|
Slow me down!?!?
#1429185
05/02/13 01:20 PM
05/02/13 01:20 PM
|
Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
OP
super stock
|
OP
super stock
Joined: Dec 2006
Posts: 1,178
Indy
|
Will launching the car in second gear (or third) hurt the transmission?
I’m trying to slow the car down about a second for a few races to run in sportsman (12.0 and slower dial)…my car runs 10.80’s normally. I can add enough weight to the car to make it run a between 10.95 and 11.00, so this is my thought to get that last second:
Launch the car in second gear (~0.4 seconds)…or possibly launch in 3rd (not sure what that would do).
Remove the carburetor's secondary linkage so it can’t open (~0.3 seconds).
Retard timing 7 degrees to 27° total (~0.3 seconds).
So, do the times for each suggestion sound about right for slowing the car down?
Does this sound like it would work, and will any of this possibly hurt the motor or trans (this is my MAIN concern)???
Any help, or previous experience with trying any of these is appreciated, thanks!
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
|
|
|
Re: Slow me down!?!?
[Re: FlyFish]
#1429188
05/02/13 01:45 PM
05/02/13 01:45 PM
|
Joined: Feb 2007
Posts: 970
Backwater, PA
bwdst6
Bob George Racing #1 Fan
|
Bob George Racing #1 Fan
Joined: Feb 2007
Posts: 970
Backwater, PA
|
I use this… http://www.etgenie.com/It’s a little expensive. But it is easily adjustable and capable of constantly being fine-tuned to hit whatever number. I need to slow my car down from 10.9 to 11.5 (no roll bar) and it works fine for me. There is another place that makes changeable restrictor plates that is cheaper.
This post is available in double vision where drunk.
|
|
|
Re: Slow me down!?!?
[Re: FlyFish]
#1429189
05/02/13 02:38 PM
05/02/13 02:38 PM
|
Joined: Nov 2006
Posts: 635
mississippi
bentwheel43
mopar
|
mopar
Joined: Nov 2006
Posts: 635
mississippi
|
We use a Moroso throttle stop,if its on a holley carburator.about $30
Section 8 Racing We are nuts about racing.
|
|
|
Re: Slow me down!?!?
[Re: Mopar-Al]
#1429190
05/02/13 02:40 PM
05/02/13 02:40 PM
|
Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
OP
super stock
|
OP
super stock
Joined: Dec 2006
Posts: 1,178
Indy
|
Quote:
Why cant you use a throttle limiter or a rev limiter? Seems easier. If you shift at 6k shift at 5k, instead of wide open, 3/4 throttle. Something like that
Yeah, I tried making a home made throttle stop for the carb....Long story, but the short version is FAIL. 
My converter flashes to 5000 and I normally shift ~6200, shifting early doesn't do much (runs close to the same). My car runs 0.04 quicker in the 1/8 if I shift at 6500 instead of 6000. I guess I could try shifting at 5500 and see what that does. Going to hit a test-n-tune in the next week or 2 to get this sorted out.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
|
|
|
Re: Slow me down!?!?
[Re: bwdst6]
#1429191
05/02/13 02:44 PM
05/02/13 02:44 PM
|
Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
OP
super stock
|
OP
super stock
Joined: Dec 2006
Posts: 1,178
Indy
|
That ET Genie looks SWEET, but this is just for a few races so I don't want to drop a ton of money on anything.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
|
|
|
Re: Slow me down!?!?
[Re: bentwheel43]
#1429192
05/02/13 02:48 PM
05/02/13 02:48 PM
|
Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
OP
super stock
|
OP
super stock
Joined: Dec 2006
Posts: 1,178
Indy
|
Quote:
We use a Moroso throttle stop,if its on a holley carburator.about $30
Yeah, my home made version sucked big time, I might have to break down and buy one of these eventually. I'm hoping to be able to shave the second off the car with no money spent...but this is definitely a good plan B.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
|
|
|
Re: Slow me down!?!?
[Re: pittsburghracer]
#1429194
05/02/13 03:39 PM
05/02/13 03:39 PM
|
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
|
Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,640
in a cattle trailer down by th...
|
Just tie an old FE Ford engine to the rear bumper, that should do the trick.
"Follow me the wise man said, but he walked behind"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion.
'74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost conversion.
2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
|
|
|
Re: Slow me down!?!?
[Re: FlyFish]
#1429196
05/02/13 03:54 PM
05/02/13 03:54 PM
|
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
If you have a production throttle cable slide it forward so you only get part throttle.... this is what I made for my dom... I slow it down just over 1 second for the 10.0 stuff... plus I lower the launch rpm and the shift rpm 
|
|
|
Re: Slow me down!?!?
[Re: FlyFish]
#1429199
05/02/13 04:07 PM
05/02/13 04:07 PM
|
Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
|
Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
|
Quote:
Quote:
If you have a production throttle cable slide it
forward so you only get part throttle.... this is
what I made for my dom... I slow it down just over
1 second for the 10.0 stuff... plus I lower the launch
rpm and the shift rpm
I tried moving my throttle cable a little over an inch a few weeks back...only slowed by 0.3 seconds for some weird reason.
You will be suprized at how little the throttle will
be open to slow it 1 second... I'm at 1/3 throttle
and launch at 3600 rpm and shift at 5600
|
|
|
|
|
