Torque converter- do I need a different one?
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,193
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From: Pittsburgh PA
Torque converter- do I need a different one?
Alright, here is my engine set up (what it WILL BE, anyway); hopefully pushing 450 hp, but I have no idea.
383 stroker
Holley 750
Edelbrock Performer RPM
AFR 195cc aluminum heads
Forged pistons+rods, 10.5:1 CR
I have a stock TH350 transmission, with what I assume is a stock converter. I will be driving this car on the street, but also bringing it to the strip now and then. Should I stick with the stock converter or buy a different one? If so, which?? :confused:
Thanks!
Jerry
383 stroker
Holley 750
Edelbrock Performer RPM
AFR 195cc aluminum heads
Forged pistons+rods, 10.5:1 CR
I have a stock TH350 transmission, with what I assume is a stock converter. I will be driving this car on the street, but also bringing it to the strip now and then. Should I stick with the stock converter or buy a different one? If so, which?? :confused:
Thanks!
Jerry
Le Mans Master
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From: Semper ubi, sub ubi
Cruise-In VI Veteran
Cruise-In VII Veteran
Re: Torque converter- do I need a different one? (jerryjfunk)
Jerry, I don't know which cam or rearend ratio you have, but if it is a stock ratio rearend (3.08) then you probably could use a higher performance convertor. A B&M Torquemaster 2400 is a fairly inexpensive convertor that will give you good performance on the street for about $150.00. TCI makes a good convertor also I think it is a little more expensive.
IMHO, a 2400-2600 convertor is about as high as you want to go for street driving. A 3000 would perform better on the strip, but sure would make street driving more difficult.
IMHO, a 2400-2600 convertor is about as high as you want to go for street driving. A 3000 would perform better on the strip, but sure would make street driving more difficult.
Team Owner
Joined: Jun 2001
Posts: 43,136
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From: Thomson Georgia
Re: Torque converter- do I need a different one? (page62)
I really like my TCI Break a way.....2400 stall........Just depends on the car and the gear...I am running mine with a 3:73 rear :cheers:
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,193
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From: Pittsburgh PA
Re: Torque converter- do I need a different one? (Smokehouse69)
Yep, as far as I know it's the 3.08, and street drivability is more important to me than strip performance. Thank you for the advice! Does anyone else have some input?
EDIT: I just read in the for sale section that Mike has a 2300-2500 B&M for sale http://forums.corvetteforum.com/zerothread?id=347353 But I just read B&M's description of it, and it says "for mild performance under 350hp". The only ones that take more power are higher stall speeds... :confused:
About page62's comment... does anyone know how much power a stock TH350 can take? I won't be using slicks, but I plan on getting wider rear tires than my current 225/70/r15's.
Thanks!
Jerry
[Modified by jerryjfunk, 4:43 AM 7/26/2002]
EDIT: I just read in the for sale section that Mike has a 2300-2500 B&M for sale http://forums.corvetteforum.com/zerothread?id=347353 But I just read B&M's description of it, and it says "for mild performance under 350hp". The only ones that take more power are higher stall speeds... :confused:
About page62's comment... does anyone know how much power a stock TH350 can take? I won't be using slicks, but I plan on getting wider rear tires than my current 225/70/r15's.
Thanks!
Jerry
[Modified by jerryjfunk, 4:43 AM 7/26/2002]
Drifting
Joined: Feb 2000
Posts: 1,607
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From: Clarksville,Tn,USA TN
Re: Torque converter- do I need a different one? (jerryjfunk)
Go to car craft and read the artice on "Whats up with stall" in the tech section http://www.carcraft.com
Gives a simple overview.
Click on car tech in the box on the top of the left hand side of the page and a drop menu will come up and click on tech articles
Neil in Tenn
[Modified by Nomad78SA, 5:30 AM 7/26/2002]
Gives a simple overview.
Click on car tech in the box on the top of the left hand side of the page and a drop menu will come up and click on tech articles
Neil in Tenn
[Modified by Nomad78SA, 5:30 AM 7/26/2002]
Melting Slicks
Joined: May 2002
Posts: 2,431
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From: Florida
Re: Torque converter- do I need a different one? (Nomad78SA)
th350 will be fine on 450hp as long as you dont go grabbing second gear at too high mph. The band with scrorch or snap. Breaking the sprag is also a weak link but again avoid abrupt downshifts. I'm assuming your trans is in "good" cond. and not a 90k miler. I shift kit would make for less slippage also and provide a nice firm shift. 2300 rpm stall about as high as I would go. Dacco, TCI and B&M all make good products. Keep in mind two diff. engine combo's with same convert. will stall at different speeds. Read the article mentioned by "Nomad78SA".
Good luck and change that front seal every time. Pump O-ring too if you know how. Save you a leak later that would mess up your driveway overnight. Front seal will leak as you drive.
:seeya
Good luck and change that front seal every time. Pump O-ring too if you know how. Save you a leak later that would mess up your driveway overnight. Front seal will leak as you drive.
:seeya
Instructor
Joined: Nov 2001
Posts: 190
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From: Troy IL
Re: Torque converter- do I need a different one? (jimvette999)
Here's a question. I just read the converter article and the editor says "Heavy cars with tall (numerically low) gears..." I thought the higher the number, the taller the gear became. I'm running the stock '79 auto gearing which I'm assuming from what I read is 3.55. I was always told my gears are taller than 3.08s not steeper. Could someone verify this to me? I always thought taller meant numerically higher gears. :confused:
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Le Mans Master
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From: Coming home from Luckenbach Texas
Re: Torque converter- do I need a different one? (Phoenix79)
A taller gear means your engine is turning lower rpms. That's why overdrive has always been considered "tall." So if you're talking about rear ends, 3:08 would indeed be taller than 3:55. :smash:
Thread Starter
Melting Slicks
Joined: Mar 2002
Posts: 3,193
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From: Pittsburgh PA
Re: Torque converter- do I need a different one? (jimvette999)
Thanks Neil, I'm reading that article right now.
Jim, what do you consider too high mph for shifting into 2nd....? :D
Jerry
Jim, what do you consider too high mph for shifting into 2nd....? :D
Jerry
Intermediate
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From: Montgomery AL
Re: Torque converter- do I need a different one? (jerryjfunk)
Jerry, I'm @ 430 hp w/ the 72 and I use a TCI Street Fighter - Stall rating is 3000 rpm - keeps it streetable but makes for a he!! of a ride when you want it :jester
Melting Slicks
Joined: May 2002
Posts: 2,431
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From: Florida
Re: Torque converter- do I need a different one? (jerryjfunk)
Jerry,
I'm sorry. After reading my own post it appears as though I was talking about the upshift. I meant downshifting is hard on certain parts.
You can UPSHIFT the TH350 as high as that motor will wind!
Jim
[Modified by jimvette999, 8:08 AM 7/27/2002]
I'm sorry. After reading my own post it appears as though I was talking about the upshift. I meant downshifting is hard on certain parts.
You can UPSHIFT the TH350 as high as that motor will wind!
Jim
[Modified by jimvette999, 8:08 AM 7/27/2002]
