RMR intake/IC piping/exhaust - gain or loss of power when put on a stock Evo?
Aug 27, 2003, 07:26 PM
#17
Originally posted by JRock
I know for sure that if you do the RMR turbo back (with stock cat) and the RMR intake your car will sound awesome!
I know for sure that if you do the RMR turbo back (with stock cat) and the RMR intake your car will sound awesome!
But if I hold off on the boost business, I don't want to give up any power just to have better sound.
Aug 27, 2003, 07:30 PM
#18
Originally posted by 50cal
So if I just bolt on a cat back exhaust and downpipe (stock cat for now), no boost controller........I'm going to lose power or just won't realize as much gain without a controller?
Interesting.
So if I just bolt on a cat back exhaust and downpipe (stock cat for now), no boost controller........I'm going to lose power or just won't realize as much gain without a controller?
Interesting.
Aug 27, 2003, 07:31 PM
#19
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50cal: Exactly why I started this thread my fine turbo'd friend.
I want the intake and exhaust first since I won't have the money or really a need for engine management and ECU modding for a while after that. I just want to make sure that making the car sound even better and being able to hear the turbo spool and the stock BOV will be worth the money and not losing performance like a few people claim.
I rode in a car with the RMR intake, IC piping, and turbo-back exhaust that also had the ECU re-flash, and while that car pulled great, I've never ridden in a broken-in stock one so I don't know how much better it pulls and I also don't know if just the intake/exhaust mods gain/lose/do nothing without the ECU re-flash.
I have always heard that improved intake/exhaust flow will always help a forced-induction car, whereas an N/A car has the potential to lose low-end torque but gain some high-end hp.
I want the intake and exhaust first since I won't have the money or really a need for engine management and ECU modding for a while after that. I just want to make sure that making the car sound even better and being able to hear the turbo spool and the stock BOV will be worth the money and not losing performance like a few people claim.
I rode in a car with the RMR intake, IC piping, and turbo-back exhaust that also had the ECU re-flash, and while that car pulled great, I've never ridden in a broken-in stock one so I don't know how much better it pulls and I also don't know if just the intake/exhaust mods gain/lose/do nothing without the ECU re-flash.
I have always heard that improved intake/exhaust flow will always help a forced-induction car, whereas an N/A car has the potential to lose low-end torque but gain some high-end hp.
Last edited by JRock; Aug 27, 2003 at 07:33 PM.
Aug 28, 2003, 12:04 PM
#21
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Originally posted by JRock
Hmm, maybe someone with the resources (and time) should look into making and selling a heat shield that fits around the RMR intake, since it seems a fair number of people have it. Might be a good way to make a few bucks and help out fellow Evo owners at the same time!
As far as sucking air from under the car you need to be really careful because if you run through standing water you risk hydro-locking your engine. I generally just make a simple rule to stay away from anything like that to avoid the risk and time it takes to do it right.
[.....]
Hmm, maybe someone with the resources (and time) should look into making and selling a heat shield that fits around the RMR intake, since it seems a fair number of people have it. Might be a good way to make a few bucks and help out fellow Evo owners at the same time!
As far as sucking air from under the car you need to be really careful because if you run through standing water you risk hydro-locking your engine. I generally just make a simple rule to stay away from anything like that to avoid the risk and time it takes to do it right.
[.....]
As for the hydrolocking, yeah, it's a risk, especially if you relocate the filter. I was really only thinking of a piece of large diameter duct bringing cooler air to the engine compartment on the filter side of the heatshield. You'd need to be very unlucky or very stupid to get a hydrolocked engine with a setup like that. Still, I'm not sure there's enough space anyway in the Evo.
Aug 28, 2003, 12:27 PM
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Originally posted by Alfriedesq
The evo looses boost when you remove the stock muffler becuase of the flap inside the muffler which raises up the boost when you add a MBC or EBC you can raise the boost back up to stock levels and thats why you see big gains
The evo looses boost when you remove the stock muffler becuase of the flap inside the muffler which raises up the boost when you add a MBC or EBC you can raise the boost back up to stock levels and thats why you see big gains
I will say this car really needs some load to see 19psi stock like the AC being on and at least one other person in the car.
