View Full Version : ****Precision of New Hampton custom 3500 stall****Help!
SVT THIS
03-21-2006, 02:38 PM
Ok, hopefully I got your all's attention. I am in the market for a stall converter and was calling some local auto tranny shops to get some quotes on a stall install. For the most part it was around $300 with new seals and fluids. However, one of the shops told me they had a converter they would sell me and install for $550. The converter was custom made by PRECISION of NEW HAMPTON. Its stall is 3200-3500. The backstory on it is that it was installed on one of their customers cars and when he decided to upgrade to a higher stall they kept that converter. They will sell me the converter outright for $200 and install it with new fluids and seals for $350, making the total price for converter/install $550. What would you all do? Is 3200-3500 a high enough stall to see great performance numbers with LT headers, LS6 intake, Lid, TSP MS3 cam and (possibly) 4.11 or 4.56 gears?
hammertime
03-21-2006, 03:16 PM
If they are standing behind the converter and their work, it doesn't sound like a bad deal to me. I don't know how much they are charging for the trans R&R, but I can't imagine a front pump seal and a refill is a lot.
4.56 is an awful lot of gear in an auto tho - are you running the 1/8th mile?
SVT THIS
03-21-2006, 04:06 PM
Its a daily driver
hammertime
03-23-2006, 08:29 AM
A4 in overdrive at 65 mph
2.73 = 1624 rpm
3.23 = 1922 rpm
3.73 = 2219 rpm
4.10 = 2439 rpm
4.56 = 2713 rpm
A4 in overdrive at 75
2.73 = 1874 rpm
3.23 = 2217 rpm
3.73 = 2561 rpm
4.10 = 2815 rpm
4.56 = 3131 rpm
A4 in drive at 110 (1/4 trap approx)
2.73 = 3927 rpm
3.23 = 4647 rpm
3.73 = 5366 rpm
4.10 = 5898 rpm
4.56 = 6560 rpm
Just so you know what you are getting into. Those gears and that cam are overkill for a daily driver, unless you drive 5 minutes to work each day. That's a drag combo you are talking about. Sure would be fun for a while, but that thing is gonna be screaming if you are doing any real commuting.
That setup with 3.73 gears and a 224/224 cam on a 112* would be fantastic on the street, and still be civil enough to be a true driver. Dropping 13 degrees intake duration and 18 degrees exhaust will do that.
If you are being honest about it being a daily driver, and you are not planning to build a track only car, then you may want to consider less cam and less gear.
nhraformula
03-23-2006, 07:33 PM
what you have listed is more of a drag set up.
for daily driver, nothing bigger than a 373 rear gear, cam up to 230/230 and a 3500 stall.
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