How much hp/tq are you putting into that t-5?

Have you had any problems with it?

Thanks!

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http://kiztope.50megs.com

92 Rs 3.1/T-5
Its slowly but surely coming along....

AIM : Theonekiztope
ICQ: 8787542
Planetarion: 3GFB kiztope of kiztopia-Camera-92RS-A (33:6:14)

"If it can be better than it is, make it so!" Leon Calrinsky (00)

 

I didn't think Willie ran a T-5.
Last time i saw his website it was a built 700r4. This was a long time ago though.

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'88 RS (originally 2.8)
New 350, .040 over, ported vette L98s, ported stock tpi.
Old 305 injectors & chip
TES headers, 3.73 gears, 700r4.
Best with 2.8-17.4@77mph
Best with 305-15.0@93mph
Best with 356-13.7@101mph
(Damn the 2.8!)

 

Willie is using a 700R4.

Tim Burgess is in the 12s with his stock T5, but I don't know his numbers.

 

Dang, I could have sworn it was a t-5 ....
Hopefully Tim will look at this then!

 

I emailed Tim and asked him to check this thread out. He may not get it until Monday though.

 

Willie is using one of Dana's (Probuilt)
700R4s, as Dirk has indicated. I'm using the stock World Class T5 in my '92 Z28. The car runs in the low 12's with a 305 & 90 hp nitrous & high 12's on the motor, which has 130K miles on the '92 short block. Here's some numbers from my best run with the nitrous to show what the transmission has been up against & survived - it was at Speed World Motorplex, back in October '99.

Raw 1/4 mile track data:
12.294 sec @ 113.145 mph @ 1250 ft, 80 degrees F, 40 % rel. humidity

Peak hp @ rear wheels calculation from track data:
3400 lbs * (113.145 mph / 234)3 = 384.36 hp

Peak hp @ crank shaft calculation from track data:
384 hp / 0.85 = 452 hp


The rear wheel dyno results without using nitrous @ Bud's in Phoenix indicated peaks of 410 lb-ft @ 3600 rpm, and 312 hp @ 4200 rpm at the wheels, or a peak or 312 / 0.85 = 367 hp @ the crank shaft. So, if 90 hp for the nitrous is added to that number, 367 + 90 = 457 hp, which is very close to the peak hp calculated from the 1/4 mile mph, which is 452 hp.

The bottom line is that the motor is generating in excess of 400 lb-ft torque & the trans has survived 6000 rpm clutch dumps with Hoosier Quick Time DOT 275/50-16 tires out back. The torque rating on the GM WC T5 is 330 lb-ft. Needless to say, the Centerforce Dual Friction clutches don't last very long..........

Tim

 

Geez.... wow!

Were WC T-5's put on many of the 305's?
I have heard previously that some cars (besides v-6's) didnt come with the WC tranny. Is this true, or did all the Z's with a 5-spd come WC?

Secondly, are these results at all typical?

Thanks guys!

 

The WC T5 was used starting in '88. I don't know how many "upgrade" revisions were made to the WC T5, over the years, but I'd bet that there were some.

Tim

 

So the best Idea would be to try and find one out of a 91-92Z? Did they put them in the 305 RS's?