Inliners International Forums General Discussion Blown and Injected Dream HP/TQ Figures

Hey guy's can I make the same HP/TQ as the new 6.0L V thing in the new Trailblazer SS with only a 250? They list SAE NET at 395hp and 400lb/ft torque. I really don't want/need this for racing but just to be able to tow. Max towing capacity forthe TBSS is 6700lbs for 2WD. I'm getting a 700R4 set up to tow in 4th and take lots of HP/TQ. I'd like to stay within 12lbs boost using EFI and intercooler and water/alcohol injection if needed. What ya all think?

It can be easy to make those figures.

I would like to get that 700R4 with the 5th gear, where did you find that? :rolleyes:

MBHD

Hank:
I was looking at Mad Dog transmissions. Seems they are not on eBay anymore but many just like them that have a towing trans such as GoodFellows and G Men. Would you think that I would need a higher stall with towing since I would need to get it up into the boost range to make some torque with?

Well,,,
a higher stall will cause worse gas mileage around town.
But on the open highway it should not make any differece since it will lock up(the converter).

I was being sarcastic about the 5th gear, they do not have a 5th gear. :-)
Are you going to turbo, or supercharge it?
MBHD

Randy

Sure you can! i did 312 HPs and 368 lbft (on wheels). but i used a little more boost 14,5 psi


Edy

DUH................. Yea, well I try to proof read my post but, seems like this one got away from me. :rolleyes:

I guess with a Gear Vendors unit it would be an 8 speed. I've got the room but, not the bucks!

Hank :
Going turbo for my performance adder. I really don't want to crank it up too high. I would think the stall speed of a given torque converter would go up anyway from stock due to torque production.

Edy :
I guess that 15lbs would not be too much more than my 12lbs I had mentioned.

Randy S. Hager.....

Stall??, depends on your turbo selection & camshaft.
But ,,,even w/a stock cam & small turbo, you need @ least 2400 RPM stall to get decent quick spool up.
I would get closer to the 2800 RPM stall with a little bit bigger turbo & cam..

MBHD

[QUOTE]Originally posted by Randy S. Hager:


!

Hank :
Going turbo for my performance adder. I really don't want to crank it up too high. I would think the stall speed of a given torque converter would go up anyway from stock due to torque production.

Sure, it will go up(the rpm) but not by much.
What type of stall are you looking to get?

MBHD

Hank:
As soon as I can get my turbo set up and see just when the boost comes in then I can determine what stall will get just into boost and make addtional HP/TQ for towing. I hope I can do it this way. I would like to see it get almost 4lbs boost before it will grab and start to move. You guy's out there have way more experience than I have.

Randy S. Hager,
what turbo set-up are you going with?
A SPA turbo manifold?

MBHD

Hank:
If I can get that far, Yes I will use the SPA turbo manifold and a T-3. Looks like I'm going with my Offy and TBI and a header just to keep it up and running. I have a 1982 Chevy SWB Fleet side with integral head 250. I have the engine I was going to turbo on the engine stand. I'm going to use Larry's lumps and have SS 1.94 - 1.50 valves installed and unshroud the cambers so as to reduce the compression from 9.5 down to 9.0. Since I will be useing a 4.3L ECM and a small cap HEI that is made from a 4.0L marine 4 cyl HEI with 4.3L internals it will keep an eye out for detonation for me. I have a few other obligations to take care of then I will build the turbo motor in ernest!