turbochargers

[gfhteen]

i woul just like to know what everyones personal favorite turbos are for the sr and ka.

[Foxcolt]

SR: HKS3037 HKS2835 HKS2530(40)

KA: T04E

[Jeff240sx]

The T04E is quite a large turbo, and not many people are using one on a KA. Many people opt for the t3/4e hybrid for spool time. I think BoostedS14 is still using the t3/4e, and he's making nasty hp. I can't really think of any others that are off the top of my head, but there are many more people running the hybrid than the full t4e.
But.. I am running one (T4E).
-Jeff

[Foxcolt]

Originally posted by Jeff240sx
The T04E is quite a large turbo, and not many people are using one on a KA. Many people opt for the t3/4e hybrid for spool time. I think BoostedS14 is still using the t3/4e, and he's making nasty hp. I can't really think of any others that are off the top of my head, but there are many more people running the hybrid than the full t4e.
But.. I am running one (T4E).
-Jeff

He said SR and KA.

Since I have absolutly zero experience with turboing ka's I wrote the first one that came to my head

[gfhteen]

what about favorite drag turbos. do u want a turbo as big as u can get or do u want something smaller to spool up real fast.
are bigger turbos like t67, t78, t88, gt3037, gt2835 any good for drags?

[Jeff240sx]

Foxcolt: I wasn't trying to make you feel bad or anything, I totally understand trying to help based on limited knowledge.
Anyway, I was merely suggest that he not get a t4e.
Also.. for drag-racing, I'm really not so sure that a huge turbo is the way to go, unless you plan on using nitrous oxide to spool it. What good is a T-88 that spools up at 5500rpm? 1000rpm of sick nasty horsepower. But, Duy was running a t76(?, t61?.. something big) with a 150shot for spool. That was a drag 240sx.
-Jeff

[Kreator]

SR <- no clue
KA - T3 60 is what i would get (more for daily driving than drag racing though).

[Nismo241]

I'd use a Turbonetics T72 for an SR. But for a KA for daily driving I wouldn't see the point to have anything more than a t3/t4. I mean it's not like you can really use the power(legally that is). For drag on the KA....Wouldn't know, I personally wouldn't use the KA for a drag motor. I know they have done good things with them but I'm not into spending money on rebuilding motors that have little R&D behind them. What I mean by that is that the SR has probably every set up ran on it known to man, as the KA is limited because it's not the motor of choice for many.

[Jeff240sx]

Nismo241... I'd really have to disagree with you, and say that you have made that statement in ignorance.
Engines can't be built with little R&D. Also, ignorantly I will say that the fastest SR built by a person (not corporation) is/was Greaser's, at the low-mid 11's. The fastest KA built by a person was 10.41. Also, on this board, Greaser with the SR is the fastest, followed by BoostedS14 (.2 seconds behind) and PSI240SX (sold car)(.23 seconds behind Greaser) with their KA motors. I'm not starting a war, but you don't know the foundation of the KA and what you have implied in that statement.
-Jeff

[Nismo241]

Read my post a little better smart guy, I said that was my personal preference. I didn't say it couldn't be done and I didn't say that the SR was faster than the KA. And you are wrong about the SR only running low 11's built by man. There is a guy with a S15 in australia that put down 593 rwhp. I can't remember what it ran but I know it was faster than a low 11. There was an SE-R that ran a 9. something and one that I watched run a 10.34. I'd say that your post wass said with more ignorance than mine.

[Phlip]

Originally posted by Jeff240sx
Also.. for drag-racing, I'm really not so sure that a huge turbo is the way to go, unless you plan on using nitrous oxide to spool it. What good is a T-88 that spools up at 5500rpm? 1000rpm of sick nasty horsepower. But, Duy was running a t76(?, t61?.. something big) with a 150shot for spool. That was a drag 240sx.
-Jeff

Keep in mind also, that using nitrous for spool time only will work to a point... If the turbo is so ungodly large that it isn't producing until the upper RPM range, what good is it? We all know that the KA falls off (even turbo'd) after like 5500 so wouldn't we all do best to tailor the charactersitics of the turbo to accomodate this?

