Highest horsepower RB25 stateside?

[eh?]

Were you running pump or race gas? You can buy a walbro external gsl 392 and increase your fuel capacity easily.

[240slidekat]

i would of been up there if i kept my t72 turbo but i couldnt deal with lag anymore. we should start a sticky list or worksheet of rb powered dyno numbers.

[RBTALLY]

600+ at only 18psi im assuming nitrous was used?

no nitrous with that set up but it does have it now... still stock cams and orginal pistons and rings... the nitrous is only a 75 shot and I backed the boost down 2 #s the transmition is a GM 2 speed powerglide with a 4500rpm stall in it. anyone want to buy it?

[RBTALLY]

[StricNyne]

Mike Ferrea made 1000hp in a RB26 with Rb28 stroker on a r33 gtr its the DSport RH9 Skyline its got some HUGE twins on that thing and god damn nates car is SICK!!

...little fail on my part i didnt see rb25...

[eh?]

i would of been up there if i kept my t72 turbo but i couldnt deal with lag anymore. we should start a sticky list or worksheet of rb powered dyno numbers.

Should have gotten a pte 6765 like I just did The BB version spools better than a GT35r from what I've seen.

[flatrate]

no nitrous with that set up but it does have it now... still stock cams and orginal pistons and rings... the nitrous is only a 75 shot and I backed the boost down 2 #s the transmition is a GM 2 speed powerglide with a 4500rpm stall in it. anyone want to buy it?

Head ported? you must be using a 67mm+ size turbo? reguardless sick power...

Care to post your ignition map?

[WhatsADSM]

Should have gotten a pte 6765 like I just did The BB version spools better than a GT35r from what I've seen.

I doubt that.

I am almost surely getting a 6262 in a few months.... and from everything I have seen the BB 6262 spools a *hint* slower than a 35r. The 6765 DEFINITELY spools slower than a 6262.

FWIW, I'm not even dead set on the 6262 and may even get the 5857... But then again I like having a fast car that actually has a powerband as opposed to big numbers.

IMHO the 6262 is probably more turbo than basically any non-drag-only RB car would need. People have put down almost 800whp on a 6262.

[RBTALLY]

Head ported? you must be using a 67mm+ size turbo? reguardless sick power...

Care to post your ignition map?

no porting, the only thing that did not come on that motor from the factory is the Tomia head gasket.... it will take me a few days to get them over from my laptop but if u want i can put them up both fuel and ignition . there is nothing top secret about that stuff just a bunch of opinions about what is write and wrong

[otightitzjim]

Were you running pump or race gas? You can buy a walbro external gsl 392 and increase your fuel capacity easily.

i was running pump gas.

Also, btw, i have a snow performance meth kit hooked up. I just never got to tune with it because i need the datalog kit for my power fc. So i can change maps if i ever ran out of meth.

I can just throw that external pump inline with my regular system?
Modified by otightitzjim at 11:04 AM 2/19/2010

[flatrate]

no porting, the only thing that did not come on that motor from the factory is the Tomia head gasket.... it will take me a few days to get them over from my laptop but if u want i can put them up both fuel and ignition . there is nothing top secret about that stuff just a bunch of opinions about what is write and wrong

Yeah id like to take a look at your ignition map more than anything else i just tuned my car on the dyno yesterday didnt really make close to the power i wanted, my ignition numbers seem WAY lower like 6-8 degrees lower than others, but i wasnt gaining anything from timing adjustments i seemed to reach MBT way early...thanks

I doubt that.

I am almost surely getting a 6262 in a few months.... and from everything I have seen the BB 6262 spools a *hint* slower than a 35r. The 6765 DEFINITELY spools slower than a 6262.

FWIW, I'm not even dead set on the 6262 and may even get the 5857... But then again I like having a fast car that actually has a powerband as opposed to big numbers.

IMHO the 6262 is probably more turbo than basically any non-drag-only RB car would need. People have put down almost 800whp on a 6262.

i had a a 6265 on my honda it previously had a GT35R on it both .82's the 6265 only spooled about 150RPM slower than the 35R a 6262 would probably be the same or slightly better than a 35R.. Mind you my 6265 was a journal bearing turbo as well

people that have made 800whp on tha turbo are pushing it beyound believe and have a seriously built motor i dought an RB is close to efficent enough to utilize what its being fed that well DSM's are a whole nother ball game

[WhatsADSM]

i had a a 6265 on my honda it previously had a GT35R on it both .82's the 6265 only spooled about 150RPM slower than the 35R a 6262 would probably be the same or slightly better than a 35R.. Mind you my 6265 was a journal bearing turbo as well

people that have made 800whp on tha turbo are pushing it beyound believe and have a seriously built motor i dought an RB is close to efficent enough to utilize what its being fed that well DSM's are a whole nother ball game

I am going straight off of what the vendors have told me (that it would spool a hint slower). Fact of the the matter is the 6262 is close to a 35r. I was told it was a hint slower, but even if it hint faster we are splitting hairs. It is a known fact that the 6765 spools significantly slower than a 6262. Period, end of story. To say the 6765 will spool like a 35r is untrue.

As for the 800whp thing. I agree they are being pushed beyond their designed range. That's about all I agree on. Even running around on 700whp, is more than useful for anything besides a well prepped drag strip, with a nice slick, and solid drivetrain. People have this idea that they should get the largest turbo they possibly can.. My point is it shouldn't be about huge turbos, peaky dyno numbers or any of that. A nice solid flat powerband is what makes a car not only fast, but easy to drive fast, and also fun.

