Launch help!!!

Camarob859 · 06-13-2016, 01:04 AM

Hi all
Having a problem with my car, just installed a new 8" converter that should flash around 5000, I launch foot to the floor on a 2 step @2500 rolls about 5 feet or so kind of feels like a "buck" car sort of bounces , it's killing my 60' time and what ever it is it doing the same every time combo is 255/350 69 camaro ,ps fuel pressure is 5.5 psi

ss3011 · 06-13-2016, 04:13 PM

If all you changed was the torque converter, then I would suggest putting your old converter back in and see if your problem goes away .

Camarob859 · 06-13-2016, 04:55 PM

It's leaving more violently until it starts bucking
Lost about a tenth and the density altitude was 9600 ft

Larry Hill · 06-13-2016, 06:01 PM

fuel spill over?

Camarob859 · 06-13-2016, 06:15 PM

I'm not positive about spill over no one saw any smoke but not sure if it would smoke as fast as it happens

Ed Wright · 06-13-2016, 07:54 PM

Quote:

Originally Posted by Camarob859

I'm not positive about spill over no one saw any smoke but not sure if it would smoke as fast as it happens

I had spill over several years ago when I still ran a carb. No smoke. Larry is likely correct.

Alan Roehrich · 06-13-2016, 08:32 PM

Yes, odds are there is fuel splashing out of the float bowl through the vent, or where the secondary metering rods are.

There is a baffle found on late model carburetors that may help. It is held on by the two screws on the air horn directly behind the choke tower.

Camarob859 · 06-13-2016, 10:11 PM

Air horn baffle?

henrys57wagon · 06-13-2016, 11:38 PM

http://quadrajetparts.com/used-horn-baffle-p-2428.html

and P 36 on here
http://www.gmcmi.com/wp-content/uplo...ice-Manual.pdf

06-13-2016, 01:04 AM	#1
Camarob859 Junior Member Join Date: Jul 2010 Posts: 52 Likes: 4 Liked 8 Times in 3 Posts	Launch help!!! Hi all Having a problem with my car, just installed a new 8" converter that should flash around 5000, I launch foot to the floor on a 2 step @2500 rolls about 5 feet or so kind of feels like a "buck" car sort of bounces , it's killing my 60' time and what ever it is it doing the same every time combo is 255/350 69 camaro ,ps fuel pressure is 5.5 psi

06-13-2016, 04:13 PM	#2
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 885 Likes: 63 Liked 221 Times in 102 Posts	Re: Launch help!!! If all you changed was the torque converter, then I would suggest putting your old converter back in and see if your problem goes away .

06-13-2016, 04:55 PM	#3
Camarob859 Junior Member Join Date: Jul 2010 Posts: 52 Likes: 4 Liked 8 Times in 3 Posts	Re: Launch help!!! It's leaving more violently until it starts bucking Lost about a tenth and the density altitude was 9600 ft

06-13-2016, 06:01 PM	#4
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,276 Likes: 1,635 Liked 9,449 Times in 1,954 Posts	Re: Launch help!!! fuel spill over? __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817

06-13-2016, 06:15 PM	#5
Camarob859 Junior Member Join Date: Jul 2010 Posts: 52 Likes: 4 Liked 8 Times in 3 Posts	Re: Launch help!!! I'm not positive about spill over no one saw any smoke but not sure if it would smoke as fast as it happens

06-13-2016, 08:32 PM	#7
Alan Roehrich VIP Member Join Date: May 2006 Location: Murfreesboro TN Posts: 4,910 Likes: 994 Liked 1,034 Times in 271 Posts	Re: Launch help!!! Yes, odds are there is fuel splashing out of the float bowl through the vent, or where the secondary metering rods are. There is a baffle found on late model carburetors that may help. It is held on by the two screws on the air horn directly behind the choke tower. __________________ Alan Roehrich 212A G/S

06-13-2016, 10:11 PM	#8
Camarob859 Junior Member Join Date: Jul 2010 Posts: 52 Likes: 4 Liked 8 Times in 3 Posts	Re: Launch help!!! Air horn baffle?

06-13-2016, 11:38 PM	#9
henrys57wagon Member Join Date: Jan 2009 Location: Carleton Place, On. Canada Posts: 107 Likes: 5 Liked 0 Times in 0 Posts	Re: Launch help!!! http://quadrajetparts.com/used-horn-baffle-p-2428.html and P 36 on here http://www.gmcmi.com/wp-content/uplo...ice-Manual.pdf __________________ old 1608 stock racer