rx7london

hi ive got a 92 third gen rx7 its had a single turbo conversion with ex wastgate and big straight though pipe with no cat not shore what turbo it is i was told it was some kind of to4 its also got a ported engine with 3mm seals also not shore how much its been ported as i bought the car as it is.
its also got a apexi fc ecu and com and aquamist water injection and a big stock mount trust intercooler.
its was mapped at 0.9 bar as thats the most boast i can run on my fueling as its still stock injectors.
and it hit 360hp at the wheels on a dyno dynamics rollers in not that happy with that as the car is so laggy and dont come on full boast to 5500rpm.
i plan to buy the 1600cc secondery injecters and feul rail and keep my stock 550 primarys then go for a bigger roller bearing turbo but not shore what turbo to go for as theres so many different types my aim is to reach 450rwhp at around a 14-16 psi on pump gas as its a everyday road car trying to keep lag down as much as possible but i no im gonna need a big turbo for that hp wondered if any of you guys had any advice for me on the turbo and also does the fueling sound ok
i also wondered what kind of relibility can i expext at that hp.
thanks again.

fastcarfreak

greddy t88, hks t51 kai, or gt42 should do the trick with good tuning.

Zero R

iTrader: (1)

http://www.nopistons.com/forums/inde...howtopic=59789

Not big not laggy should be everything your looking for.

-S-

rx7london

thanks
what kind of lag can i expext with a turbo that size?

rx7london

thanks mr zero but that link dont work

BNA_ELLIS

What kind od dyno wa sthat on as in the UK he will be getting it mapped on a dyno dynamics so not likely to read as high as dyno jetc or mustang?

BNA_ELLIS

What size a/r do you have on your turbo? Sounds like it needs to be tuned better.
My t51 hits full boost same time as you ?

Old Slow Coach

Here is what Zero R probably meant to post:

https://www.rx7club.com/group-buy-center-69/gt35rs-now-available-478348/

rx7london

i have no idea what size the a/r is i have to look in to that ive not long had it tuned by reworx same place you got yours tuned it was 360hp at the wheels which worked out 427 at the flywheel do you no how accurrate there rollers are Compared to a dynopack thanks

rx7london

thanks looks good any idea what it costs.

Broken09

iTrader: (1)

drop em an email: info@a-spectuning.com

BNA_ELLIS

comparisons have been done and they are very close. The main difference is the dynopacks read power at the hubs not the wheels. So a dynapack showing say 450 at the hubs it would be around 415 at the rear wheels.

rx7london

thanks your set up looks like something im aiming for how reliable is the car at that kind of hp if its well looked after how many miles could you expect from your engine?

Mr rx-7 tt

iTrader: (5)

Here:

"We did a quick run on the dyno with our GT35RS. We did this on the same car as the first 35RT4(broken09s) car. No changes were made just the turbo an a slight fattening of the maps to account for the better flowing turbo. That car did 436whp@16.3(?)lbs this time around it did 448.29@14lbs This is with 11.2 A/fs and pump gas.The run was actually on 13psi as 99% of the datalog was at 13psi but the datalog did spike at 14psi for just a split second, so we'll call it a 14psi run. 12whp more, 3lbs less boost. Same car, same mods, same tune, same dyno. All corrected numbers. So you basically have a 450+whp car at below 1bar with 35R type response on a safe tune on pump gas!!! Can't wait to turn it up and see how she does."

Turbo II-FB

62-1at like 18 psi