Dyno Guesses & Bench Racing Forum - Dyno guesses

01 formula a4 4k stall 3.23 gear 1 3/4 longtubes ory with dump before axle lid 85mm maf 225/229 cam 581 591 lift 114 lsa stock 241 heads and ls6 intake

I'm gonna guess 365-370 because of the stall and 1 3/4" LTs. High stall TC's are fantastic for the 1/4 mile, but they make the dyno numbers misleading sometimes.

Any previous dyno numbers?

No I can get u times
Before stall and running full exhaust thru a flowmaster I was running 8.3 all day at 86-87mph on street tires with the headers and lid..most people I race with at my local track say it runs better than most for what's done

And how much would 1 7/8 gain over the 1 3/4

1 7/8" wouldn't gain enough to be worth the price of changing headers right now, but it's something to keep in mind if you ever find yourself lacking a little bit later down the road. Like if you decide to do heads and/or a bigger cam and such.

Any significant lack you might see on the dyno right now will be from the stall instead of the longtubes. I don't think 1 3/4" to 1 7/8" should be any more than a 5-8 rwhp difference with your current build.

Not looking to make crazy power would like to hit 400 to the wheel with my stall

Would a set of 243 heads and underdrive pulley be enough

If you add that to the equation, yeah it should bring you damn close if it doesn't clear 400. Find some ported 243's if you can, that should net you more gain off of them.

im gonna guess anywhere between 375-400rwhp depending on your tuner?:chug:

If you got a set of 243's I think 400 at the wheels would happen. Having them ported would definitely help out.