Jpi Built Is300 459whp @18 Psi

[JPI]

Congrats to Greg Brown from South Lake, TX. Vehicle makes 459whp @ 18 psi. Here are the specs on it

JPI Turbo kit with 3" piping

T70 Turbo

440cc injectors

W58 tranny

RPS stage clutch

TT short block

ARP head studs

Custom JPI Head gasket

Modified stock flywheel

Custom JPI fuel rail and lines

PCS XFC with walbro in line pump and some special sauces

http://i135.photobucket.com/albums/q...g?t=1178054013

http://i135.photobucket.com/albums/q...g?t=1178054105

http://i135.photobucket.com/albums/q...g?t=1178054164

http://i135.photobucket.com/albums/q...g?t....g?t=1178054688

This is on the stock W58 tranny. Congrats to Greg again.

JPI

[JIBBBY]

That must be one fast IS300... I would love to know what it can do in the quarter mile?

[menappi]

Links don't seem to work?

[92Lex]

Were these numbers produced on stock internals? What dyno was it tested on? MAP, blow through or draw through set-up? Was the stock ECU remapped or was it tuned with a stand-alone system?

[92Lex]

Not to flame you but those #'s seem low for that amount of boost. Don't get me wrong, those are great whp #'s!! I'm just really curious as to what octane yieled those #'s @ that level of boost...that car should be in the 500's

[JPI]

Not to flame you but those #'s seem low for that amount of boost. Don't get me wrong, those are great whp #'s!! I'm just really curious as to what octane yieled those #'s @ that level of boost...that car should be in the 500's

This is with stock timing. There are a lot more of tuning left but it's pointless for to make more and the tranny will let go.

JPI

[JIBBBY]

I wonder what the Horse power holding limit is with the W58 transmission... I wasn't aware that it could handle that kind of power....

[smooth1]

So any updates on this project lately??

18 psi! man thats crapton of boost!!! have you dyno'd the car? you should post the dyno sheet so we can see it. I would like to see the power curve and how the torque is hitting also.

have you had any tuning issues to deal with? are you having any issues with planting all that power on the ground? I would really like to know, I was thinking about going with a centrifugal supercharger on mine, so I would like to hear you turbo experience to compare with.