[ta man]

Originally Posted by HWYSTR455

I was this [] close to finishing my procharger 455 build, XFI, sequential, and decided it would be easier to build a 535 or 555. Just recently sold the procharger, intercooler, ECU stuff, intake, throttle body, and injectors too. Just easier to do it NA.

Got a fresh, never had fluid, TKO600 RR, full kit from Keisler, McLeod blow proof, and a McLeod street twin, will sell all that too, going to a 4L80E. Funny how time changes things.

I have Torque Tech tail pipes on my 'bird, fit excellent, but they're 2.5s. At the time, the 70-73 exhaust tips were only available in 2 1/4, so I cut the ends at an angle like the OE tips, and had the whole tail pipes chromed. They look great still, but will probably go to 3" after hearing your results Skip.

I have a collector-back Pypes kit, still in the box, will probably sell that too...

.

I'm always thinking about the next build or phase...I've always loved stock appearing cars...I'd like to make my car more stockish outside in the future..much like a stock 80 trans am,snow flake rims,special edition stripes,stock interior,stock shifter but with a roll bar,and run low 10's...

[ta man]

Originally Posted by Skip Fix

So some real track time data on my 78 I posted in the exhaust section thread.

I had 3" H pipe 2 chamber 3" flowmasters and 2.5 mandrel tailpipes omn the car for legal NMCA classes when I ran the RAIV 400. Dropped in the first E head 455 with a 259/262 @ 0.050 solid roller. It would pick up 0.2-3 sec open headers over closed exhaust with mufflers and pipes still on the car. While swapping tranny and convertor noticed mufflers and tailpipes were rusty so pulled the whole system off. Took it to the track and did some tuning. Then add a 3" Dr. GasX and 3" Ultraflows into 3" Torque Tech mandrel tailpipes. Even with the additional weight of the system the car ran identical. 1/8 6.9s @ 99-100 1/4 10.90s @ 123 with that motor.

Thanks Skip
Real time results are the best...pulling my tailpipes leaves a very efficient exhaust up front...3 inch with a X and Ultraflows......how were those Torque Tech tailpipes for fit??

[jonmachota78]

Hellcats are toast with street tires

https://youtu.be/1FaLDa9j5-c

[wheneaglesfly]

http://www.youtube.com/watch?v=yHxHu...e_gdata_player

Originally Posted by jonmachota78

Hellcats are toast with street tires

https://youtu.be/1FaLDa9j5-c

[wheneaglesfly]

Not messing around with highway gears.

4.30 :1.

Titanium .

[Pontiac Derek]

I have always had a thing for engines that Like a big Load on them like they could care less! My Dads 75 GP all Black 455 TH400 with 2.56 gears, we would tow our big ski boat and trailer up over Mt Hood like it was nothing! That left a big impression on me as a young kid! Especially when we got a brand new Dually with a 454 and it struggled its ass off to do the same trip
Pontiac's are Awesome!
That 455 had 1970 parts in it, 066 cam, small valve 15 heads, 70 4bbl
And HO manifolds with dual 2.25" exhaust
Junk parts by todays standards but as a little kid it was Amazing lol

[Pontiac Derek]

TAman aka "Ernie" is an inspiration and shows people a different method to going fast while remaining Cadillac Like Streetability!
Its not for everyone!
You will here a LOT of people saying get an Overdrive and throw some real gears in there and yes that would get him in the tens, it Just Comes Down to what you want to do with your car!
I don't know of any other cars running Ernie's ET's with just a 461 and a head with only 197cc runner, heck his heads are not even the latest version Dave Offers!
I believe Ernie's car with a few well chosen upgrades will run 10.90's at 123mph

[Skip Fix]

They fit great! Not SS but aluminized. Same ones still on the 78 for the past 10 years!

[ta man]

Originally Posted by Skip Fix

They fit great! Not SS but aluminized. Same ones still on the 78 for the past 10 years!

That aluminized stuff lasts...my exhaust is the same looks good..Thanks

[69FIREBIRD76MM]

I follow and enjoy reading about your car alot. Freaking fast. I also want to drive my car on the street and the track. My goal will be to run low 11's, I won't be running 3.08 gears since my 69 firebird has a Dana 60, 3.54's. But that's all good. Can't wait for you to hit a 10 second pass.

[Skip Fix]

The X pipe sure could have been some of the deal also over the H pipe. But it was tuned with H pipe first as well as the open header runs, then retuned with X.

Torque Tech make some nice fitting exhaust. My old Buick buddies turned me on to them back in the 90s.

