Re: A trip to Milan dragway for some TNT
[Re: B3422W5]
#2695743
09/09/19 11:37 AM
09/09/19 11:37 AM
|
Joined: Jan 2003
Posts: 14,539 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,539
So. Burlington, Vt.
|
I replayed the vid a few times.
Def doesn’t seem like it has enough stall, and sounded like it was legged out a bit too long in 2nd gear.
If that’s the best shift point, iiwii, but it “sounded” like you waited too long.
If you’re running it with the ex closed up, I’d def try uncorking it.
330cc is a fair amount of volume for 356cfm, although I realize some of that is the runner is length. That’s not far from what the TF270’s or a set of EZ295’s flow, with noticeably smaller runners.
You have to need that extra volume for it to pay off........ and an 11.25:1 511 just may not need it.
As for the victors and power....... I was pretty happy with Brads std port victors on his 452. Nearly 700hp with a (relatively) easy on parts roller cam.
I’m sure with a little more aggressive cam, an HVH super sucker/4150-4500 adapter and a decent 4500 carb it would have crested 700hp.
The ported MW versions seem to end up quite a bit bigger, but don’t flow much more.
What are the 60’ times?
Did you go over the scales?
As with every new combo, you have to start somewhere.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
Re: A trip to Milan dragway for some TNT
[Re: mopar dave]
#2695824
09/09/19 03:32 PM
09/09/19 03:32 PM
|
Joined: Jan 2003
Posts: 14,539 So. Burlington, Vt.
fast68plymouth
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 14,539
So. Burlington, Vt.
|
As with any street/strip car that’s trying balance the two modes of operation, it’s just a pile of compromises.
In order to improve one aspect of the operation, you have to give something from the other side.
Aside from maybe more cubes...... not usually any down sides to that other than fuel consumption.
I don’t think a different flat tappet cam would provide “much” performance improvement....... with no other changes to the combo.
It would probably be better if it was faster, and slightly smaller, and a little tighter........ and that would possibly run worse on the street with mufflers on it......... and would need pretty stout springs, which will impact reliability in street use. But...... if that were more than about .10 I’d be surprised.
There’s always some trade off.
This is why I like to dyno the motor before installation.
If you knew it made enough power to run a 10.0 you wouldn’t mess with it. You’d concentrate on the “car”.
So far at least, it looks like you need to find 50-60hp worth of mph to get into the 10.0 zone.
My guess is, if the motor were on the dyno, the hp numbers would look better than what the ET indicates the power is.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
|
|
|
Re: A trip to Milan dragway for some TNT
[Re: RustyM]
#2695896
09/09/19 06:14 PM
09/09/19 06:14 PM
|
Joined: Jan 2007
Posts: 8,075 Mt Morris Michigan
mopar dave
OP
master
|
OP
master
Joined: Jan 2007
Posts: 8,075
Mt Morris Michigan
|
More great info. Yes I ran 34* last weekend at another track in mine shaft air and it ran it's best pass at 10.401@130. Doms carbs are awesome.
Last edited by mopar dave; 09/10/19 07:37 AM.
|
|
|
Re: A trip to Milan dragway for some TNT
[Re: mopar dave]
#2695968
09/09/19 10:14 PM
09/09/19 10:14 PM
|
Joined: Jan 2014
Posts: 23 TN
RRandP92
member
|
member
Joined: Jan 2014
Posts: 23
TN
|
Agree with others,the package as a whole should have plenty left in it. Running an A body at 3250lbs 520ci 11.6:1 pump gas with otb trickflow 270s solid roller with similar specs on cam from dewayne. Old fenderwell headers and 3.5 in exhaust and mufflers dumped behind driver. Ultimate 8in converter set up very tight for nitrous, 727. 3.70 rear gear on a 325/50 radial. Best pass so far with zero track tuning is 10.003 at 130.50mph on a 97 degree day at Charlotte dragway. Leaving off footbrake at 2800 and shifting at 6200.
Last edited by RRandP92; 09/09/19 10:16 PM.
|
|
|
|
|