My story..and I'm sticking to it
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
My story..and I'm sticking to it
The results are in on my lastest project and I must
tell you I am really elated.
First off, I would like to take this opportunity to extend my appreciation
to those that helped me reach my goals, without
them it would not have been possible.
A special thanks to Pat (Long beach Z28) for allowing me
to use his engine while I reworked mine.
A very "big" thank you to Jerry (Jerrywho) for lending his
expertise in reworking my engine parts.
A "right on" to all those lending their support
along the way, (Kevin) Kevin91z, (Allen)1989 GTA Trans Am,
(Rich) Parrydice7 (for getting his hands dirty),
(Vince) VincentZ28 (for his gentle push) and to
any others I might have missed.
Now for the details .....
Saturdays dyno testing resulted in an output
of 373 HP & 410 TQ to the rear wheels. (Kevin's awesome tuning)
For those not familiar with my set up, it is comprised of:
355 CI Vortec short block 10.6-1
Edelbrock E-tec 200 heads (reworked by jerrywho)
Crower cam 277/286 1.6 rockers
SLP runners (modded by jerrywho)
Vortec base (modded by jerrywho)
My 1 3/4" headers w/dual cats &
3" catback w/Magnaflow muffler
52MM TB
Thanks to all the guys who attended the dyno session,
for their support and putting up with my moddest
acceptance of their accolades. (he he)
tell you I am really elated.
First off, I would like to take this opportunity to extend my appreciation
to those that helped me reach my goals, without
them it would not have been possible.
A special thanks to Pat (Long beach Z28) for allowing me
to use his engine while I reworked mine.
A very "big" thank you to Jerry (Jerrywho) for lending his
expertise in reworking my engine parts.
A "right on" to all those lending their support
along the way, (Kevin) Kevin91z, (Allen)1989 GTA Trans Am,
(Rich) Parrydice7 (for getting his hands dirty),
(Vince) VincentZ28 (for his gentle push) and to
any others I might have missed.
Now for the details .....
Saturdays dyno testing resulted in an output
of 373 HP & 410 TQ to the rear wheels. (Kevin's awesome tuning)
For those not familiar with my set up, it is comprised of:
355 CI Vortec short block 10.6-1
Edelbrock E-tec 200 heads (reworked by jerrywho)
Crower cam 277/286 1.6 rockers
SLP runners (modded by jerrywho)
Vortec base (modded by jerrywho)
My 1 3/4" headers w/dual cats &
3" catback w/Magnaflow muffler
52MM TB
Thanks to all the guys who attended the dyno session,
for their support and putting up with my moddest
acceptance of their accolades. (he he)
#2
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Car: 1991 Camaro RS
Engine: L98 350 TPI
Transmission: 700R4
Axle/Gears: ZT LSD with 3.42 - LS1 brakes
Re: My story..and I'm sticking to it
:applause: way to go Don... Those are some awesome numbers!! :thumbs up:
Last edited by Imadude_134; 08-09-2009 at 11:44 AM. Reason: typo
#3
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Car: 89 IROC Z-28
Engine: 5.7
Transmission: A4
Axle/Gears: 3.42
Re: My story..and I'm sticking to it
Congrats on one KILLER combo uncle Don! You have once again raised the legit TPI performance bar. It's a good thing you had so many witnesses (credible and otherwise!) to the dyno tests because your results are gonna cause a big stir among all those high performance TPI naysayers.
You are and always will be "Da Man"!
Pat
You are and always will be "Da Man"!
Pat
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Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
Re: My story..and I'm sticking to it
That is Sick... Way to put down the power! Definitely sounds like a fun set-up you got there. How is the 9 bolt holding up? Posi still good?
One of these days, I am going to drop off my car and have you port and polish my superram, and get Kevins tuning, and hopefully join everyone in the High Power Smog legal group.
One of these days, I am going to drop off my car and have you port and polish my superram, and get Kevins tuning, and hopefully join everyone in the High Power Smog legal group.
#6
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Re: My story..and I'm sticking to it
Holy crap . Those are great numbers! Weren't your hp numbers before around 325? Besides the tune what else did you do to the car? Congrats on that.
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#9
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Re: My story..and I'm sticking to it
The local drag strip is going to be interesting this year with the cars comming on line with new engines. We are going to make a heck of a showing at the LA Invasion next year. Those 4th gen cars are going to wonder what is going on.
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Car: 88 Formula 350
Engine: 5.7
Transmission: T-56
Axle/Gears: 9" 3.89
Re: My story..and I'm sticking to it
Looks like we may have our hands full during the Norcal Vs Socal meet...
#11
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: My story..and I'm sticking to it
Update on what was done:
From another post.....
The heads and manifold have received the most attention.
The heads (E-tec 200's) now flow 270 peak flow @ .600 intake
218 @ .600 exhaust. (without the pipe)
The modded Vortec base is now @ 280-290 (did not flow them together).
