Alright....I need a convertor.

[trapin]

Thanks Jake, that's good to know. That tells me I could probably stick with this convertor after all. I also think that when I talk to these people whether it's at a trans shop, or local parts store, or the people over at LS1tech, they always think you have a drag car and give you "drag racing" answers. And telling them that you have a Pro-Touring car doesn't seem to faze them. When I posed this question at LS1tech and told them it was NOT a drag car but a Pro-Touring car...some guy actually came in and told me to consider a 4000 stall. Unbelievable. In one ear and right out the other.



Tom I'd love to do that, but I need that extra coin for other parts. When this car is done, I'm going to be in a 2 or 3 year process of paying off debt. By then it will be so long since I wrenched on it that I won't mind pulling the trans and dropping the extra dough then. Plus I could always sell the Boss Hogg on eBay or LS1tech. I bet I could get a bill for it from someone on a budget.

[hotrdblder]

tony, is the tranny used or rebuilt? that cam is not that much bigger then stock, **** if it was a used tranny (which btw i have no issues with a used tranny as these 4l60e's,and 80s are good, i would throw a shift kit in and run the same convertor that came with it) most GOOD salvage yards give 90 day to 6 month warrantys and in your case i would seek that route, **** i think steve has a used 4l60e in his that he cant blow up, its been in since 2002 when he created the shrifter.

[Steve Chryssos]

I'm gonna try really really hard to blow that tranny up on Thursday at the XV event.

Tony,
I need to run some calculations to formally recommend a stall speed for you. I do believe that you would be better off running a stock vette or Z28 converter. At least with a factory converter, you'll know it is highly efficient. There is simply no way to know for sure what you will get for your $330. Don't ignore the importance of a component that has the high stress job of coupling your engine and transmission. Torque converters really deserve high priority status on your shopping list.

Mor tomorrow. It's 10PM and I just got home from the shop. Gotta juggle XV car prep with SEMA prep.

[Steve Chryssos]

Tony,
Crusing around town--and assuming you drop into overdrive at 45 miles per hour, your rpm will be around 1500. At 65 mph, your engine will be turning approximately 2200rpm. Wind resistance increases in relation to speed, so the gear calculations could be off at 80 mph. The calculator says 2700 rpm. Regardless, all of the numbers are below 3000rpm.

Point is, a 3000 stall torque converter, while useful for wide open throttle and or non-overdrive applications, will be sloppy at low speeds and part throttle in overdrive. This is especially true if it is a bargain basement low efficiency converter. I would really like to see you run 2400-2500 stall. As for the 3000 stall converter stalling at 2400, it sounds like sales speak for: "I have a 3000 stall converter on the shelf, so I will tell you what you want to hear." Also a 12" diameter converter in a hot rod Camaro is downright obscene. It will rob a good amount of power.

As stock vette or Z28 converter will stall closer to your requirements and post very high efficiency numbers. Down the line, when you are ready for one of my converters, I will sell you a 10.5" 2400 stall converter that stalls close to 2400rpm. Not a 3000 stall converter that will somehow stall 600 rpm below its rating.

Sorry for the delay in responding. Things are crazy here pre-SEMA.