gear or converter

[slwryde]

My car is a little lazy of the line. I have a 414 sbc. 1.76 powerglide. 14-32 slicks. Rear gear 5.13. 60 foot times range 1.52 to1.55. My converter stalls instantly to 4500 on the brake and creeps up to about 5000.

Again it leaves lazy, I think. I would like opinions on weather a rear gear change (deeper), a converter change (looser) or a lower tranny gear would be best.

thanks Greg.

[1320racer]

reply deleted following the op's comment.

[slwryde]

The camshaft is 255@050 int and exh. .575 lift on both
The carb is a 850 holley
Engine is 9 to 1
Dyno 575 hp@6900 and 535ft.lb@5300

[1320racer]

reply deleted

[slwryde]

like you

[Geerhead55]

Originally Posted by slwryde

like you

WTF does that mean, Greg? This guys trying to help you and you bash him. Your motor is light on compression,, your camshaft is on the small side for a stroker small block, your converter is a little tight, and you come on here asking for help and you blow somebody off when they respond to your question. So much for getting any help here, I'm thinking.
Good luck with your project which ever way you decide to go.
Danny Durham

[rustbucket79]

Originally Posted by slwryde

My car is a little lazy of the line. I have a 414 sbc. 1.76 powerglide. 14-32 slicks. Rear gear 5.13. 60 foot times range 1.52 to1.55. My converter stalls instantly to 4500 on the brake and creeps up to about 5000.

Again it leaves lazy, I think. I would like opinions on weather a rear gear change (deeper), a converter change (looser) or a lower tranny gear would be best.

thanks Greg.

I choose option 4, all of the above. A 3 speed trans would probably make the most difference if you're only changing one thing.

[HP HUNTER]

Originally Posted by slwryde

My car is a little lazy of the line. I have a 414 sbc. 1.76 powerglide. 14-32 slicks. Rear gear 5.13. 60 foot times range 1.52 to1.55. My converter stalls instantly to 4500 on the brake and creeps up to about 5000.

Again it leaves lazy, I think. I would like opinions on weather a rear gear change (deeper), a converter change (looser) or a lower tranny gear would be best.

thanks Greg.

Im a little hesitant to ask, but who's converter do you have in there? With that kind of power 1.3s 60s should be no problem if everything is right, even with the glide. Did you ever weigh the converter empty of fluid?

[slwryde]

I used to run a 1.82 first gear, it was worth a few numbers but I was afraid I would break it eventually. My carb is an older style 850, I have tried a smaller carb 750 holley hp. It seemed more responsive but the et's and 60's did not change. I never thought of going larger than 850 but it would be worth a try.

The converter is from Chance. I told Marty about the hesitation to reach full stall and he suggested adjusting the timing. I never weighed it empty. What should I be looking for there? Thank you for the help.

[Geerhead55]

We put a 13.5 to1 406 with some 220 heads and a Comp roller (276-284/ 630- 672) on the dyno a few weeks back, and with an 850 Dp it made 605 after playing with it a little. We then threw on a 950 DP that was supposedly "really good" and lost 18 hp. Since it wasn't my carb, I didn't want to mess with it, so I pulled it. I told our dyno guy that I had a 750 that we could try, and he didn't think it would do any good on a 406 like this unless it was really tweaked on. I showed him it was a Proform bodied unit that had been worked over pretty well, so he said go ahead and try it.
Right away you could hear the difference in the way it idled, and it accelerated much quicker on that next pull, all the way to 7500 and it made 625hp!
I pulled the 82 jets from the secondaries and went to 84s where it lost 12 hp, so we put the 82s back in and it repeated to 623 hp.
So, when we first hit the track soon, it will be with the 750, although I'm sure there will be other carbs in the future.
Danny Durham