01 3400 Dyno chart

[3400-95-Modified]

Does this HP output seem low to anyone??

This is a 01 3400 that I built for my beretta, they dyno chart has a few runs in there with a 75 shot and then 100 shot of nitrous, so really only pay attention the the 3 lowest runs.

These were all done with a stock 4t60e, 2.97 gearing, with a 1650 stall converter and rather heavy 16" wheels, approx 50-55lbs each.

Reason I'm asking is because this car will only do a 15.6 at best n/a and thats after changing to 3.33 gearing and a 2060 stall and way lighter rims.

I'm thinking I did something wrong and its not putting out the power it should be. It seems quite flat after 5200 on the street.

[bszopi]

If you are running the stock 95 PCM, then I'd say that's your restriction right there.

[onefastV6]

Not sure what all is done to your engine, but my 01 Grand Am with the 4T45e put down 143.2 HP with the only mod being a borla catback.

[3400-95-Modified]

Yeah I forgot to list mods, but they mods are FFP Underdrive pully, Tranzgenic cold air intake(doesnt really apply to a dyno run) 2 1/2 downpipe and 2 1/4 exhaust, hollow cat, Mororso spiral muffler and a Flowmaster 80 series. All poly motor mounts, minus the tranny mount, 99 3400 injectors, and at that time i was running the 55psi FPR.

My 95 3100 with a 3400 top end put down 150hp with 150 torque, and that was with approx 160k on the lower end.

So with my motor swap I lost approx 6hp, and gained only 18ftlbs of torque.

I am working on eliminating the 95 ECM I know that hurts a lot, but I'm just lost because in its current state the car will only do a 15.6 at best, and a friend with a Z26 with a 04 3400, same bolt ons minus his exhaust is a borla bullet, and a cat but a 2" intermittent pipe, and Stock trans/converter and he was able to pull a 14.96 with only removing interior, seats, carpet and spare tire.

I'm not sure if the 01 vs a 04 3400 may have less power.

[SappySE107]

How is your 3100 putting 150 to the ground? Mods?

[torq455]

Not sure what all is done to your engine, but my 01 Grand Am with the 4T45e put down 143.2 HP with the only mod being a borla catback.

Don't forget about different axle/gear ratios ya'll. Same engine with the different tranny will give you different dyno #'s and track times.

[3400-95-Modified]

How is your 3100 putting 150 to the ground? Mods?

I don't know. It was all the same mods as what I have now, with a 2" down pipe, stock 3100 manifolds, and it was a 3100 with a 3400 top end, intakes only. Oh and only a WAI

I now have a full 3400 .030 over so its not even the same block or anything.

I have the dyno chart if you want a scan.

My first ever dyno with the 3100 stock, was 123, my second one with the 3400 top end like 20k later was 150, 152 And I dont think he caught that on peak either.

[torq455]

MOD--LSD from who and how much?

[3400-95-Modified]

EP I paid 499 during the winter.

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