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Will it hurt performance...No.. it will drive a little faster than a stock auto due to the gear swap.
Is a TC worth the money for a higer stall...Hell yes
If you are trying to save money, i understand... but you could probably buy a used stock verter on this board for 20-40 dollars, free if you want to pick it up.
Hptuners. I didn't change my shift points, only shift pressure for a little crisper shift. Once you tell the pcm you have 342s, it shifts normal.
I've had race(ing) cars for 20+ years. I know what a stall can do, just not in this vette. For drag racing (on/off the track) it's great, but doesn't suit my needs for the vette.
I have a baby cam on a 98 C5 A4 (221 @ 114) and don't have a stall converter---I' sure it would be faster with one and it is someimes difficult to hold at a stop because the brakes won't hold at the higher required idle(900).But I've gotten used to it and it works fine--I'm sure at some point I will install one but it is drivable without one.
so If I dont have HP tuners, I will have to pay a dyno shop to do it then?
yes. or get a preditor hand held unit. Hypertech (at least the older ones) didn't have a setting for 342s, only up to 315s. The handheld units are limited though and cost almost the same as just buying HPtuners.
When you swap the 342s, and before you can flash the ecm, you MUST drive in 3rd. If you put it in OD, your tranny will go into "limp" mode and shift like a sledge hammer. very disturbing to say the least.
not if it's already apart. If you're going to buy a converter anyway, get a 2800-3000 as suggested before. You won't notice a ton of difference and it will help the gettyup n go.
$600 is the standard price for dropping a tranny and/or rear end.
I had a mail order tune done for $25 plus postage both ways and it is working great with the stock converter. It is my wifes toy and it drivers perfect with the 3.42. Unless you are willing to live with the higher stall I would leave the stock converter in.
I put a set of 3.42 gears in with no Stall. I don't drag race the car at all and was not looking for all out performance. The reason I didn't install a Stall is because I didn't want the added heat and transmission slippage that comes along with it. Don't get me wrong, for all out performance at a drag strip I would have went with a Stall, but for a car used mainly for cruising and pleasure it isn't worth it too me. Going from 2.73 to 3.42 without a Stall was exactly the extra acceleration I was looking for.
not if it's already apart. If you're going to buy a converter anyway, get a 2800-3000 as suggested before. You won't notice a ton of difference and it will help the gettyup n go.
$600 is the standard price for dropping a tranny and/or rear end.
C'mon in the C5 for sale section you see high performance converters all the time. Typically people swap them out for even high stalls. I would go that route. Putting a stock one back in is a waste.
I use HP tuner software. Go to the speedometer section and put in the gear ratio you are running and bingo! While it does get the speedo right there are a lot of other things that use the MPH to calculate such as shift point tables.