[Jeff240sx]

Wow guy!
I really wasn't trying to be an ass in my post, but apparently you didn't respond in kind. Also, I should have put the "In America" clause in there, because it's kind of hard to have huge power KA's in places that they don't exist. And I did read your post. "I'm not into spending money on rebuilding motors that have little R&D behind them" There's not much to infer in that one.. it's pretty well stated.
I don't wanna start wars, just trying to let you know, the KA isn't a bad engine. If it's not your preference, that's cool. The SR isn't my preference. But I know a lot about the SR, and have a lot of respect to it. It's a very technological engine (especially when it was built). But, the KA isn't a hunk of crap with little R&D, cuz technically, it was a successor to the sr, and I'm pretty sure that Nissan intended it to be turbo'd. It has a lot of things to make it turbo-friendly, like shotpeened rods that handle 350rwhp+, a forged crank that is double girdle'd, under-piston oil-squirters (found on the VG30dett, and possibly the sr, but I don't know), ect.
-Jeff

[Jeff240sx]

Originally posted by PHLIP
Keep in mind also, that using nitrous for spool time only will work to a point... If the turbo is so ungodly large that it isn't producing until the upper RPM range, what good is it? We all know that the KA falls off (even turbo'd) after like 5500 so wouldn't we all do best to tailor the charactersitics of the turbo to accomodate this?

The powerband on the KA is regulated largely by the camshafts that it uses. This is proven by the s13 motors redlining at 6700, and most of that is useful revs. The s14 with milder cams redlines at 6500, and starts to take a crap at 5700. Once you swap out cams, you can have power all the way to 7000 and still be pulling.
As far as the turbo sizing, you're right.
-Jeff

[Phlip]

Originally posted by Jeff240sx
Wow guy!
I really wasn't trying to be an ass in my post, but apparently you didn't respond in kind. Also, I should have put the "In America" clause in there, because it's kind of hard to have huge power KA's in places that they don't exist. And I did read your post. "I'm not into spending money on rebuilding motors that have little R&D behind them" There's not much to infer in that one.. it's pretty well stated.
I don't wanna start wars, just trying to let you know, the KA isn't a bad engine. If it's not your preference, that's cool. The SR isn't my preference. But I know a lot about the SR, and have a lot of respect to it. It's a very technological engine (especially when it was built). But, the KA isn't a hunk of crap with little R&D, cuz technically, it was a successor to the sr, and I'm pretty sure that Nissan intended it to be turbo'd. It has a lot of things to make it turbo-friendly, like shotpeened rods that handle 350rwhp+, a forged crank that is double girdle'd, under-piston oil-squirters (found on the VG30dett, and possibly the sr, but I don't know), ect.
-Jeff

... And about the nitrous?

[Jeff240sx]

Originally posted by PHLIP
... And about the nitrous?

What about it?
-Jeff

[Phlip]

Never mind, i see it now

[DarkRaptor42]

Originally posted by Kreator
SR <- no clue
KA - T3 60 is what i would get (more for daily driving than drag racing though).

im in on this one too, very little lag

[S13CRAVE]

sure, SR's and KA-T's are nice, but what about the CA?? I have read that the ideal turbo for the CA is a GReddy TD-06 19C..... oh wait....I'll have one of those next week, hehe . It easily makes 350hp at the wheels. (sorry to interupt but I had to stick up for my CA)

~Ian

[Foxcolt]

Originally posted by S13CRAVE
sure, SR's and KA-T's are nice, but what about the CA?? I have read that the ideal turbo for the CA is a GReddy TD-06 19C..... oh wait....I'll have one of those next week, hehe . It easily makes 350hp at the wheels. (sorry to interupt but I had to stick up for my CA)

~Ian

Mini RB's. So cool

The TD-06 is a good turbo for SR's as well. Decent spool and great power.

A guy in my area "claims" 400hp on his fastback s13SR and TD-06.

