Just wondering who is running the most boost? Either TII or third gen.

 

17-22 psi w/ T60-1 .70 comp. Q trim & 1.00 A/R, 1680cc injectors x 4 ran by a Wolf EMS stand alone...

So I guess I don't run the most boost....

 

Brad, care to post a dyno sheet? Thanks Carl

 

Well I think RICE RACING is up near 30 psi....

 

after im tuned 25ish

 

Ralph at Xcessive runs in the 30ish area. Don't quote me on this, but I think its 32 or 34 psi. But I could be wrong. CJ

 

actually on his website he says 22psi, i know that is kind of old, but I don't think he's at 30 yet.

 

Not yet but will be @ 43.5psi real soon

 

Been there already!

499rwhp@15psi
648rwhp@25psi
?98rwhp@?psi


crispeed
87 Rx-7 TII
9.204@150.47mph
2600lbs
un-tubbed

 

im just wondering what you guy's engine setups are that hold up to over 30psi?

 

On an idealized scale 43.5psi should equate to around 850rwhp on 43.5psi going of your other number chris

But by using the question mark on the psi? and guessing that the ?98rwhp is probably 798rwhp = 38psi boost ??? That is purley guess work becasue if your hardware has changed from the 15psi & 25psi figures then it is imposible to use this method (or if the basic hardware will not support the higher pressure ratios "too small compressor map & massive increase in exhaust housing/turbine/header induced back pressure" will all result in lower than expected increases due to loss of Ve% of the engine turbo combination @ that pressure level.)

I am hoping for .....

?05rwhp @ ??psi

 

That was on his old turbo, the t04x^2. He's said that one would'nt push more than 27psi BTW: The website is extremely old. CJ

 

anyone thought of running staged turbos? for crazy pressure ratios.

 

Methanol

 

In2Twins:

I haven't dyno'd it yet and I've done all tuning while driving it. Keep in mind 22psi is on 92 octane fuel....If I ran C-116 I could up the timing and run close to 30psi, but then my T60-1 would be on deaths door at that point....Not to mention 255's aren't gonna stick with 30psi, so I figure less is more in my case....Everyones got there own thang...

ChrisSpeeds car is the **** in my opinion....What an amazing time for a stock chassis RX-7, but then he's running alcohol....Big difference too... anyway, when I get back from Shitcago I'll post the dyno times.....

Any bets on what it will be @ 22psi?

 

Wow.
You must really have to retard the timing to push that much on 92...

 

im tuned to 28 psi currently .....720 rwhp on c16
12A turbo no nitrous!!!!

 

and I'll say it again.....timing is everything....thats 80% of the tuning battle...

Brad

 

Dear god! What is your porting like, and what advance to you run at tq peak and power peak? What are your intake temps at that boost! I worry for you, although not nearly so much since your turbo selection (choice of trims, housings, etc) is very nice. I had planned to run a similar combo with 1.15 Q, and .7 62-1 comp a long time ago, but I got poor.

 

BTW, depending on your porting, manifold, exhaust, etc, I will say around 500rwhp @ 22psi.

 

Gotta love water to air IC's and bridgeports

 

Relvinnian: Fear not my firend j/k BTW: the car is Vette silver....big difference

My intake temps are very cool and range from 30C-50C on an 80 deg F day...

I won't run 22psi that much or 20psi at that.....My porting and engine was built by the all mighty Kevin Wyum ASP racing and myself up here in Minne....The porting is a somewhat large single port and nothing was really done to the motor except the porting...

Alf/soul 7 ran 25psi on a simular T04S turbo using an S5 motor and had 500 plus hp....before he bridge'd it.... I have a friend from Puerto Rico who is a Wolf EMS tuning god, so I can't take all the credit.... my point????? 22psi isn't sh*t....

 

yeah,,, uh my boost is stock, so 8psi i guess. I think i win!!! Anyone running lower? i think ill just weld the wastegate and connect a fuel cut def. and see what happens. J/k...

 

I've ran 28lbs of boost. I know Demetrios and Ray Wilson have run over 30psi. Hell, if you add the stress of N2o, its safe to say racers of pushed upwards of 40psi. Its all about winning.

 

Ernie, I thought you said it was all about tuning