I built a 2004 Ralliart into a circle track car a few years ago and I won a few races but it never handled great. I traded it to my cousin and he put the engine and tranny in a 92 eclipse with the ralliart wiring and it is now the dominant car at our track. Problem is the engine blew and we put in one from a 2008 eclipse keeping the ralliart intake. Only problem is it is now hitting the rev limiter at the end of the straits. Same tranny tires and everything else but the tack is reading a little higher than before. Anyone have this happen before?

 

I don't get your question...so it hits the rev limiter at the correct rpm, just not the correct location on a track?? that doesn't really make sense, and it's not a problem with the engine...

 

It never hit the rev limiter with the ralliart engine. Still has same tranny tires computer and intake the only difference is the bottom end and head is from an 08 eclipse and now it hits the rev limiter.

 

that doesn't make sense...the motor needs to have a rev limiter...if it didn't, something was wrong, and that would be why it blew up...

 

That's my point it doesn't make sense at our track it only hit 6700 rpm before and now it's higher. It didn't blow because of rpm's the day it blew we were at a smaller track and only hit 5500 before going into the turns.

 

I still don't know what your talking about...

 

Guess I'll try this one more time. Lol. At the track we run we were hitting 6700 rpm's with the ralliart engine and tranny. It blew up and two weeks later we go back with a 2.4 Mivec from a 2008 eclipse and now we are hitting the rev limiter well before the turns. Is there some sort of sensor on the eclipse engine that could be giving the ralliart computer a bad reading and false rpm reading?

 

It's just that your "data" is by the seat of your pants, and contradictory...you say with the original motor you were hitting 6700, and with the new motor, your hitting the rev limit before a turn...is it 6700 still? what's the miles per hour before an after? what gear are you in? Your not giving enough information...if you're using the same control harness, there can't be any extra sensors. is it not possible that your just going faster, and nothing is wrong? maybe your old motor was not running right, since it blew up shortly after. and now you have a new motor running properly, and it's making the car a little bit faster...

 

Don't worry Crans. You're not going crazy. I'm not understanding the question either

 

Is it getting up to the rev limiter faster now? Or is it hitting the rev limiter at a different RPM now? If its getting there faster are you using an underdrive pulley? I know when I installed mine it made the RPMs raise much quicker than before.

List us the mods to the engine at what points you are hitting the rev limiter at.

 

I thought I was having one of my classic, "I didn't really read the post, I just sort of skimmed it, and posted anyway" moments...

 

Same tranny as before 3rd gear same lap times same tires. Its not seat of the pants its amb transponder (lap timer). 6700 rpm with old engine the new engine is hitting high rpm's can't say for sure as the needle bounces a lot up there. Again with everything the same except engine.

 

What about the mph? At what speed were you hitting the rev limiter with both engines, if its the same speed then wouldn't that just show that your car is just quicker with the new engine? As in your new motor just gets the car to that speed faster. My solution= shift lol

 

so nothing has changed? at all? No under drive pulley anything?

I wonder if the 2008 eclipse has a different cam? Cause didnt the 04 and 05,06 models have something different about the cams?

Are you using the eclipse exhaust manifold? different spark plugs? different injectors?

Something has to have changed, or your car is just faster now for some reason...

 

Same speed and lap times. Ralliart intake and aftermarket header same as before. I can't see where any of that matters though 80 mph in 3rd gear should mean xxxx rpm it shouldnt have changed. It's 7/16 mile paved oval and I've seen people try to shift and it doesn't work. We run Hoosier 790's 23" but they also come in 24" and that woild fix the problem of hitting the rev limiter but it doesn't explain why it's changed.