Lets see ur 305 TPI dyno numbers.

 

stock motor...

209 RWHP and 270 RWTQ with no fan

 

'90 SD stock motor. stock chip. MSD wires+coil, TB mounted K&N. Hedman long tubes (with 1 crushed primary tube LOL), 2.5" dual exhaust with X crossover. T5 tranny (at the time), 110k miles

 

purdy good numbers ya got there...ever run it at the track?

 

See sig below. Good numbers CheesX.

 

Thanks, I've gone to the track twice, once when it was stock and once after dynoing. Both times I had a wonderful assortment of problems and ran very embarrasing times. I'm going back once everything is fixed. I've G-teched at 97 MPH with my old exhaust before but everyone knows what g-tech times are worth.

 

run no muffler

 

Numbers and times in my sig.

 

162hp and 220 ft. lbs torque.
With cut out open i only dynoed at 150hp and 210lbs torque.

 

U guys are puttin out some pretty good numbers. anyone else.

 

What's wrong with the motor? That seems awefully low...

 

whats wrong with the motor? aside from it being a 305...lol... it only had 190hp to start with.

My 86 did the same damn thing...and I even replaced the peanut cam. (embarassingly enough)

167hp/239tq

of course, theres still a few things wrong, but no excuses.
It's just a turd.

on a worse note, the best time I've managed out of it so far is a 14.99@92.

-JT

 

torch ta

some advice for me here, i also have a 86 305 tpi with only 23,000 original mile on it, i to am disapointed with the power so i 'm going to do the cam on it, i want to put comp extreme energy 212 218 449 456 112lsa i'm hoping for atleast a 14.8 in the q-mile with this, i do have the 3.42 gears,

thanks

 

forgot to mention I've got 3.73s in it too.
The one I used was the compucam 2040...or what used to be. And to make it worse, i cant recall the specs offhand, but it works well enough.

when i first got the damn car, it ran like a TBI car. 16.1@82ish...heh

 

Anyone one else have track times or dyno numbers

 

track times in sig.
BD3

 

14.5 @ 96mph...stock 305. nothing done to it yet. i have borla exhaust and 3.73s for the go fast stuff.

 

228rwhp 290 RWTQ here... headers,stock chip,underdrive pulleys 5 speed.. ram air.. its gotta be the best 305 I have ever had.. takes a beating and still beats the 350's hahahahaha

14.5 in the 1/4 @ 96.7mph with a 2.225 60' time

 

Stiffler, your numbers are right there with mine. The only difference really is I have an automatic with a 2800 stall TC. I would think you would be running 13's with me. What gears are you running.

 

I have 3.42 in the back... I would think if I could knock off some 60' times I would get it down to a 14.1 and maybe with the wind blowing behind me a 13.999 is what i dream of out of my 305..

 

I don't know anything about dyno runs, but why do you start at a certain rpm when you floor it?

 

jfreeman, how much did you pay for your whole exchaust system? I'm thinking abou the same setup. Also can I see how you gutted your air box. My car is running awesome after I plugged in the maf sensor :lala:

 

i just got an 86 IROC with a 305tpi. I would be willing to bet that there are 2.73 in the rear. All stock, what kinda numbers should I expect to run in the quarter?

 

15.4@92mph; you can figure out the power numbers from that trap speed I'm sure.

100% bone stock 1988 G92 305 IROC. No factory A/C (no it's not a 1LE). Delco air filters, GM exhaust, etc. Previous owner did not do one mod to this thing.

This car is capable of hitting 14's 100% bone stock. I just need to launch properly so I have some traction.

 

The Random Tech catback was $330 from www.thunderracing.com. I got the SLP headers on a group purchase on this site for around $600 and got the Car-Sound Cat for $60.

 

The reason is that they have to make the run in one gear without shifting. The gear they use in an automatic is 3rd so they usually start at a high RPM before he goes WOT. He brings the car to speed until the tranny shifts to 3rd then he backs down a little until stable then the floors it. Also they remove the TV cable to keep it from downshifting. On a manual they might use 2nd gear but not sure, and they start at a much lower RPM before flooring it. My car did the run on 3rd and the speedo was going about 110MPH when he reached 5K RPM.

Here is my dyno sheet:
http://home.earthlink.net/~ozvresto/GTA/dyno1sm.jpg

-Ozzy

 

You always try to use your 1:1 gear for the dyno to minimize tranny losses. But I think that would also increase the frictional loss in the rest of the drivetrain? I dynoed in 4th gear on my T5.

 

thats the way i have always seen people dyno. auto's dyno in 4th gear and t5s dyno in 4th gear

 

I would think you would use 3rd gear with an auto for a dyno, because of the 1:1 gear ratio.

 

my friend used his 3rd gear (auto) on his dyno. the guy even said its his 1:1. i dunno bout 4th gear...lol

 

MY 85 Z28 stock with just all the mods below except the for the headers, becasue they were not installed at the time so my numbers are 188.9 rwhp and rwtq 241.4 on a basicly stock motor

 

Im gettin the car dynoed tommorow. 85 IROC 305 TPI with 700r4 and 3.42 gears. Ive got headers, Catback, K&Ns, gutted MAF, and gutted air boxes. Ill let u know what I do.

 

i was putting out 198rwhp/268rwtq. runing a 14.7 all day long
in bout 2 months should be running a 14.2 putting out somehwere round 225rwhp and 275rwtq. buti'll come back and tell ya

 

I ran on a mustang dynometer today and did 176rwhp and 220rwtq. I didnt know but I guess that the mustang dynometers are used for deisel trucks and there not to acurate for cars. Im gonna get a on a DynoJet soon and ill let u know what I do.


What kinda dynos did u guys run on. A mustang Dynometer or a DynoJet. The Mustang Dynometer has 2 rollers, the DynoJet has one big drum roller.

 

i ran on a mustang dyno,

there was a giant mustang meet and my friend with a mustang coldn't make it so i filled his spot. i was the only caaro in sight. felt kinda outta place and was really like the center of attention. a camaro in a mustang club.

 

'91 Z28 305 TPI / Auto

Mods: Flowmaster catback, March Underdrive pulleys, K&Ns.

DYNO RESULTS:
197.6 RWHP
283.4 RWTQ

Quarter Mile Time
14.975 @ 92 MPH

 

'91 Z28 305 TPI / Auto

Mods: Flowmaster catback, March Underdrive pulleys, K&Ns.

DYNO RESULTS:
197.6 RWHP
283.4 RWTQ

Quarter Mile Time
14.975 @ 92 MPH