sensevo8

I am currently using Greddy R-spec intercooler, somehow ,i feel like the car is slower compare with using stock intercooler. Some of my friends are telling me that R-spec should be used with big turbo upgrade set up. I am just wondering what is the best front mount intercooler set up with stock turbo?

trinydex

iTrader: (12)

a billion people are gonna jump on here and say stock intercooler is best.

first of all... you should check all your connections on your intercooler install.

the rspec is a fine intercooler nad it is very light weight, the fin density may make things different and what not... but i wouldn't think it to make the car slower... although i've mostly heard the good stuff from people that have more stuff done. it is a good intercooler for the stock turbo if you're pushin' 21psi. it'll do the work well with weight in mind. just check the tune and install before you make any judgements.

350Z_2_Evo8

ARC

just my 2 cents!

Vapor

iTrader: (4)

I agree, and when you look at the insides of one, most will agree.

However, I highly doubt you'd see a huge difference between the rspl and the ARC.

Rez90

iTrader: (17)

i have the perrin IC and i love it...but when running the stock turbo...it's not neccessary to upgrade the intercooler.

trinydex

iTrader: (12)

only size... which will play into filling nad boosting, cooilng capacity? same prolly.

ELF

iTrader: (6)

AMS

trinydex

iTrader: (12)

a lotta people say that... maybe running stock boost it's not necessary... but actually you need less of an intercooler when you hop up to a bigger turbo. cuz it will always blow cooler air. the overworked tiny turbo is what makes hot air.

of course when you're flowing more air you need something that is more free flowing too. the reason why people get bigger intercoolers that are more restrictive is because with a bigger turbo you can get away with it. the turbo will just power through all the intercooler stuff... and you'll get the cooled discharge all teh same. where in a smaller turbo such an upgrade has more noticeable downsides, filling is harder, overcoming the restrictions becomes apparent cuz you gotta work harder... and with something like a stock turbo that's only gonna make yer boost taper and what not.

that is why with the stock turbo you needa be running more than stock boost... holding rock solid before you do intercooler stuff. altho pipes would help a lot and myabe that would put off the downsides.

sensevo8

After I Installed The Rspec, The Boost Has Dropped To 1.0 Bar And I Have To Use Boost Controller To Adjust It. Is It Normal Like This? I Have Checked The Pippings And There Is No Leaks At All..

bdking57

iTrader: (7)

stock intercooler is best any other intercooler = throwing away $800 for pointless bling unless you actually have 400whp to warrant a larger one.

Soon2BEVO

iTrader: (41)

Buschur!

bishiboy

iTrader: (10)

Before I installed my custom 24x12x3 bar/plate, I had my boost set at 20psi (going thru the stock intercooler). (I'm running a stock turbo.)
After I installed my new intercooler, I didn't touch the boost controller, I went for a test run. Boost hit 26psi (not a spike) and blew off my intercooler pipe at the throttlebody. (I also insured all clamps were tight)
This indicated to me that the stock intercooler is restrictive. I had to turn down my boost controller to maintain 20psi. I am also able to run higher boost without knock due to the more effcient cooling.

I just finsihed installing an even bigger core, 24x12x4. I din't notice any improvement. I even think boost ramp-up is a bit slower.
This is just prep work for an upcoming bigger turbo.

Bottomline, stock is good. Aftermarket is better. You will notice a difference.

silverofs

iTrader: (3)

^^^^ what he said

Soon2BEVO

iTrader: (41)

Some aftermarket intercoolers will give much better cooling over the stock intercooler. Tube and Fin is NOT the ideal structure for cooling, bar and plate is. Hence why 99% of the aftermarket IC mfg. use it.
When running larger turbos, the necessity of running an upgraded intercooler is flow. You dont see any 10 second EVOs running the stock IC do you? Understand that and you can see why Dynoflash gained 20-40whp by switching to the BR RACE FMIC.
With the stock turbo, I think depending on the uprade.. the intercooler is worth it. The Buschur, AMS and Nisei all FLOW better than the stock and also doing a better job cooling. Its just a matter of how much its worth it to you. I got the BR FMIC bc I ruined my stock IC by hitting a deer. The choice was simple. Also, the aftermarket ICs, especially buschur just make the stock one look stupid in terms of styling

bdking57

iTrader: (7)

If your in a realy hot climate it might be justifable.. but its summertime here in california monterey bay area and at night on the pacific coast its foggy/misty and 50-60 degrees, super cool air all the time plus its like running water injection with all the fog lol