[ta man]

Originally Posted by Cliff R

I run into the same issues, when the air is good and tracks are cool/cold the engine makes more power and there is less traction. So the car will slip some on the launch and worse short times, but still runs good MPH.

If you can bring it all together and hook on the days with better weather you will be rewarded with better runs.

It also really helps when possible to run with or follow the "race" cars instead of getting behind a bunch of street tire cars that are digging up the track and leaving oil and water on it.

The real cure is to mount up a good set of slicks for those days instead of DOT's......Cliff

I agree at this track the best day is Saturday afternoon when they are running points events,testntuners are welcome too.Figured out that a few years ago race with the big boys..last night was a good sight at this track they were doing an event called"Beat the Heat".Basically you could race a police car and donate money.The turnout was unbelievable.Most of the cars were street cars and the most of the drivers were under 30!Which for any dragstrip is a good sight to see!I was just happy to be part of it and able to donate some money.

[ta man]

Originally Posted by grandville455

Congrats!! more et to follow yet

Darby..there is always more et....The car loves the cold with the cowl air cleaner,when I got home last night I opened the hood to do a basic check,since I just drove 100 miles back.The top of the air filter and the air filter were both cold.I should have grabbed my temp gun to see the difference in temperature.Since we do have quite a few cooler nights up here its a good thing,I upped the jetting yesterday before I left and the plugs looked fantastic when I got home.Next thing to do is add some more jet on those cooler nights and see.I'm hoping with traction and tuning to drop another tenth.I'm sticking to not making any changes this year just tuning.If you remember first couple times out with this combo in the other car..I ran low 12's with a 3.42 gear,other than a fuel system change,a carb spacer,cowl air cleaner and cheap 3 way adjustable shocks nothing else has been done.Just the essentials track time and tuning.When Dave Bisschop told me there was a lot more left in the combo he was right!

[ta man]

Originally Posted by tpssonic

120+ mph and sending a TT 'cedes back to the pits with with a case of TAtailightitis? I'd say that is makes for a night well spent. Congrats!

He didn't run again....I have a video coming..hopefully the quality is good!

[jonmachota78]

Ta man any idea how much your car weighs?

[ta man]

I haven't weighed this one yet,the old one was 3900 lbs with me in it.I'd guess this one is the same maybe slightly lighter.I will scale it soon I'm curious too.

[Pontiac Derek]

Great Job TA Man!!!
Its a really good Proven Combo, Dave has Tested a lot of stuff on the Dyno,Street,and Track to come up with these Combinations that work "out of the box"
With a Typical 455-474 cid motor with the 295cfm SD Kre D ports, Old Faithful cam, 1.65 rockers, Rpm intake and 950 holley or 850 Q Jet and nice 1-3/4 4 tube headers
This combo really Excels at Average HP and Tq but peak you are going to see anywhere from 540hp to 565hp at 5600-5800rpm and 580-610tq at 4600ish rpm
With a Ported Torquer 2, 11.00:1 or higher compression, Solid roller lifters you are going to see 575-610hp at 5800rpm and 600+tq at 46-4800rpm with well over 300hp at just 3000rpm! This is my experience with this combo.
I built a 470 4.195x4.25 engine with 10.2:1 compression
Edelbrock Heads i ported then Dave did more to them they flowed 322in at .650 and 244ex at .650 lift
Old Faithful i installed it on a 110ilc and ran 1.65 rockers just on the intakes and 1.5's on the exhaust
Fully Ported RPM intake with a Shop Pro systems 950 carb 1" open spacer
Hooker 2" supercomp headers and we ran my fully ported manifolds too
It Made 568hp at 56-5800rpm and 588tq at 4600rpm and 538hp and 568tq with HO manifolds FWIW

[ta man]

Originally Posted by Pontiac Derek

Great Job TA Man!!!
Its a really good Proven Combo, Dave has Tested a lot of stuff on the Dyno,Street,and Track to come up with these Combinations that work "out of the box"
With a Typical 455-474 cid motor with the 295cfm SD Kre D ports, Old Faithful cam, 1.65 rockers, Rpm intake and 950 holley or 850 Q Jet and nice 1-3/4 4 tube headers
This combo really Excels at Average HP and Tq but peak you are going to see anywhere from 540hp to 565hp at 5600-5800rpm and 580-610tq at 4600ish rpm
With a Ported Torquer 2, 11.00:1 or higher compression, Solid roller lifters you are going to see 575-610hp at 5800rpm and 600+tq at 46-4800rpm with well over 300hp at just 3000rpm! This is my experience with this combo.
I built a 470 4.195x4.25 engine with 10.2:1 compression
Edelbrock Heads i ported then Dave did more to them they flowed 322in at .650 and 244ex at .650 lift
Old Faithful i installed it on a 110ilc and ran 1.65 rockers just on the intakes and 1.5's on the exhaust
Fully Ported RPM intake with a Shop Pro systems 950 carb 1" open spacer
Hooker 2" supercomp headers and we ran my fully ported manifolds too
It Made 568hp at 56-5800rpm and 588tq at 4600rpm and 538hp and 568tq with HO manifolds FWIW

Thanks for the info...did you see any dyno pulls with a rpm and a torker 2 back to back on a similar engine?