The injectors raised .300 getting them out of the airstream.
https://www.thirdgen.org/forums/tpi/...pi-intake.html (Super Vortec TPI intake)
New square port headers to match the large E-tec exhaust port.
The heads milled to 60cc's raising the compression to 10.6 (was 9.7 on some but I won't go into that here)
Stay tuned.......maybe some more tricks in the works
--------------------------------------------------------------------------------
Last edited by Dyno Don; 08-10-2009 at 10:11 AM.
#13
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Re: My story..and I'm sticking to it
Don I clicked on your link in post #11 in both Internet Explorer and Firefox and it didn't work in either browser. I think something is broken in that link.
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: My story..and I'm sticking to it
Link fixed
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Car: '88 GTA, 90 Formula
Engine: 5.7 TPI, fed growth hormones
Transmission: 700r4 4u2?
Axle/Gears: 9bolt
Re: My story..and I'm sticking to it
I stood there and watched the numbers come up, and his numbers crushed my numbers for a 383 long-tube true-duals car on the same dyno on the same day with the same tuner. It's not magic, it's hard work, lots of experimentation and testing, and working with others that are pretty sharp as well. Congrats and thanks for the help.
TA
TA
#22
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Re: My story..and I'm sticking to it
We have done that using the NHRA correction factors and that lowers our times quite abit. That would make a 11 second car out of mine and the others deep into the 12's. I'm sure using the correction factor Don would have an 11 second car with his new motor if he could only drive.
#23
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Re: My story..and I'm sticking to it
He should easily... my first passes at the strip in the heat were 11.6's at 116 and I dyno'd about 380whp/360wtq ish on my rough street tune. Dyno tuned in the heat with a heat soaked motor, it made 392/372 I think, with torque dropping off each run due to heat of the motor. Probly 400/380 or more cold and it ran 11.4's at 118-119 then.
You have traction,and can launch that T56 strong, you have 11 second car thats the key tho, getting a 1.6x 60 foot with that stick shift. I had an auto and easily got 1.55's without too much effort
You have traction,and can launch that T56 strong, you have 11 second car thats the key tho, getting a 1.6x 60 foot with that stick shift. I had an auto and easily got 1.55's without too much effort
#24
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Re: My story..and I'm sticking to it
Allen is kidding about any questions of "if Don could only drive!" Don can definitely drive.
Last edited by Russ-So Cal; 08-14-2009 at 07:20 AM.
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Car: 1982+1988 Z28 Camaros
Engine: 1982=350 carb 1988=383 Carb
Transmission: 1982=4 speed T-10 1988=6 speed T56
Axle/Gears: 1982=stock
Re: My story..and I'm sticking to it
Congrats Don, you should be very proud of those numbers from a 355 and TPI to boot!
#29
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Re: My story..and I'm sticking to it
A little lesson here in Don's story. First you cannot just bolt parts together and expect to make power. On Don's first version of the motor he cleaned up the parts for a little better flow and made decent enough power. More than one would get from just bolting the parts together.
After analyzing the situation he realized there was a lot more power to be had. So he went back in and worked on the heads and the intake manifold and had a substantial gain in power. In fact right at the top for a 355TPI motor. So there is more to it than just bolting on parts as most of us know.
Last lesson is don't believe the numbers put out by Edelbrock.
After analyzing the situation he realized there was a lot more power to be had. So he went back in and worked on the heads and the intake manifold and had a substantial gain in power. In fact right at the top for a 355TPI motor. So there is more to it than just bolting on parts as most of us know.
Last lesson is don't believe the numbers put out by Edelbrock.
Last edited by 1989GTATransAm; 08-17-2009 at 01:21 PM.
#31
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Re: My story..and I'm sticking to it
Now even though they are not smog legal in CA, what do you think your numbers would be like if you slapped a miniram or a stealth ram on there? I think it would be interesting.
#32
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Re: My story..and I'm sticking to it
The Mini-ram is too small for a 350. With the mods Jerry has done to Don's base and runners, I'm not sure that a stealth ram would make any difference at usable rpms. Kevin already tested the set up of stock but ported plenum with a stock large base and the modified runners Jerry made against a super ram on his car and made 10 more hp with the modded tpi.
#33
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Car: '90 Trans Am-12.45@110.71
Engine: 355 w/AFR 195's Elem. 400/430 HP/TQ
Transmission: Tremec T-56
Axle/Gears: 12 Bolt 3.73
Re: My story..and I'm sticking to it
A little lesson here in Don's story. First you cannot just bolt parts together and expect to make power. On Don's first version of the motor he cleaned up the parts for a little better flow and made decent enough power. More than one would get from just bolting the parts together.
After analyzing the situation he realized there was a lot more power to be had. So he went back in and worked on the heads and the intake manifold and had a substantial gain in power. In fact right at the top for a 355TPI motor. So there is more to it than just bolting on parts as most of know.
