Another 9.5" converter question

One of the most critical areas of a automatic race car

Moderator: Marty Chance

Post Reply
Message
Author
ONDBMPR
Posts: 2
Joined: Wed Sep 22, 2010 8:17 pm

Another 9.5" converter question

#1 Post by ONDBMPR » Thu Sep 23, 2010 7:51 am

Hello everyone. This is my first post, so please excuse its length. I want to give as much info as possible. I bought my current race car turn key. I know many of the car's particulars, but not all. Anyway, I feel that the car is WAY off performance wise for me and am curious how much the converter is affecting it. The car is a 69 Chevelle back-halved ladder bar car. Race weight is 2995 with me in it. Ladder bar is set in the middle of 5 holes in the front, making the bottom bar level with the ground. It has 14 X 32 stiff sidewalls on it. The motor is a 383 sbc with 12.5 to 1 compression. Cam is a Comp Cam 12-906-1. It is .630/.630 with .276 in/ .284 ex at .050 on a 107lsa. I'm not sure if it installed straight up or not. The heads are Brodix Track 1's that have been ported. Intake is a box stock Super Victor and carb is a Pro Systems 950H built for the combo. TH350 with a brake. The rear is a 5.14. Now for the converter. It is Art Carr model 19920. That is a Super HD spragless built for 1000 horsepower with a welded front cover. It is stalled to 4500, I think. I leave on the transbrake at 4400 and the car leaves wheels way up. It 60's in the low 1.4's. But, on the shift ( I shift at 7200) it falls back to 4500. I only go through the traps at around 6700 and that's with the 5.14's. It runs a high 10.70 to a low 10.80 and between 122.3 and 123 mph. The previous owner ran a 300 shot of juice on the car and shifted at over 8000! I haven't hit the bottle yet, though the system is on the car. Is the converter being too tight hurting it this much? I think that at the cars weight , it should be in the mid to low tens easy. I am expecting too much? Some have said that I have too much gear, but it won't even come throught the traps at it s shift point.

User avatar
Marty Chance
Posts: 193
Joined: Fri Sep 19, 2008 6:34 am
Location: Cheney, KS

Re: Another 9.5" converter question

#2 Post by Marty Chance » Thu Sep 23, 2010 10:26 am

if it drops to 4500 on the shift it is WAY TOO TIGHT !!!!! you couldnt slow the car down after the shift more if you pulled the chute !
Neal Chance Racing Converters
Home of the World's Fastest Automatic Doorslammers!
www.racingconverters.com

ONDBMPR
Posts: 2
Joined: Wed Sep 22, 2010 8:17 pm

Re: Another 9.5" converter question

#3 Post by ONDBMPR » Thu Sep 23, 2010 10:29 am

Yeah, that's pretty much what I thought. I figured the converter was slowing me down close to .3 or .4 in the quarter running n/a.

User avatar
spib
Posts: 173
Joined: Fri Feb 05, 2010 4:42 pm
Location: wenatchee, WA

Re: Another 9.5" converter question

#4 Post by spib » Mon Sep 27, 2010 9:54 am

my blazer weighs 200 pounds more then you, and I have 4:86 gears on a 29 slick and I am on the rev chip at 7500 before the finish, I would say x2 on to tight convertor mine is 5800
I have a glide, with a brake
http://www.youtube.com/user/spib43
10.56 @128 best to date


Image

Post Reply

Who is online

Users browsing this forum: No registered users and 0 guests