[greaser@work]

Originally posted by Jeff240sx
Nismo241... I'd really have to disagree with you, and say that you have made that statement in ignorance.
Engines can't be built with little R&D. Also, ignorantly I will say that the fastest SR built by a person (not corporation) is/was Greaser's, at the low-mid 11's. The fastest KA built by a person was 10.41. Also, on this board, Greaser with the SR is the fastest, followed by BoostedS14 (.2 seconds behind) and PSI240SX (sold car)(.23 seconds behind Greaser) with their KA motors. I'm not starting a war, but you don't know the foundation of the KA and what you have implied in that statement.
-Jeff

i'll agree with jeff. me and dennis had a comparison a while back. after reviewing alot of information, i slapped my forehead and thought "i shoulda kept the KA!"

i still hold to that statement. but we'll see how the new setup goes.

[DarkRaptor42]

KA all the way. Especially if your going to rebuild an SR, seems really pointless. When you start to rebuild engines, they all become about the same anways.

[Kreator]

Not to start arguments again, but the one big flaw i see that makes me turn away from making my ka hit big numbers is the stroke..... but then sr doesn't attract me that much either as a real performer (hp wise)....mmmmm...v8.....mmmmmmm Gotta save up for a C3 vette

[greaser@work]

The long stroke is what makes the KA a hard hitter. aka torque monster. it does not limit the motor by any means for a street car. ~~~under 7,000rpm.

[Kreator]

Originally posted by greaser@work
The long stroke is what makes the KA a hard hitter. aka torque monster. it does not limit the motor by any means for a street car. ~~~under 7,000rpm.

But then doesn't it also imply alot of workload on the rods?

[greaser@work]

it does, however; how many times have you seen a bent or broken rod from an over-rev? or even just WEARING the motor out with excessive side load(which is what a long stroke motor does) this means excessive blowby and low compression across all 4. no mechanical failure.

i've only seen one case. the rest were failures for various reasons. I actually WORE out my last SR after 3 years of drag racing at various power levels.

my current SR i'm trying to make it last a season at 400rwhp exactly. no more, no less.

[Kreator]

Originally posted by greaser@work
it does, however; how many times have you seen a bent or broken rod from an over-rev? or even just WEARING the motor out with excessive side load(which is what a long stroke motor does) this means excessive blowby and low compression across all 4. no mechanical failure.

i've only seen one case. the rest were failures for various reasons. I actually WORE out my last SR after 3 years of drag racing at various power levels.

my current SR i'm trying to make it last a season at 400rwhp exactly. no more, no less.

Well yeah, i haven't heard of a single rebuilt ka with a bent rod... so i guess it won't really play a major role. But hten i remembered all the parts that are not made for the KA to actually keep at those levels (duy's gasket problems for example). And then the other hting that keeps bothering me. 400hp out of a ka/sr is like top of achievement, while the same hp levels are expected from an average built v8.... I'm thinking of more 300-320hp out of KA(if i ever rebuild my block) and make it a track car... and something crazy (tt v8 vette hehe) for fun....

PS Nice job you got there lol. Actually i got same exact one: 3/4 of my posts here are from work

[Greaser]

400hp out of a V8 in my point of the game is a waste of money.

my next car will be a V8 with turbos and 700rwhp @5psi

400hp out of any 4cyl is a major achievment in spending money, not in knowledge. i have a setup in my head that can make ALOT of hp but i donnt have the money to build it.

its near the setup i'm building now.....13psi i'm hoping i'll get 400rwhp. i had 392 with 15psi so the new setup may get me more if i figure it right. it can either fall on its face or make the power. the motor chooses, not me. now figure if i ran that 30-40psi that racers run......yeah BIG power.

[ca18det]

i prefer my t04r on my ca. yeah its a huge turbo and "laggy" as some might say but i ont care. i will get full boost by 5500 rpm but with a 9500 redline i still have tons of useable powerband. also the anti lag feature on the sds is nice for launching. i say design teh turbo that best meets your goals and driving style.