I know ya'll may say that its a bit small, but its the perfect size for me not to remove or modify the bumper support, (keep my fog's), and still be acceptable for my boost (10psi), I also still have the meth/water injection.

its 28X5.5X2.5, the inlet/outlet are 2".

Results: it completely changed my tune, part throttle and idle, i had to change my entire program. After my changes, it started to feel more like before, i do get more turbo lag though unfortunatly. 1st gear used to go to about 5-6psi, now it goes to about 4 or so, then as soon as it goes into 2nd gear it jumps to my set boost. Once it gets into my set boost, the thing MOVES!!!! at 10psi with the meth/water injection, it pulls pretty damn hard.

Temperatures used to be at 130's F.
after the IC, the highest i saw was 111F when i floored it, at cruising speeds or between stop signs it was at 105's, even at idle, previously it was 125+. so it had made a significant difference.

I have a problem though, after I let off the engine bogs about to turn off. When it bogs the a/f goes lean to 16's/17's, once i tap the gas it goes back to normal, can someone explain this to me.

 

nice.. so performance wise, does it feel about the same? I know you said in 2nd it pulls but does it pull as hard as before or stronger? Just trying to figure out if there were other benefits then just lower IATs

 

not really sure to be honest. i floored it from 30mph, as it went to 10psi, it started pulling very very hard, i think more than before. But boost comes in too slow, feels like something's wrong, possibly a leak or something. i raced a mustang GT from a stop, he took me by alot, then i started cathing him, but after a while. i have alot of lag, i hope its a leak and not the IC, does intercooler cause lag? or only pressure drop?

 

aThe more volume the intercooler has, the more turbo lag, and of course the psi drop. it should be about a ~1-2psi drop


also, the only measure of an intercooler that effects turbo lag is its physical internal volume, so the smaller the intercooler the less lag, the bigger the IC the more lag. Turbo lag is independent of the inlet and outlet size too, that effects the pressure drop

 

usually you wont have more lag but you do lose 1-2psi. Im seeing 7psi even tho i have a 9psi wastegate spring spo you deff lose a lil.I dont have any extra lag as im seeing boost at 2200 and full by 3200.

 

well you dont see lag now because you started that kit with that FMIC, but if you were to run without it, I'm willing to bet it would spool quicker

 

i heard that a intercooler isn't really necessary for the RMT due to the turbo mounted in the back... all the heat is dissipated through the exhaust and intake piping already.. something enlighten me please. THanks

 

ghostmax, I got the intercooler with the same size inlet/outlet as my piping, that was the right thing to do right?, i am starting to think i actually have a boost leak, boost is coming is similar to when i had a leaking coupler. going to check tomorrow morning all my piping and see if i find anything loose.

myth. in my opinion, anything that applies to a front mount turbo, applies the same to a rear mount turbo.

 

yep, same size is the right thing to do. I think a bigger(2.25" pipe to 2.50" inlet/outlet will cause more of pressure drop

 

IC could only cause a slight pressure drop (since you have a small one) check your oil pressure cause that can cause alot of lag (just to rule it out). Make sure your collars are tight on the IC and that the collars sit far enough in on the silicone sleeves (thats what caused my boost leak).

 

This is just an OBD2 function to [almost] shut off the injectors while the engine revs down and your foot is off the gas. Seeing 18+:1 a/f in this engine-breakin scenario is not rare at all, in fact thats whats supposed to happen.

Remember in my car with the cutout open, Im engine breaking and w/ its loud hardly any backfire (super lean), the moment I start to go into the gas, backfire like woah (cus even with just .5% of throttle, ECU starts to spray fuel back into the motor)

 

Yea i know that part, but the bog is after the injectors come back, when injectors come back on, its still lean. Till i accelerate again.

 

Where is your waste gate vac line connected? If its short (connected near the outlet of the compressor before the IC) then you will get a loss of boost at the engine b/c opf the long pipes. If you connect it close to the TB then the boost should stay close to the w/g spring rating. Long pipes are a *****. Are you running a boost contoller?

Id say you have a leak some place since you have a couple of new problems.

 

I used to have the WG line connected back there, but i then moved it to the intake manifold and pressure stays at spring pressure. I did more driving, and I think its fine, i just have to tune my WG with my controller, since there is some pressure drop now, i gotta add more values to put the boost back up to where i want it. since it did add some pressure drop, 1st gear is more noticeable having very low boost, once it gets into 2nd gear, boost jumps up to spring pressure.

 

YES!!!

There was a HUGE leak after the maf, somehow there was no leak during vacum but while in boost, the coupler was not on the pipe, anyways, i fixed it, and

The car pulls HARD!!, Pressure drop is almost nothing, i added a couple values to the boost controller just in case, boost showed at about 10-10.5 in 2nd gear like before the IC. I had to tune WOT a/f a bit, i have it tuned for as close to 10.5 possible, it was a lil leaner in low 11.

NOW i am officially satisfied with the intercooler lol.
After a run, i parked the car let it idle for a while, temperatures were going up to 120F, then as soon as i started driving around, it went right down to 105F after a couple of blocks. usually i would have 130F while standing still, and maintain almost the same 130 while driving.

 

Thanks for the detailed write-up streetz. It's a welcomed change around here. Most people simply post pictures of what they installed and leave it at that. You discussed the most important things: PSI loss and intake temp. reduction. The third key piece of info. would be before/after HP numbers but I know that requires more time/work/money. With my water to air aftercooler, I also saw a 1-2PSI drop. However, at full boost, I get a temperature delta of 40^F, not the 20^ that you saw. Although, my temps are higher in general: 170^ upstream of the AC and 130^ downstream (during a full boost run). During regular cruising I'm a consistent 20^ above ambient. Again, thanks for the numbers.

 

No problem, I might be able to dyno next Thrusday, Last dyno was 299whp, 291tq with non working 00vi, so it wont be that great of a baseline.

I did a run with and without the meth/water injection, and its pretty noticeable, felt great with the injection.

 

Told you so

J/k. Glad it's running good!

 

Well, was making more observation. There was a bit of drizzling out tonight, went for a drive, intake temp was the entire time at 86F. Outside temp is about 72F (rain). I really like this intercooler deal.

 

Make sure you post up numbers as soon as you dyno.

 

Here are some poor quality pictures, im inlove with the look.

 

Look good. I love my fmic.

 

DYNO RESULTS POSTED YA'LL!
http://forums.maxima.org/showthread.php?t=546336

 

Not bad at all - now if you would move the turbocharger back up front, where it belongs, then 350 WHP is easy, right ??

LOL.....

Not bad.

 

SO thats what my car will look like with projectors and an intercooler . Its a little less sleeperish but you could always paint the intercooler black.

 

Looks good. Any pics of the intercooler piping?

 

JeEvE, yea i have pic's of the piping, but thats classified, lol. wanna make the RMT prospects think of things on their own, cant give everything away u know. If i see someone having trouble figuring it out, then yea perhaps, but for now, meh. lol

Grey, Im willing to put money down that this turbo mounted in the front, on my same car, wont give me more power. putting the turbo in the front, dosnt mean more power, once boost builds up, its same in my opinion no matter the location. having it in the front rather than back will just help spool quicker and be more responsive. but even then iv already proven that my setup is as effective if not better than front mount. Looking for dyno results of my friend, but he had this same turbo on his 4th gen 5sp, and I think I am making more power than he was (in front mount setup)

 

Thats fine, I have a front setup already....I was just curious.