The turbo is the primary indicator for its flow and yes it most certainly can make similar numbers to the DSM. While the 4g63 may flow well, the RB is bigger, and revs well. Ironically enough look at some of the people in this thread, making well over 500 on RB25s on fairly moderate boost levels... sure doesn't make the 4g63 look like anything special. I am not saying it will make the 800whp at the same PR, but rest assured it can make similar numbers at *some* PR (hell it could be lower).

[eh?]

Sorry it was in fact a DBB 6262. Sorry to get certain individuals panties in a bunch.

Garrett DBB GT35R- Non-hta- Water cooled- 5-bolt housing- 0.63 A/R- Bullet style anti-surge comp housing

Precision Turbo & Engineering 6262- Billet compressor wheel- Air-cooled- V-band outlet housing 2.5"- 0.82 A/R- Tial-style anti-surge comp housing

And now for the dyno graph ovrelay of the 2 turbos: (solid = 6262 / dotted = 35R)



http://www.norcalevo.net/showthread.php?t=32993

Kill this thread please.

[flatrate]

I am going straight off of what the vendors have told me (that it would spool a hint slower). Fact of the the matter is the 6262 is close to a 35r. I was told it was a hint slower, but even if it hint faster we are splitting hairs. It is a known fact that the 6765 spools significantly slower than a 6262. Period, end of story. To say the 6765 will spool like a 35r is untrue.

As for the 800whp thing. I agree they are being pushed beyond their designed range. That's about all I agree on. Even running around on 700whp, is more than useful for anything besides a well prepped drag strip, with a nice slick, and solid drivetrain. People have this idea that they should get the largest turbo they possibly can.. My point is it shouldn't be about huge turbos, peaky dyno numbers or any of that. A nice solid flat powerband is what makes a car not only fast, but easy to drive fast, and also fun.

The turbo is the primary indicator for its flow and yes it most certainly can make similar numbers to the DSM. While the 4g63 may flow well, the RB is bigger, and revs well. Ironically enough look at some of the people in this thread, making well over 500 on RB25s on fairly moderate boost levels... sure doesn't make the 4g63 look like anything special. I am not saying it will make the 800whp at the same PR, but rest assured it can make similar numbers at *some* PR (hell it could be lower).

Didnt mean to ruffle your feathers there bud, but i dought it will spool any later than 400rpm or so the 6262 is a slightly faster spooling turbo due to the light weight of a billet compressor wheel the 6265 has a P trim exhuast wheel compared to the 35R's stage 5 that in it self is a HUGE difference the fact that they remained within 150RPM on my car is awesome... and the compressor has alot more in it compared to a 35R is there something im missing?

[WhatsADSM]

Didnt mean to ruffle your feathers there bud, but i dought it will spool any later than 400rpm or so the 6262 is a slightly faster spooling turbo due to the light weight of a billet compressor wheel the 6265 has a P trim exhuast wheel compared to the 35R's stage 5 that in it self is a HUGE difference the fact that they remained within 150RPM on my car is awesome... and the compressor has alot more in it compared to a 35R is there something im missing?

Yea I agree with that. I suspect that when I get my 6262 on, it will spool around 4000-4200 on my (relatively stock) rb26. Most 35rs will spool pretty similarly.

So actually the reason for PTEs "quick spooling" billets isn't related to the material much. It does make a difference but not much. In fact garret has a bunch of marketing data out there proving that changing a steel compressor to a billet compressor makes essentially no difference. The real secret behind the billet stuff is that the compressor blades are longer are more efficient for a wheel of the same diameter. That is what makes a turbo like the 6262 (with a 62mm compressor) spool like a 35r (which has a 61mm compressor), yet flow like a 67mm 40r!

Sorry it was in fact a DBB 6262. Sorry to get certain individuals panties in a bunch.

Garrett DBB GT35R- Non-hta- Water cooled- 5-bolt housing- 0.63 A/R- Bullet style anti-surge comp housing

Precision Turbo & Engineering 6262- Billet compressor wheel- Air-cooled- V-band outlet housing 2.5"- 0.82 A/R- Tial-style anti-surge comp housing

And now for the dyno graph ovrelay of the 2 turbos: (solid = 6262 / dotted = 35R)



http://www.norcalevo.net/showthread.php?t=32993

Kill this thread please.

I don't hate the 6262 at all. I wouldn't buy one if I didn't like it.Yea I've seen that dyno, also seen some where the 35r outspools it slightly. Like I said for all intents and purposes they spool the same.

I just wanted to clear up the incorrect data about the 6765. Didn't mean to get too worked up about it, just a pet peeve of mine because a lot of people will read stuff like a 6765 spooling as fast as a 35r and make an incorrect purchase. I'd rather not see blatantly incorrect information get passed on.

As for my other comments about the dynos, powerband, turbo size, etc. I agree it's not exactly on topic. My bad. Carry on.
Modified by WhatsADSM at 4:41 PM 2/19/2010

[RBTALLY]

if we want to have a talk about billet wheel vers cast I have tried them both on my outlaw radial car and the billet was way off in boost ane power I think that billet wheel 114mm turbo cost me around 6 grand . I tried it a two races and half way through the second i put on my old backup 106 mm and the car was back to running 5.0s in the 1/8th. that week i sent the 114 back and had them put a cast wheel in it. no more billet wheels for me.