 for standalone?i guess that was more than one question. How is the j30lsd? thanks alot

[crzycav86]

I hope you've got plenty of money for the project..

The j30 vlsd is just fine for straight line acceleration. The vlsd works great for daily driving. If you plan on doing any grip or drift, you might wanna buy a clutch-type. But definitely get some kind of lsd.

[Nismo_Freak]

the end.....lol, thanks alot, i appreciate all of that info, one question, about the turbo itself, you said the gt30r, who makes the turbo, how can i find it and the race manifold, how is the tec3 for standalone?i guess that was more than one question. How is the j30lsd? thanks alot

I would suggest AEM for engine management.

Even if I had a TEC3 setup now I would trade. Not a big fan of it.

ww.fullrace.com or something like that... search full race manifold

GT30R is built by Garrett, you can buy it at any Garrett turbo supplier.

[Checkered-Member]

I would like the engine to rev a bit further than 6500rpm, how much can i push it or what will i need to get it to say 7500 maybe 8000 rpm?

if you want a high revving engine with no torque, buy a Honda

[SlIp'n'sLiDe]

i want some of this guys $$$

[klattr1]

good custom short runner intake manifold and some cams for the motor along with a bigger turbo and 7500 rpm redline could be needed.

[BlackKat]

right now, im going to piece together this turbo kit, since i will be working on the body while i do this, rims, paint, etc. So im just going to get everything piece by piece and then install it all at the same time. This will take me a couple of months to put together, so im hoping by christmas, ill be tearing up cobras and z06s. Thanks alot guys, the whole time my car will be down and appart, ill be in a liter bike im planning on getting soon, and hope to beat the bike with the s14 when its done. I can dream cant I?

[chad_KAT]

ZOMFG ARE YOU YELLING AT US >!>!!>>!>!>!

[Henry G]

so im hoping by christmas, ill be tearing up cobras and z06s.

Good luck with this.

[BlackKat]

what can i do to have my car redline at 7k rpm instead of 6500 with this turbo setup? 93 octane is available to me here in texas, how much more could i get with 110 race fuel? i could probably get a couple of gallons for those especially 'fun' days, hehehe. Where would i expect full boost at with the garett gt30 turbo and about what whp? should i do anything to the ka transmission to keep it alive through all of this? Oh, i have a hks super dragger 2.5 exhaust, i should probably go with a 3', i like the tanabe super racing medallion, just the way it looks, any suggestions? should i do, downpipe, straight pipe, gutted/no cat, exhaust? thanks in advance

[Nismo_Freak]

what can i do to have my car redline at 7k rpm instead of 6500 with this turbo setup? 93 octane is available to me here in texas, how much more could i get with 110 race fuel? i could probably get a couple of gallons for those especially 'fun' days, hehehe. Where would i expect full boost at with the garett gt30 turbo and about what whp? should i do anything to the ka transmission to keep it alive through all of this? Oh, i have a hks super dragger 2.5 exhaust, i should probably go with a 3', i like the tanabe super racing medallion, just the way it looks, any suggestions? should i do, downpipe, straight pipe, gutted/no cat, exhaust? thanks in advance

Octane and RPM have very little to do with each other.

At 93 octane you will do fine depending on your tune with 350 - 370whp

You need a 3" full exhaust with no cat.

GT30R in a normal A/R will spool around 3500 RPM in a KA-T or so, positive boost pressure could be seen lower in the RPM in the higher gears.

7000 RPM is perfectly suitable for a stock KA24DE, I would personally change out the valve springs as my old engine did seem to develop some float around 6700 RPM.

If you are building this engine, you can do 7500 pretty reliably if you mind your grams. Even 8000 RPM could be done if need be, but you will be increasing fatigue on the parts exponentially. While that 500 RPM doesn't look much as a number, it certainly is a good amount of physical force.