Wanting a street performance jeep as well - Page 2 - JeepForum.com
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post #16 of 17 Old 08-14-2011, 11:47 AM
Dryseals
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1980 CJ7 
 
Join Date: Apr 2010
Location: Texas
Posts: 800
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Originally Posted by Galligher View Post
That rocks! I don't think I will get it that fast any time soon. With autos,anyone run a smaller stall for the converter but bigger than stock? Was thinking around 2000rpm if I run an auto vs manual.
Why? Higher stall is going to ruin any drivablity for off road use or in the snow, stick with the stock. The only time you want a higher stall is if the motor requires it. So unless your adding some kind of lumpy cam, stick with stock.

The more you try to get out of the engine, the more things you'll need to make it work right. Think about headers, once you start shifting the torque curve upwards, you need better exhaust flow, your jeep is not exactly made for it unless you start hanging things out of the bottom.

You'll add more complications in the build and may not see the results. Build your engine to fit your vehicle, not the other way around. A stock 350 will have more than enough power to sit you in the seat tight. In fact, if it was me, I'd be looking to shift the torque to be higher in the lower RPMs. You'll still have plenty of motor for the street.

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post #17 of 17 Old 08-14-2011, 06:26 PM Thread Starter
Galligher
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1995 YJ Wrangler 
 
Join Date: Apr 2011
Location: Delaware
Posts: 20
Yep, I understand the whole cam LSA/lift/duration- carb single plane/dual plane - fuel injection long runner/short runner effects on running a stall with a torque converter. I have had turbo cars that the stall did a good job of building boost with the brake on! In looking specifically at the 5.0 or 5.3LS, they both really need a cam/spring swap as junkyard engine pulls. I have much more experience with the 5.0 and know many gt-40P builds with good results with the A231 or Crane 2031 (forget the exact number?) cam and long tubes for good all around power/torque.
In building the entire package, I need to know about driving a 4wd vehicle with a stall. I have zero experince with 4wd vehicles. I would think driving a high stall converter would be a pain off-road. But I would like to have a little bit of a stall to get a little extra kick on the road. Again, on the street a 2200rpm stall is pretty mild if it is a good/efficient converter. But a stall off-road (even though I will only maybe be 5% offroad) may be a big no-no. I don't know. If that is the case, I will probably really consider the manual. I really like the Wrangler, I just want to REALLY smoke the 18 year old in the stock eclipse with the "fart can" on the back to the next light...
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