[HWYSTR455]

Originally Posted by Skip Fix

The X pipe sure could have been some of the deal also over the H pipe. But it was tuned with H pipe first as well as the open header runs, then retuned with X.

Torque Tech make some nice fitting exhaust. My old Buick buddies turned me on to them back in the 90s.

If I can find some splitters that look OE and accept a 3" tailpipe, I will go that route on the LeMans build. Will definitely use Torque Tech for the rest. I've had nothing but good experiences with them.

.

[Overkillphil]

Have you been to their website lately? Sadly it turns out Torque Tech is closing its doors..."retiring".

[Pontiac Derek]

This is Not the Cheapest way to go fast but for me there is a couple reasons i enjoy cars that can do what Ernies does!
1. No reason to Build a High RPM engine to go fast unless you can't go fast with a Low RPM Street setup! He is Achieving his goals with out having 7.000rpm shift points and 4.000rpm on the freeway at 60mph!

2. Its much easier on parts! Saves money so you can spend it on building an even bigger beast!

3. Its the Biggest Ego Bump ever when you tell people your combo and they are looking everywhere for the nitrous! Lol

4. Since you are not tearing stuff up all the time you get to go out and enjoy your car more! And you can even hear your radio because you aren't buzzing down the road at 4k rpm with Dual 3" exhaust!

5. You are Playing into a Pontiac Engines Strengths! Massive Power Right F'n Now! I use to run Big Block Chevys when i was young and even with a really nicely built 454 with a solid cam and "Small" Oval Ports at 255cc, RPM intake it couldn't hold a candle to any Pontiac i have ever built on the Street!
Sure i can build a 496 chevy that makes great power but the pontiac just flat kills it on the street!

[pastry_chef]

Originally Posted by Pontiac Derek

I use to run Big Block Chevys when i was young and even with a really nicely built 454 with a solid cam and "Small" Oval Ports at 255cc, RPM intake it couldn't hold a candle to any Pontiac i have ever built on the Street!
Sure i can build a 496 chevy that makes great power but the pontiac just flat kills it on the street!

I love many engine brands but times have changed!

BBC 467
10.1 compression
AFR 265 heads (340 CFM)
Edel RPM intake.
228/238 @ .050 hyd roller, .549 lift
111 LSA

573 fl.lbs at 3800 RPM
TQ through mid is 585 - 590

591 HP at 5300 RPM
HP ramps up to 628 HP at 6200 RPM

Looked at a few "mild" 496 dyno sheets - TQ numbers are 640 plus

In most cases traction is the primary issue on the street.

[Skip Fix]

Torque Techs are set up for offset-offset and I had mounted my electric pump on the frame rail and used offset-center outlets so we added enough between the two piece tailpipes on mine.

[ta man]

Originally Posted by Skip Fix

Torque Techs are set up for offset-offset and I had mounted my electric pump on the frame rail and used offset-center outlets so we added enough between the two piece tailpipes on mine.

Thanks

[69FIREBIRD76MM]

My buddy built a ford Mustang fox 306 cid. block, Pretty basic. That thing will run 7.20 at the 1/8. Drove it every where. There is other brands with smaller engines running faster than bbc.

[ta man]

I wasn't expecting huge results due to the hot weather compared to the last outing..I will check the DA of both days to see what it was...Ran five times..1st pass 11.23/121.28 1.6469 60ft,2nd pass 11.21/121.52/1.6457 60ft,3rd pass 11.2179/121.97/1.6810 60ft,4th pass 11.2052/122.23/1.6782 60ft,5th pass smoked the tires track got dirty from some trucks 11.566/121.92/1.8879 60ft

Beat the old best by quite a margin in warmer weather..the tailpipes were a restriction.

[TCSGTO]

Originally Posted by ta man

I wasn't expecting huge results due to the hot weather compared to the last outing..I will check the DA of both days to see what it was...Ran five times..1st pass 11.23/121.28 1.6469 60ft,2nd pass 11.21/121.52/1.6457 60ft,3rd pass 11.2179/121.97/1.6810 60ft,4th pass 11.2052/122.23/1.6782 60ft,5th pass smoked the tires track got dirty from some trucks 11.566/121.92/1.8879 60ft

Beat the old best by quite a margin in warmer weather..the tailpipes were a restriction.

Do you think the gain was from less restriction or from the shorter pipe length of the system tuning to a higher rpm and helping the top end charge? Those Ultraflows look like a straight pipe to the motor so maybe tailpipe length affects the torque curve somewhat.