hi guys. just want to share this with you all. i recieved an email from a friend/customer that I sold a custom manifold and to4b turbo package to for his fc3s. and this is the results from a dyno run he has emailed to me just to keep me posted on progress. i am very impressed, i hope he dosnt have a problem with me sharing this with you all.
the email wrote...

Yeh I'm pretty stoked with it. It was the 54mm TO4B running maximum of 14psi boost. The boost actually starts to drop slightly from about 5000rpm and it made the peak figure of 354.8 at the wheels at 6600rpm and 12psi boost. I suspect that the boost spike then drop off is due to my early model Greddy profec-b boost controller, might need to upgrade that at some stage.

I ended up cutting the original wastegate pipe off the manifold and having it remade in 60mm the same as the other pipes to suit my HKS 60mm wastegate.I also had all the flanges machined.

As far as other mods, it is mild ported,3mm apex seals, Hybrid front mount intercooler with 2.5" piping (seems to work bloody well for a $500 trade me special, highest intake temp during dyno run was 29 C!), microtec LTX8, 4 sard 700cc injectors, sard fuel reg, bosch intank 600hp pump twin plate clutch and light flywheel. Still running standard fuel lines etc.

I sent it for a dyno tune a few weeks ago when I got it going finally and it made 292hp on 12psi before cracking the rear plate! Makes very little sense to me or anyone that I have talked to for that power and boost. All I can put it down to is an existing undetected hairline crack. Of course this was a week before the south island champs so I did some late nights and replaced the broken plate to get it ready for the drags that ended up getting rained out! Had a minor overheating problem anyway so probably a good thing. Been waiting since then to get a custom radiator made which I finally got on Tuesday just in time to make my dyno appointment on Thursday. It was only really going back for some fine tuning and a maybe a couple of extra psi boost. I was thinking more like a 20hp or so gain so I was blown away by gaing 62! It also produced a pretty constant 280-300 ft-lbs of torque from about 4500rpm through to redline. I am told this is a bonus as they usually peak then drop off quite quickly in the higher rpm.
I may look at going to a larger turbo at some stage so I will keep an eye on your listings. I think I fancy a Turbonetics 62-1 as the next upgrade though. Not to mention that I'm pretty bloody happy with the one I have at the moment! I am taking it out to a drag meeting next weekend, I'll let you know how it goes.

 

so the stuff at the bottom is that your car, or his? what are the full specs on his to4? , exhasut wheel "O", "P", or "Q" houseing, and what ex A/R?

Kenn

 

the signiture at the bottom is my car not his. the turbo he was using is a to4b 55mm inducer .6ar compressor with p trim turbine using 1.15ar divided tang. the manifold i made him uses long runner aprox 11" almost tuned length short by about 1/2" and they feature 3" long straights before there first bend after the exhaust ports. im thinking this is what help mantain the tourque at the higher rpm

 

nice i hoping to get the same out of my to4e 1.32a/r .7 front and 66mm t66 front wheel my mods are basically the same but ive got a big extend port

 

ohh i think you could achieve alot more with that turbo spec

 

im not really sure what power to expect at what boost level ill be running a max of 18psi through it i want to at least hit the 400rwhp mark then ill be happy.

madaz

 

great results. nice for 12psi!

what compression? 8.5 or 9:1?
wheres peak hp, and do you have the dyno graph to post?

-Ben Martin

 

actualy i dont know what generation s4 or s5 so coukd be ether. i think he said 6800 peak power.
I will ask him for some dyno print outs. he might even be a member of the rx7club, i check it out.

 

wow good news! i have the same turbo and some nice streetporting on the intake and exhaust. 9.0:1 rotors.

 

I'm supposed to have a street ported engine, and I also have full exhaust, front-mount, requisite fuel mods and a standalone EMS. My only concern is that I have a turbo with a .60 cold side, and I'm unsure of what the hotside is. It's a Garrett, that's all I know...

 

pictures?