Torque converter recommendation
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,493
Likes: 876
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
Torque converter recommendation
Hi and thanks,
Im getting close to ending my 15 year project. Im looking for a torque converter recommendation from anyone with a highly modified C4.
Heres what i have in a nutshell.
383 4bbl. GM fast burn heads, GM 383 cam (its .509I/.528E lift, 222I/230E dur), Full hedders.
Built 700r4 tranny, reverse pattern manual valve body. Lock up 4th only
3.07 gears.
Car is around 300 lbs lighter then stock (roughly).
Built for auto cross, but 99% street driven.
Thanks for your 2 cents!
Im getting close to ending my 15 year project. Im looking for a torque converter recommendation from anyone with a highly modified C4.
Heres what i have in a nutshell.
383 4bbl. GM fast burn heads, GM 383 cam (its .509I/.528E lift, 222I/230E dur), Full hedders.
Built 700r4 tranny, reverse pattern manual valve body. Lock up 4th only
3.07 gears.
Car is around 300 lbs lighter then stock (roughly).
Built for auto cross, but 99% street driven.
Thanks for your 2 cents!
Team Owner
Joined: Sep 2001
Posts: 62,139
Likes: 1,728
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
My engine is not terribly different, I run a 2400 PI Vigilante. For street, I wouldn't go much higher than that, and with your torque you shouldnt need more.
Advanced
Joined: Oct 2014
Posts: 94
Likes: 10
From: Tampa
Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
I kinda like Bow Tie Overdrive's TQ's. I think they are acceptable quality and they're only$250. I'm running one now w/2200ish stall on my Z28 and I have too much wheel when I launch and almost whenever I stomp on the throttle in 1st.
http://www.bowtieoverdrives.com/cata...SUBCAT&CATID=B
Good luck.
http://www.bowtieoverdrives.com/cata...SUBCAT&CATID=B
Good luck.
Race Director
Joined: Apr 2003
Posts: 17,699
Likes: 1,667
From: moraga ca
Another recommendation for the Vigilante (Precision Industries). I've been abusing a pair of converters for decades with full throttle lock ups in 2nd and 3rd gears on a 10 second car. Average 150 runs/year. Broken trannies but never a broken converter.
Team Owner
Joined: Jul 2004
Posts: 28,422
Likes: 3,275
From: Hartford WI
They have a nice policy of a free restall. So you break the trans and it craps all over the TC, they will clean it for you. Don't know what you want? Try what they recommend and if it isn't right, they will restall it for you.
I have heard about Yank also.
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Le Mans Master
Joined: Oct 2002
Posts: 7,098
Likes: 378
From: Las Vegas - Just stop perpetuating myths please.
Yea I was thinking in line of a daily street driven car. For and expensive stroker motor and purpose built trans I would spend more for one of the better TC's like Vigilante or Yank.
Good luck.
Good luck.
Team Owner
Joined: Jul 2004
Posts: 28,422
Likes: 3,275
From: Hartford WI
Having personally gotten in the middle of it before, I really try to stay away from a fight between 2 parties. Who is building your transmission? I would get their recommendation for the TC or at least buy it through them. When your transmission takes a dump, you might end up with the builder blaming the TC and vice versa. Get the whole system from one party if you can.
For instance, I would usually save money by buying a part and having a shop install but when I had a float sensor in my MB fail, I paid a little more to get them to install THEIR supplied sensor. Good thing too. 2 weeks later, it failed and "one more time, Baby" was at their expense. Had I supplied the sensor, they could have said "We installed it right. Get your supplier to warranty it." and the supplier would have said the installer screwed it up. Since it required a dropped tank, I decided to let them do the whole thing.
For instance, I would usually save money by buying a part and having a shop install but when I had a float sensor in my MB fail, I paid a little more to get them to install THEIR supplied sensor. Good thing too. 2 weeks later, it failed and "one more time, Baby" was at their expense. Had I supplied the sensor, they could have said "We installed it right. Get your supplier to warranty it." and the supplier would have said the installer screwed it up. Since it required a dropped tank, I decided to let them do the whole thing.
Thread Starter
Melting Slicks
Joined: Jul 2003
Posts: 3,493
Likes: 876
From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
Thanks for all the recommendations. Will look into it further.
The owner of a tranny shop up here in NY is the one thats building it next week. Waiting for the TCI master kit. Just got the reverse manual valve body yesterday......
Can barely sleep
The owner of a tranny shop up here in NY is the one thats building it next week. Waiting for the TCI master kit. Just got the reverse manual valve body yesterday......
Can barely sleep