Last lesson is don't believe the numbers put out by Edelbrock.
After analyzing the situation he realized there was a lot more power to be had. So he went back in and worked on the heads and the intake manifold and had a substantial gain in power. In fact right at the top for a 355TPI motor. So there is more to it than just bolting on parts as most of know.
Last lesson is don't believe the numbers put out by Edelbrock.
That is why we share our experiences here on this site so others may learn.
Pay attention to details, they are SO important!!!
#34
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Re: My story..and I'm sticking to it
The Mini-ram is too small for a 350. With the mods Jerry has done to Don's base and runners, I'm not sure that a stealth ram would make any difference at usable rpms. Kevin already tested the set up of stock but ported plenum with a stock large base and the modified runners Jerry made against a super ram on his car and made 10 more hp with the modded tpi.
I think a miniram vs our modded TPI intake would result in less torque and similar horsepower numbers.
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Car: 87 IROC
Engine: 305 TPI
Transmission: 700R4
Re: My story..and I'm sticking to it
So I've been doing some reading,... this thread, the tpi shootout thread, and the quest for better flowing tpi, as well as many others. In the tpi shootout thread I see they are using flywheel numbers, and in this thread its rwhp/rwtq numbers. I know that the power loss between different transmissions will be different, and even different with the same trans depending on how its built and so-on, but my question is, on average, how much parasitic loss can be expected between the flywheel and the ground? Also will the gearing in the rear end give different hp/tq numbers on a chassis dyno?
That, and I was also wondering about the mpg. In another thread I've seen Kevin claim mpg as high as the low 20s. How well does your car do Don?
That, and I was also wondering about the mpg. In another thread I've seen Kevin claim mpg as high as the low 20s. How well does your car do Don?
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Car: 89 RS
Engine: L03
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Axle/Gears: 3.08 posi
Re: My story..and I'm sticking to it
So I've been doing some reading,... this thread, the tpi shootout thread, and the quest for better flowing tpi, as well as many others. In the tpi shootout thread I see they are using flywheel numbers, and in this thread its rwhp/rwtq numbers. I know that the power loss between different transmissions will be different, and even different with the same trans depending on how its built and so-on, but my question is, on average, how much parasitic loss can be expected between the flywheel and the ground? Also will the gearing in the rear end give different hp/tq numbers on a chassis dyno?
That, and I was also wondering about the mpg. In another thread I've seen Kevin claim mpg as high as the low 20s. How well does your car do Don?
That, and I was also wondering about the mpg. In another thread I've seen Kevin claim mpg as high as the low 20s. How well does your car do Don?
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Re: My story..and I'm sticking to it
I believe the parasitic loss between the flywheel and the rear end on average is calculated at about 15%. As far as the gearing question.....I don't believe changing the gearing will give you higher or lower hp/tq numbers, what the gearing will do is shift the hp/tq numbers up or down in the rpm range on the graph....if I'm wrong someone please jump in and correct me.
#39
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Car: '88 GTA, 90 Formula
Engine: 5.7 TPI, fed growth hormones
Transmission: 700r4 4u2?
Axle/Gears: 9bolt
Re: My story..and I'm sticking to it
Uh, not exactly.
A car with very tall rear end gears will actually show lower torque/hp at the wheels if tested in the same gear vs a higher ratio (shorter) gears. However, it is a simple method to just test with the transmission in a lower gear, and it all comes out about the same.
TA
A car with very tall rear end gears will actually show lower torque/hp at the wheels if tested in the same gear vs a higher ratio (shorter) gears. However, it is a simple method to just test with the transmission in a lower gear, and it all comes out about the same.
TA
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Re: My story..and I'm sticking to it
I don't think gearing changes where an engine makes torque or hp it just changes the speed of the vehicle where the torque and hp peak at. On the dyno, you won't see a difference, but on the street or strip it will effect all sorts of things from mileage to e.t. to trap speed in the quarter.
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Car: was 85 TA, 91 TA both sold
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Re: My story..and I'm sticking to it
Don
From start to finish, how long has it taken you to get this far?
ps...love the Tq#s
From start to finish, how long has it taken you to get this far?
ps...love the Tq#s
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Car: 1986 Grand Prix TPI
Engine: 350 TPI
Transmission: 200 4R
Re: My story..and I'm sticking to it
Uh, not exactly.
A car with very tall rear end gears will actually show lower torque/hp at the wheels if tested in the same gear vs a higher ratio (shorter) gears. However, it is a simple method to just test with the transmission in a lower gear, and it all comes out about the same.
TA
A car with very tall rear end gears will actually show lower torque/hp at the wheels if tested in the same gear vs a higher ratio (shorter) gears. However, it is a simple method to just test with the transmission in a lower gear, and it all comes out about the same.
TA
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