519 AWHP- So far....

[Kracka]

Sounds good so far!

[EclipseGST]

Nice numbers Mr. Hill... Are you using AEM or link and what fuel pump are you running?

Its good to see the car out of the garage and "almost" ready for the track!

[Swifty1638]

Well, it MUST be the EMS to control the 16,000 injectors he has stashed in that car! as for pumps..2 255's?

-A. Swift

[TheBlizzard]

I have yet to see any real evidence that the 2.4L has longevity problems. Keep an honest rpm limit of 8500 and it should last as long as any 2.0L at 9000-10,000 rpm. I wind my 2.4L LR up to 8000-8500 and it just seems to love it. Marco (Magnus Motorsports) told me once about a guy that bought one of his long rod 2.4L engines spinning it up to 10,000+ rpm in Australia with no problems, but that might be where longevity could be an issue.

Of course rpm has some to do with the motor going if you are reving the shit out of it all the time but I think running really high boost has more to do with it. In Steves case if he keeps it around 30-33psi give or take it should be fine with a good tune. The failures you read about are usually people that are in the 35psi-40+psi range.

Its seems like half the DSMs you read about in the high 9s and low 10s are running that 3575.

[1ViciousGSX]

But is it due to high psi or a bad tune with high psi?

[Goat Blower]

Congrats Steve. Now go trap 140. 11.9 at 140!

That's exactly what I told Shane and Dan.

[Goat Blower]

Congrats, how many miles on the 2.4?
Longevity of the 2.4 is the only thing that really worries me.
Can't wait to see what your final numbers/powercurve looks like.

About 1500 miles. The other 2.4 I built at the same time has around 10K miles at a similar power level and gets flogged on the streets of Duluth regularly. They seem to hold up fine.

[Goat Blower]

Great work Steve. Did you try doubling up T-band clamps on that hose? What timing were you able to get out of it?

There's no room to put a second clamp on there with the 90 degree bend. There's barely enough surface area to clamp the coupler to, plus it's a hard 90 bend, so the boost is probably trying to push down on the pipe as well. We'll get that taken care of this week.

Shane would know the timing numbers, I just brought it down to the shop and parked it and drove something with air conditioning home. :cheer:

[Goat Blower]

Nice numbers Mr. Hill... Are you using AEM or link and what fuel pump are you running?

Its good to see the car out of the garage and "almost" ready for the track!

AEM. 1600cc injectors, 720cc secondaries not wired up yet, didn't need them after all. (2) walbro 255HP's in tank T'd together.

[Goat Blower]

But is it due to high psi or a bad tune with high psi?


I'd say bad tune normally, but some 2.4's have just had cylinder wall cracks from a possible bad casting like Mo's.

We set the rev limiter to 8000 for the dyno, but I was running it up as high as 8500 rpm last year.