Rear mount 530whp Turbo IS-F anyone?

[OnURleft]

Aesthetically beautiful, functionally questionable....









Questionable, but still badass

[DeeAOne]

i never understood how you can make "good" power off of a rear mount turbo. someone enlighten me please.

[mark ryan7]

man those is-f's are pure sex!

[pr8yr]

WO! damn!! I like it. Forget questioning yo. I would hop on this thing any day.

[OnURleft]

WO! damn!! I like it. Forget questioning yo. I would hop on this thing any day.

Yeah it looks amazing, and 8 gears + luxury and 530 rear mounting rwhp sounds interesting

[1SICKLEX]

Aesthetically beautiful, functionally questionable....

DAAAAAAAAAAAAAMN!!!!!!!!!!!

[1SICKLEX]

Artisan Performance TT'd IS-F from www.speedlounge.com's HIN San Mateo coverage.

Guy lives in Cali. supposedly puts down 600hp +

[Drummerboy]

I personally dont like the rear mounts. Simply because of loss of efficiency due to heat transfer from exhaust pipe to IC pipe, since they run side by side more times than not. case and point, the firebird STS kits.

Does anyone think Rear mount>front mount? if so why?

[DirtyMechanic]

I personally dont like the rear mounts. Simply because of loss of efficiency due to heat transfer from exhaust pipe to IC pipe, since they run side by side more times than not. case and point, the firebird STS kits.

Does anyone think Rear mount>front mount? if so why?

rear mount is more efficient by the way. less heat is made due to the turbo is cooler and the piping going back the front is the intercooler. so a front mount is usually not needed. the farther you get away from the motor the more efficient it is. but less response aka more lag. turbo seal last longer due to the turbo all around is cooler. no real need for a turbo timer.

but i still never and will probably never like remote mount turbos due to the oil supply and drain system. mainly the drain system. i always see the electric oil pump not work for a few minutes for some reason and let the oil back up and blow the oil seals out. and for that reason i will probably never like remote mount.

[Drummerboy]

rear mount is more efficient by the way. less heat is made due to the turbo is cooler and the piping going back the front is the intercooler. so a front mount is usually not needed. the farther you get away from the motor the more efficient it is. but less response aka more lag. turbo seal last longer due to the turbo all around is cooler. no real need for a turbo timer.

but i still never and will probably never like remote mount turbos due to the oil supply and drain system. mainly the drain system. i always see the electric oil pump not work for a few minutes for some reason and let the oil back up and blow the oil seals out. and for that reason i will probably never like remote mount.

I understand its Intercooler piping, but If you have exhaust piping running within inches of the intercooler pipe, you're going to have massive heat transfer across the length of the pipe.
Basically, its diffusion of heat until both pipes are equal temp.
So wouldn't a normal front setup with maybe a cold air intake from the turbo be more efficient than a (remote?) mount?

I'm just trying to understand, not debate, please dont take it that way.

[DirtyMechanic]

I understand its Intercooler piping, but If you have exhaust piping running within inches of the intercooler pipe, you're going to have massive heat transfer across the length of the pipe.
Basically, its diffusion of heat until both pipes are equal temp.
So wouldn't a normal front setup with maybe a cold air intake from the turbo be more efficient than a (remote?) mount?

I'm just trying to understand, not debate, please dont take it that way.

no wrong way taken. the pipes would never be equal temps. there would have to be crazy amounts of heat in order to even warm up the charge pipe. i would be more worried about other things under the car, maybe inside the car melting and burning. dont forget about the turbulence from the air under the car. but usually the exhaust and charge pipe are run on opposite sides of the driveshaft tunnel. aluminum dissipates heat very well. so the transfer of heat even an inch away is minimal. but now if they were touching that would a different story. but even then the charge pipe being aluminum will probably not even notice the small spots of heat. i bet the intake air temps are maybe a few degrees above ambient a max of probably 10 at higher boost pressures.

[Capt._Ron]

no wrong way taken. the pipes would never be equal temps. there would have to be crazy amounts of heat in order to even warm up the charge pipe. i would be more worried about other things under the car, maybe inside the car melting and burning. dont forget about the turbulence from the air under the car. but usually the exhaust and charge pipe are run on opposite sides of the driveshaft tunnel. aluminum dissipates heat very well. so the transfer of heat even an inch away is minimal. but now if they were touching that would a different story. but even then the charge pipe being aluminum will probably not even notice the small spots of heat. i bet the intake air temps are maybe a few degrees above ambient a max of probably 10 at higher boost pressures.

Heat transfer at an inch away from the exhaust definately wont be minimal. I have seen a turbo'ed miata's exhaust transfer so much heat to the trunk that it melted plastic cups stored there. Im not saying that the intake temps would differ any more than your hypothesized 10 degrees, just sayin the amount of heat transfer definately is not minimal at a distance of 1"

[Drummerboy]

no wrong way taken. the pipes would never be equal temps. there would have to be crazy amounts of heat in order to even warm up the charge pipe. i would be more worried about other things under the car, maybe inside the car melting and burning. dont forget about the turbulence from the air under the car. but usually the exhaust and charge pipe are run on opposite sides of the driveshaft tunnel. aluminum dissipates heat very well. so the transfer of heat even an inch away is minimal. but now if they were touching that would a different story. but even then the charge pipe being aluminum will probably not even notice the small spots of heat. i bet the intake air temps are maybe a few degrees above ambient a max of probably 10 at higher boost pressures.

This sounds like it could be right. So for now i'll take your word for it, I've never personally dealt with a remote mount, so I'm not 100% sure.

It's refreshing to hear a car guy that is actually intelligent enough to understand things like heat transfer, friction, inertia, turbulence, and basic physics.

+reps to you, my dirty friend.

[The Green Monster]

sexy!!!

[2turbo4u]

I rock it everyday yo!

[GSRteg®]

Looks cool that's about it

[DriVaH]

most ppl i know are 2 low for something like that ... looks good though

[HypnoToad]

i like it minus the blue lexus logo,kinda cheap looking.

[On_Her_Face]

I love the car! Now on to the debate. I think rear mount is better as dirtymec has stated for heat reasons. The turbo is definitely cooler no questions. The piping is cooler than it would be in the engine bay. I have never seen where the I/C pipe and exhaust are close enough for it to matter (please post pics). Also this has not been mentioned but the weight factor. You do not have extra weight up in the front of the car. As for more lag, who cares if you have enough TQ!

[mirz833]

thats so sick

[bcmurphy87]

i just goota say sploooog

[carbongs]

nice ride, yeah not too sure how i feel about the setup but i'd rock it in a heart beat