Any point in a stretch stock-location IC on a mostly stock GN?

[Renthorin]

I have the basic mods, hotwired pump, ATR exhaust, 3" DP, cold air kit, alky (not turned on at the moment).

Is there any point in getting a stock location stretched IC for my car?

I have heard that spraying alky will do as much as a new IC.

How much of a gain will I feel from one of those IC's?

 

[Gary Wells]

Alky should do more for you that the stock stretch location IC. Just my opinion from what I have read, though.

 

[Renthorin]

I had read that you don't even 'need' an IC with alky.

All I know is the car is an entirely different beast when it is 35 degrees out compared to 90 degrees.

So if a stretch IC would lower the air 50 more degrees than a stock IC wouldn't that feel the same when it is hot out? And pull even stronger when it is cold? I know it isn't a simple relationship between temps but that is kind of what I envision.

I am not running my alky right now but I thought it gave you more power by cooling the compustion chamber, not so much by making the air more dense. But I guess they kind of go hand in hand.

 

[SHADOWII]

the advantages of the stretch is it's reduced restriction over the stk i/c, plus it's efficiency combined w/the alchy, in the heat of the summer, you can run 18+ boost levels.

 

[Renthorin]

So my other question is for anyone who has swapped their stocker for a stretched one:

That being the only mod you did between drives, did you notice much of a difference?

 

[KEVINS]

Over the years I heard a stretched IC is good for .3 and 3mph but it does vary but I'm sure alchy will be better than this b/c it cools and allows you to run more boost. But as was mentioned the stock IC is pretty restrictive so I think a big neck would be the minimum I would do. I just installed a CASV4 (no times yet) and I can run 17psi on 89oct w/o knock (gain of 2psi) but I can't feel any perf. difference at this low boost level.
I say even with alchy the stretched IC will make a big difference in cooling. The air coming out of the turbo is approx 300* and with a stretched IC the TB inlet temps can be dropped to approx 150*. Now if you spray alchy on top of this this would make the cooling process better than w/o the stretched IC.

I say do alchy first then the IC but I would do both for the best chance of really cooling the inlet temps. I am planning on adding alchy sometime when I have the $$ b/c I want to push this stock turbo and I want the most cooling I can get.

KS

 

[wickedtt]

Over the years I heard a stretched IC is good for .3 and 3mph but it does vary but I'm sure alchy will be better than this b/c it cools and allows you to run more boost. But as was mentioned the stock IC is pretty restrictive so I think a big neck would be the minimum I would do. I just installed a CASV4 (no times yet) and I can run 17psi on 89oct w/o knock (gain of 2psi) but I can't feel any perf. difference at this low boost level.
I say even with alchy the stretched IC will make a big difference in cooling. The air coming out of the turbo is approx 300* and with a stretched IC the TB inlet temps can be dropped to approx 150*. Now if you spray alchy on top of this this would make the cooling process better than w/o the stretched IC.

I say do alchy first then the IC but I would do both for the best chance of really cooling the inlet temps.

KS

How much boost could you run before the stech intercooler was installed and were you using alky at the time?

 

[Gary Wells]

So my other question is for anyone who has swapped their stocker for a stretched one:
That being the only mod you did between drives, did you notice much of a difference?

----------------------------------
I swapped my SLIC for a Thunderfab, and I did not feel that the difference was all that great, but this was measured by "seat of the pants" "butt-o-meter" & not on a track or dyno. Also, will a aftermarket SLIC beat a factory IC by 50°. I think that is a very high estimate, but I have no factual data for saying this. Everybody that goes to alky says that they just can't say enough good about the change, and you don't hear that from peeps that have gone from a IC to an aftermarket SLIC, even the best one. I still say alky will give the biggest increase with everything else staying the same, and I don't even run alky yet. Still babying my car at about 21-22 lbs boost on 100 octane VP fuel. I can only imagine what it will do when I go to alky for more combustion chamber cooling, denser charge, & a couple lbs more of boost. I know that I will get at least a few more HP, theoretically at a few less lbs. of boost.

 

[UNDER-PRESSURE]

I recently swapped in a BGC 23 row stretch intercooler in my car & the improvement was amazing. A little over 3 psi of restrictriction was gained & the car is now at 19 psi on 93 octane with 0 knock. 100% stock engine & turbo, good exhaust & fuel system. Put the intercooler in the car, you will not regret it.

 

[Sweet6]

I went from a stocker to a Dutt neck stocker on my TTA. The car definitely spools faster. You will get 2 benefits from a better IC. Less boost restriction and be able to run a little more boost without detonation. If you ran the same boost on both IC's, I doubt you would see much of any gains. IMO I think Alky is more bang for the buck. But depends on what you want to do. Down the road, both would be ideal to have.

 

[TURBOPOWERED68]

The way I see it
The IC has several jobs
1-reduce back pressure
2-increase volume
3-cool the air coming out of the turbo and going to the engine

The alky has one job
Cool the air that is immediately going into the engine

Because this is what I understand from the two
I will use the two of them

 

[KEVINS]

How much boost could you run before the stetch intercooler was installed and were you using alky at the time?

The most I could run was 15psi (No alchy).

ks

 

[ACLR8R]

I noticed a huge difference; I went from barely spinning my drag radials (my old Nitto’s) in first to annihilating them in second with the addition of the PTE stock location. Spools faster, makes more power, well worth it to me.

 

[Renthorin]

Thanks for the comments guys. Definitely something to think about.

I have had alky for a few years now and it does the job. Just wondering if a larger IC would help even more.