Nitrous torque converter experts question
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TECH Junkie
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Joined: Jun 2003
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From: Winter Garden, Florida
Nitrous torque converter experts question I'm going to have my converter restalled so it will work with my nitrous system. Currently I'm running a Midwest 42-4400 with no lock up clutches. That was fine all motor, but I'm blowing through it on the gas. This was my conclusion after testing on the dyno and the track and the car makes more power and mph with a 100 shot than a 150 (would loose 10hp on the dyno and 1mph at the track with the 150). Before I have it restalled, thought I'd ask for some suggestions. Here's what the car is currently doing:
11.66 @ 118 with a 1.66 60' on motor
11.000 @ 125 with a 1.57 60' on a 100 shot
Should I go so low as a 3800 stall or is there anyone with suggestions?
Thanks!
11.66 @ 118 with a 1.66 60' on motor
11.000 @ 125 with a 1.57 60' on a 100 shot
Should I go so low as a 3800 stall or is there anyone with suggestions?
Thanks!
whats the rest of your setup? I.E. heads, cam. i used to run a vig 3200 on a stock motor with bolt ons. on a 150 shot ran some 6.9x's in the 1/8th mile. 1.45 60 ft.
are you running a wet or dry shot?
are you running a wet or dry shot?
Thread Starter
TECH Junkie
iTrader: (9)
Joined: Jun 2003
Posts: 3,428
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From: Winter Garden, Florida
Well here's the lengthy list:
Engine/Tranny
Comp Cams XR 228/228 .571/.571 113lsa
Stage II heads, Ferrero 2.02/1.57, Comp 918's
LS6 Intake, VHP MAF ends, polished TB, TB bypass, 160 t-stat, Direct Flo lid, K&N filter
NX wet kit, MSD Window switch, FPSS, bottle warmer
LS1Edit tuning by Norris Motorsports
Exhaust
Jet Hot Headers, Hooker ORY, SLP dual/dual, Flowmaster muffler, exhaust cut-out
Suspension
Front sway bar delete, BMR sub-frame connectors, HAL QA1 front shocks/springs, CE rear shocks, BMR lower control arms and relo brackets, Spohn torque arm with spherical rod end
Drivetrain
Currie 9" rear narrowed 4", aluminum center section, full spool, 3.70 gears and Wilwood lightweight brakes
Midwest 4400 torque converter(non lockup), B&M trans cooler
Misc.
Pro stars, ET Streets 26x11.5
Chrome moly, weld in, custom 6 pt roll bar
Jaz racing seats, RCI 5 pt harness
Walbro 340 intank fuel pump, Aeromotive fuel pressure regulator
Hurst line lock
Autometer 5" monster tach
Grant steering wheel
Big Mike, thinking about going with a 28" as I'm about to upgrade to slicks. Gearing as mentioned above is 3.70s.
Engine/Tranny
Comp Cams XR 228/228 .571/.571 113lsa
Stage II heads, Ferrero 2.02/1.57, Comp 918's
LS6 Intake, VHP MAF ends, polished TB, TB bypass, 160 t-stat, Direct Flo lid, K&N filter
NX wet kit, MSD Window switch, FPSS, bottle warmer
LS1Edit tuning by Norris Motorsports
Exhaust
Jet Hot Headers, Hooker ORY, SLP dual/dual, Flowmaster muffler, exhaust cut-out
Suspension
Front sway bar delete, BMR sub-frame connectors, HAL QA1 front shocks/springs, CE rear shocks, BMR lower control arms and relo brackets, Spohn torque arm with spherical rod end
Drivetrain
Currie 9" rear narrowed 4", aluminum center section, full spool, 3.70 gears and Wilwood lightweight brakes
Midwest 4400 torque converter(non lockup), B&M trans cooler
Misc.
Pro stars, ET Streets 26x11.5
Chrome moly, weld in, custom 6 pt roll bar
Jaz racing seats, RCI 5 pt harness
Walbro 340 intank fuel pump, Aeromotive fuel pressure regulator
Hurst line lock
Autometer 5" monster tach
Grant steering wheel
Big Mike, thinking about going with a 28" as I'm about to upgrade to slicks. Gearing as mentioned above is 3.70s.
Thread Starter
TECH Junkie
iTrader: (9)
Joined: Jun 2003
Posts: 3,428
Likes: 0
From: Winter Garden, Florida
150 shot will be the most that this tranny will see. I was thinking about going lower just because this converter feels real loose. Guess I'll ask Midwest if I go 4000 can they make it tighter. Thanks for the input. How you coming on chasing 8's?
next,
I'm running a 3400 converter with 3.73's, 28" tire with a 300 shot, and the converter is a little on the tight side, that's why I think you can get a way with 4000. Either way, you can always get the verter reflashed if needed.
As far as chasing 8's goes... This winter I took over 200lbs outta the car and plan on upping the shot. Once the weather breaks, we'll see how she goes!
I'm running a 3400 converter with 3.73's, 28" tire with a 300 shot, and the converter is a little on the tight side, that's why I think you can get a way with 4000. Either way, you can always get the verter reflashed if needed.
As far as chasing 8's goes... This winter I took over 200lbs outta the car and plan on upping the shot. Once the weather breaks, we'll see how she goes!
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Thread Starter
TECH Junkie
iTrader: (9)
Joined: Jun 2003
Posts: 3,428
Likes: 0
From: Winter Garden, Florida
I've been extemely happy with the customer service from Midwest. Restalling is not a problem and as I mentioned this is just a temp situation as I work out the plan for the 3 speed tranny. Thanks again for your input.
The update sounds promising. Can't wait to hear how it goes for you. I need to get my car weighed as I've shedded a few pounds and should be down near the bottom 3100s w/o me. Still got a few more things on the car that will drop me down another 100 or so.
The update sounds promising. Can't wait to hear how it goes for you. I need to get my car weighed as I've shedded a few pounds and should be down near the bottom 3100s w/o me. Still got a few more things on the car that will drop me down another 100 or so.
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Originally Posted by Big Mike
next,
I'm running a 3400 converter with 3.73's, 28" tire with a 300 shot, and the converter is a little on the tight side, that's why I think you can get a way with 4000. Either way, you can always get the verter reflashed if needed.
As far as chasing 8's goes... This winter I took over 200lbs outta the car and plan on upping the shot. Once the weather breaks, we'll see how she goes!
I'm running a 3400 converter with 3.73's, 28" tire with a 300 shot, and the converter is a little on the tight side, that's why I think you can get a way with 4000. Either way, you can always get the verter reflashed if needed.
As far as chasing 8's goes... This winter I took over 200lbs outta the car and plan on upping the shot. Once the weather breaks, we'll see how she goes!
Thanks,
SDB
SDB,
I thought the mild stall on my car was just a tad bit to mild. I considered sending it back for a reflash but then decided to go with a bigger shot of nitrous, so the 3400 ended up being a little better. I was going to go with a 3800 or even a 4000 and put a 29.5" tire on it but with extensive track testing I think she is set up optimal right now. I intend to up the shot yet again, so the 3400 with a 28w" tire ended up being just right. The converter is a TCS (no longer in business).
I thought the mild stall on my car was just a tad bit to mild. I considered sending it back for a reflash but then decided to go with a bigger shot of nitrous, so the 3400 ended up being a little better. I was going to go with a 3800 or even a 4000 and put a 29.5" tire on it but with extensive track testing I think she is set up optimal right now. I intend to up the shot yet again, so the 3400 with a 28w" tire ended up being just right. The converter is a TCS (no longer in business).