[Pontiac Derek]

No i haven't, But the Torquer ll Fully ported is the one Single Plane intake ive seen that gives up very little down low to the RPM yet Pulls away past 5000rpm
On the 470cid engine i previously Described if i ported a Torquer ll and swapped out the rpm i feel it would have produced between 585-600hp and 585-600tq at the same rpm
The Tll un ported is a good intake but fully ported it really comes alive!

[ta man]

Originally Posted by Pontiac Derek

No i haven't, But the Torquer ll Fully ported is the one Single Plane intake ive seen that gives up very little down low to the RPM yet Pulls away past 5000rpm
On the 470cid engine i previously Described if i ported a Torquer ll and swapped out the rpm i feel it would have produced between 585-600hp and 585-600tq at the same rpm
The Tll un ported is a good intake but fully ported it really comes alive!

I will be testing intakes this year,I'm swapping a rpm on to see what spacers it likes.Removing the water crossover from both intakes.Both intakes will be port matched to my heads.Then after I have the rpm dialed in for spacers I will test both on the same day at the track.

[68gtoMN]

Congratulations on time! Great thread on the 3.08 gear. I have always loved mine in my 68 GTO (different differential than stock - 12-bolt from GP). 462, high compression, aluminum flywheel 4-spd wide ratio trans, 14x7 rallys with 245 tires. Through exhaust I ran 12.68@111+ back in 1988. Never needed more gear. Great highway mileage - easy on engine.

[TCSGTO]

Originally Posted by Pontiac Derek

No i haven't, But the Torquer ll Fully ported is the one Single Plane intake ive seen that gives up very little down low to the RPM yet Pulls away past 5000rpm

I have a SD cnc'd TII now that I'm playing with and got an all time best 60' of 1.52 with it, but I also had my converter restalled to 4200. On a sketchy track at over 2000' to 2300' DA I was getting low 11 teens where with the RPM and 3300 stall would have been in the 11.30's in that air. I have a tapered 1" spacer under the carb on the TII, the RPM was too tall to fit one.

Derek, would you consider Dave's CNC job to be fully ported? It's opened to 2.3" tall and ported to just past the turn. There doesn't appear to be any taper from the plenum to the head. Is there something to be gained raising the port roof at the plenum?

Sorry if I hijacked your thread TA. Great job with the 3.08's!

[77 TRASHCAN]

Ernie,
How many cfm is your 950Hp carb??? I know that the carb size rules changed when Demon got into the game way back. Have you thought about trying a slightly smaller carb???

Do you and Andy plan plan to go to the track at the same time in future???

[ta man]

I believe my 950hp is 830cfm or so from what I have read.I've tried a few 750 cfm?dbl pumpers just to test..not as responsive on the street.I've also tried a 1000hp which is 880cfm?didnt pick up at the track.There is another carb here in the shop once I get it tuned I'm running it on the rpm...
Andy and I usually hook up once or twice a year at the track..its always a good time..we have quite the crowd between his friends and mine.Plus two strong running street Pontiacs is pretty cool...be another one this year CNC Chris has his ready to go too.

[77 TRASHCAN]

I wonder if Dave @ SD has ported very many Performer RPM's??? or if they can be ported???

Interesting thing about a Q-Jet. You can vary the CFM by making a stop for the air flap arm. Of course your's and Andy's are pretty honk'n big engines, I doubt there'd be any gain by reducing the CFM on either engine, as you have found. Would be easiest do do on a Q-Jet...

[Skip Fix]

As big as the runners and plenum are on an RPM I would think a port match would be all that is needed unless a 500+" motor.

[Torquewar]

I will chime in and since me and TA man get together when we can.
My combo is the same except with E-Heads done by SD 330s. I have always been running a Quad and a RPM. The RPM was port matched and played with a little by me. Quad has always been dead nuts reliable and for a street car i love it.
Have disscussed with Ernie about a T2 and prepped Holley see what it may do .
The T2 will be sent to SD for some work and need to source a carb.
Its interesting to see real strip results with combos . Hope it all pays off for the effort and maybe with some guys here on this site.
CNC will be going sometime this year with my tires.....its all fun.

[77 TRASHCAN]

Originally Posted by Skip Fix

As big as the runners and plenum are on an RPM I would think a port match would be all that is needed unless a 500+" motor.

I was thinking of a comment from Cliff about one of his customers that ran a RPM intake on a considerably more powerful engine. There was some thought that a cylinder or two on his RPM intake may have been somewhat restricted causing a cylinder or two to go lean, and pound the rod bearings on those cylinders. I'd imagine Dave B. has an answer...

[Skip Fix]

Might have been the Tomahawk with a Qjet and no spacer Cliff was talking about. I just pulled mine out of the attic last week to measure height to compare to several intakes and actually was kind of surprised how big the plenum and runners and how contoured into the runners from the plenum the intake already was.

I got this RPM when they first came out and let Lee Atkinson borrow it for a track comparison to his Torker II on his first gen with a 455 11 sec Bird and I think they ran darned near identical times.

[Cliff R]

"I was thinking of a comment from Cliff about one of his customers that ran a RPM intake on a considerably more powerful engine."

It was the RPM intake, and they lost the engine twice on the same rod bearing. It's a high HP set-up, runs high 9's over 135mph, engine makes 735hp. The RPM intake was heavily ported. It was removed, and replaced by a ported Tomahawk with a 2" spacer and no more issues with rods bearings.....Cliff

[Skip Fix]

Cliff what carb on the motor? Q jet or square bore? Which cylinder?

I think Steve C ran a RPM for awhile with no issues with a moderate HP(600+).