WizeAss

iTrader: (5)

110lb driver vs a 250lb driver...

her car weighs under 3300.... she has alot of iWeight mods.

I already stated what is wrong with the combo.....
1. Heads are too big for NA.
2. Intake is restrictive
3. Nitrous wasnt on a WOT Switch on the 6.6 run
4. Car weighs alot.

If I can get it to run consistant 6.5's with a nice wheel tire/slick/MT325 style combo on a 150 shot I will be content.

fasttagurl

iTrader: (12)

Actually it is very logical to compare his car to mine, mine is a little lighter but his 408 should make up for my weight difference. I still have power steering, my car is not totally gutted but the AC is out. Still, instead of all the excuses the problem should be fixed.

fasttagurl

iTrader: (12)

Good, I am glad you have identified the issues. Now that 50 people are telling you what to do, what is YOUR decision to make it run right?

Elite_Hot_Rod

You know if you had 1/2" head studs I'd almost think about trading heads with you. Might **** my jockey off though.

7420NW7TH

iTrader: (8)

Well, his weighs 3900 lbs, your weighs 3300 lbs. Each 100 lbs equals a tenth. So pull your motor out and stick it in his car (and assume his suspension is dialed in, which it is not) then the car would run a 11.50. True, still alittle quicker than his 408, but you see where I am going with that....your car would be alot slower if it weighed 3900 lbs. Weight makes alot of difference. Mid 11's is pretty typical for a full weighted H/C car...

Me, I know my car has more in it, and I know where the problem is....converter is slipping too much. Once I get that fixed I can go with a 3.90 gear and be easily in the 10s easy with no more weight removed.

WizeAss

iTrader: (5)

How much machining on the block is needed for 1/2 inch studs? Can it be done with the block in the car



shoulda 'd it!

7420NW7TH

iTrader: (8)

How is the intake too restrictive? Thats a GMPP intake, it should flow every bit as good as a FAST. There's plenty of cars out there with that intake (and FAST) that are really fast. And don't waste your money on a sheet metal intake, your motor doesn't need it. Those intakes are for for motors like what the Six Speed Inc. car has. Your motor would fall flat on its face with a sheet metal intake.

Black2001z06

iTrader: (32)

This thread is funny.

Elite_Hot_Rod

Drill and tap the block and drill the heads, I don't see why it couldn't be done in the car but I had it done while the engine was out.

WizeAss

iTrader: (5)

what kinda heads you got?

WizeAss

iTrader: (5)

The car was at 91kpa... now it is at 93-94kpa after more tuning and a very little bit of smoothing work from Brian Lohse at Real Performance Motorsports in Lewisville. More or less a proper gasketmatch. The intake is restrictive, I had no intent on going with a sheetmetal. There are too many other parts that would be smart.

Really what I would love to be able to do is pull the motor out as a longblock and put it in a stock T-56 car and see what kind of mph it does. I know weight is a factor.... but how much?

7420NW7TH

iTrader: (8)

Also, I saw a picture of your engine bay in another thread. Have you taken that maf off? I not, you probably should. That maf is really choking that 408.

These 408's really like speed density tunes. You stand a chance of picking up some power there.

Elite_Hot_Rod

317 casting, 2.055/intake 1.60/exhaust, Comp dual springs, 3 angle valve job, angle milled.

Black2001z06

iTrader: (32)

It'a not a HUGE factor at the times you are running.
Keep in mind, my car is pretty much full weight as well.
Specially with my 270lb fatass driving it.

Trading for those truck heads(317) might not be a bad idea, but I'm not quite sure if I would trade straight up.

7420NW7TH

iTrader: (8)

The rule of thumb is .1 off your 1/4 et per 100 lbs. Rotating mass is even more. And getting weight off the front end helps moves the instant center back....a problem that us heavy turds with iron blocks tend to have (instant center being too far forward).

FASTFATBOY

iTrader: (23)

I dont get where so many in this thread are saying the elbow is hurting this car THAT much. WHere is this info coming from? Is it an "opinion" or more CRAP re gurgitated from message boards?

I have a similar setup on a 383 LT1 that runs BETTER than this car with a Monoblade TB.

So wheres the proof?


Also when you guys are saying his runners are too big, is the runner LENGTH beind considered?


This car has some issues no doubt, his intake setup aint the problem.

When a buddy of mine put down 525 to the wheels with an afr headed 408 with a FAST 90/90 through a 4L80E and a 12 bolt....something is up.

WizeAss

iTrader: (5)

my cam size is about a 236/236.... kinda small so it probably doesnt make as much peak... but it seemed to really help the HP under the curve vs the 244/248 I had in it. If only it was an apples to apples swap. I really can't compare since so much more was done to fix some issues.

fasttagurl

iTrader: (12)

Stock Trans Am weighs 3700 lbs., not 3900 lbs.

Black2001z06

iTrader: (32)

Maybe with the driver.
Curb weight is right around 3440 lbs or so.

fasttagurl

iTrader: (12)

I still can't believe we both ADORE LME and the great motor work they do! Are you going to the "Clash" race in Houston on the 12th of next month? I may run the Index Class again - It was a blast!