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I pulled 276h/355t with a 350, stock heads and cam. You shouldn't be happy with your results. Find out why you aren't make the power that you should be.
I pulled 276h/355t with a 350, stock heads and cam. You shouldn't be happy with your results. Find out why you aren't make the power that you should be.
You said it, I was thinking the exact same thing. I dynoed 240rwhp/330rwtq with an untouched stock L98 engine.
I pulled 276h/355t with a 350, stock heads and cam. You shouldn't be happy with your results. Find out why you aren't make the power that you should be.
I'm not making the power because I'm not getting enough air. The motor is done at 4500rpm because of this. I have another thread discussing intake options if you want to contribute. Thx!
I thought they made 240 hp and 330 at the flywheel stock?
Sounds like gm underrated the power, or the dyno may not have been accurate.
Say what? I made 240rwhp/330rwtq at the wheels with my stock L-98 engine. The valve covers have never been off the car. There are other little mods, but no motor mods.
I thought they made 240 hp and 330 at the flywheel stock?
Sounds like gm underrated the power, or the dyno may not have been accurate.
1988 was 245/340 at the crank I believe Pete. When mine was stock/stock she made 212rwhp/321rwtq if my memory is correct. Just a tad underrated in the TQ dept.
Say what? I made 240rwhp/330rwtq at the wheels with my stock L-98 engine. The valve covers have never been off the car. There are other little mods, but no motor mods.
Those are exceptional numbers. To make the same numbers at the wheel that they are said to make the flywheel is exceptional.
I thought they made 240 hp and 330 at the flywheel stock?
Sounds like gm underrated the power, or the dyno may not have been accurate.
DITTO. Most of the L98 autos we see are lucky to crack 200. I can post a few graphs if need be.
As a side note, we do quite a few Imp SSs. They put down 230 HP roughly, untouched. Some not even that.
Anyone with a bone stock L98 auto making 240 at the wheels ought to be questioning the results. Those numbers are optimistic to say the least.
If you look at the graph, the HP peaks at 3900. The increase in cubes shows the intakes restriction even more. Again, same thing we see from stroker L98s with untouched intakes. Peak is usually 4200 or so. This one a little sooner. Maybe cause the cam is pretty mild.
Last edited by edcmat-l1; Apr 14, 2007 at 07:55 AM.
Say what? I made 240rwhp/330rwtq at the wheels with my stock L-98 engine. The valve covers have never been off the car. There are other little mods, but no motor mods.
DITTO. Most of the L98 autos we see are lucky to crack 200. I can post a few graphs if need be.
As a side note, we do quite a few Imp SSs. They put down 230 HP roughly, untouched. Some not even that.
Anyone with a bone stock L98 auto making 240 at the wheels ought to be questioning the results. Those numbers are optimistic to say the least.
If you look at the graph, the HP peaks at 3900. The increase in cubes shows the intakes restriction even more. Again, same thing we see from stroker L98s with untouched intakes. Peak is usually 4200 or so. This one a little sooner. Maybe cause the cam is pretty mild.
Read the thread. Don't get bent out of shape guys. It is, what it is. L-98's with the stock TPI's just dont make great power, plan and simple.
DITTO. Most of the L98 autos we see are lucky to crack 200. I can post a few graphs if need be.
As a side note, we do quite a few Imp SSs. They put down 230 HP roughly, untouched. Some not even that.
Anyone with a bone stock L98 auto making 240 at the wheels ought to be questioning the results. Those numbers are optimistic to say the least.
If you look at the graph, the HP peaks at 3900. The increase in cubes shows the intakes restriction even more. Again, same thing we see from stroker L98s with untouched intakes. Peak is usually 4200 or so. This one a little sooner. Maybe cause the cam is pretty mild.
I have seen my fair share of stock L-98 motor's on the dyno as well. Your right most auto's see around the 200rwhp mark.
I have seen my fair share of stock L-98 motor's on the dyno as well. Your right most auto's see around the 200rwhp mark.
So picking up 60rwhp/40rwtq with 33 extra ci, a teeny cam and headers is bad? I'm sure that a good intake would put me over 300rwhp, so I'm not concerned that something is "wrong" with my engine... That's why I started another thread about intakes.
Those are exceptional numbers. To make the same numbers at the wheel that they are said to make the flywheel is exceptional.
He has longtube headers, free mods and a catback thus the higher numbers.
Stock with nothing except the frisbee delete and a seeping headgasket the old 89 made anywhere from 224 to 232 hp and 321 to 332 lbs tq depending on engine temperature.