Can't drive over 100mph
 

For some reason I can't drive over 100mph anymore. A few months ago, I had my car up to 120mph and all I had done was a custom cone filter intake and Bosch Platium +4 plugs. I have an automatic with 90k miles on it. About a month ago, I changed my timing belt and water pump. At the same time I put on a RRM pulley, Ingen SRI, and Mangacor 8.5mm spark plug wires. Now my car just sits on 4,000 rpm and won't go faster than 100mph. There are no odd sounds, no jerking, nothing, it just doesn't rev past 4,000rpm in 4th gear. What in the hell is wrong?

Sorry to the guy I talked to at RRM, I just need a second opinion before I buy new coil packs.

Thanks to everyone for your input.

I dunno what to tell yah. mabey you were goin up hill... mabey the day you tried this was hot and humid. lotta factors really. coulda been driving into the wind.

Lol^

Not up hill. Just wide open, flat, and straight. Sat at 4k rpm for like 20 second and nothing.

its probably for the best:D j/k

Good

Man, that sucks... Nothing like crack'n 120 on the open hwy! NOT! Keep it on the strip...

+1 ^

Seriously, it is hard to say what the problem might be - did you reset the ECU when you changed everything out?

Don't worry ya'll, I'm not street racing or anything stupid. I had 3 and 1/2 miles of four lane interstate, no cars in sight, and nothing but been fields all around me. It was as safe as triple digits are going to be for me.

Yes, I reset my ECU. RRM said it might be the coils, but it revs past 4k in every other gear.

there nothing like doing 164;)

It's probably your stock exhaust. It's bottlenecking. You have opened more air into the car, but it cannot expel it fast enough through the exhaust. This happens to auto tranny cars.


Coil packs are NOT the problem. If it's the problem, you'll be misfiring or feel the coil pack burning up. Yes, it'll be hot enough to scold your fingers.

Dude are you serious?

How does the stock car do 150?

How does any of this apply to auto tranny cars.

Scorke

I don't know about 150, but I have flirted with 110 in my car before have to back down the speed a bit.

Thank you bahamut. That's the first answer I've got that make's pretty good sense. How much exhuast would you recomend; alxe-back, cat-back, header, high-flow cat, or something custom?

Who said anything about 150? I wrote 120, BIG difference. I think most of us would need a little bit more engine for 150, and I wouldn't do 150 in my Lancer even if I could.

stop breaking the law. physics backs the government agenda.