Anyone know what the ideal boost is for the JWT 530 turbo setup?

Clairification: [CP Pistons, Carrillo rods, ARP bolts, Tomei cam, big radiator........]

 

um.. wut?

 

76 psi around 349 whp

 

I heard 58 psi will yield 361whp

 

lol 3k

 

7 on a stock motor, 8 with a good tune. I wouldn't encourage doing more than that unless you are running a little bit of meth, or higher octane fuel.

Invest in a good boost gauge.

 

Someone post the compressor map for a real answer.

 

Ask & receive: GT25 turbo; http://www.turbobygarrett.com/turbob...R_466541_4.htm

 

Thank you Robert_K. Peak efficiency (center island) extends through to a 2.0 pressure ratio. So the turbos are optimal through about 15 psi. Not much more to be gained beyond that.

 

And for ***** & giggles: 700BB kit's GT2860RS (Disco Potato): http://www.turbobygarrett.com/turbob...S_739548_1.htm

 

i thought 1 Bar was 14.5 PSI.. so 2 bar would b 29 PSI

 

I think that side scale is barA not barG?? 2barA = 14.7psi

 

oh ok thanks for the clarification

 

Robert K, thanks for the charts/graphs...that is just what I was looking for...the 530's & the 700's. By the way where did you get this info?

OK, I saw the link, disregard the question. Thanks again.

 

Anybody does 500WHP with JWT 530bb Kits?
or what is the maximum WHP if you have internal mods - piston, rods, cams, fuel system, tuning etc..?
in what psi? 14 psi? or more?

 

We maxed one out at pump gas about 13-15psi range...curve looked pretty good. After that, we got a lot more trq, but crappy power curve.

As RCDash mention, this turbo is pretty tapped out beyond 15psi.....figure about 440-500whp dependending on the dyno used.

 

thanks for the info...you'll get your chance...proof of pudding wd my car soon'sh. Having custom Radiator tanks made by Buster in Hiram.
Rod

 

If the jwt 530bb kits Has 440WHP - 500WHP -
What do you think its drag time 1/4mile (400Meter) ? 12sec? 11.8sec?

 

With a Auto G35 Coupe and the JWT 530bb kit I pulled 350hp/350tq on a dynopack. Thats the twin turbo kit with just test pipes. I am pushing around 7.5psi. I only got a chance to run the 1/4 mile 3 times and my quickest time was 13.3 at 104mph. I am still using stock exhaust and stock motor. I am sure I could get mid 12s'ish. With a 350z 6 spd I would assume you would be able to break into the 11s. Atleast a really high 11 or really low 12, which I think is still pretty dam fast for such a entry level kit with no motor build. Hope my experiences help. Good luck with your build.

 

At 2230' DA I run 12.7 @ 112mph 2.09 60' with street tires and 6.8psi aprox 380whp or SAE corrected 397whp. At sea level(or elevations under 1000') with some drag radials and 440-500whp, low 11s should be possible.