CAI off turbo

shavers55 · Sep 4, 2012

searched the thread could not find any answers to my question...so i've noticed that a lot of people run a short ram intake off their turbo. now my question is if i was to Fab a CAI would it be wise and or would i gain any performance from doing that?

ed1380 · Sep 4, 2012

IIRC people have gained 40-60* intake temp difference with a cold air intake. Just be careful with puddles. I sucked up half a gallon last week.

Firegst · Sep 4, 2012

I would think that a CAI would make a very small difference in comparison to the damage it could cause via a puddle etc. The air your turbo is sucking in is being compressed and heated anyways. After being compressed and heated its then routed threw your Inter cooler, my thoughts would be to had water sprayers to the inter cooler etc if your that worried about the temps.

RadDsm · Sep 4, 2012

You could also build something like this http://www.dsmtuners.com/forums/articles-intake-exhaust/194759-diy-cold-air-intake.html and make some ducting to feed more air through the hole for the stock SMIC UICP.

shavers55 · Sep 4, 2012

probably should of just cleared this up in my OP (sorry). i just wanted to do it to say that ive done it..i threw a rod a couple weeks ago, before i get my engine put in im planning on running turbo on my 420A with stock internals. I just seen that alot of people run a short ram intake off their turbo. Just wanted to know if i "could" run a CAI off of it instead

boost97gst · Sep 4, 2012

Well, it would be easy with a 420a, theres no MAF, correct? It is just a matter of plumbing on the opposite side of the engine bay vs the gst.

shavers55 · Sep 4, 2012

boost97gst said:
Well, it would be easy with a 420a, theres no MAF, correct? It is just a matter of plumbing on the opposite side of the engine bay vs the gst.

correct no MAF, and yes just Fabbing from the opposite side. just want to know can i do it..( like if i do it will i hose something up)

boost97gst · Sep 4, 2012

You will have a significant drop in IATs. Its well worth it. Just, like others said, watch how low you put it and how deep the puddles are!
Even with the turbo heating the air, the actual IATs will be lower if your feeding the turbo colder air. I laugh at people with NA engines who tout their k&n "cold air intake" gaining "20 hp". BUT, with turbos, IATs mean the world performance wise. Drive a high HP setup on a 100 degree day, then on a 60 degree day. Massive difference in power.

canada4g63 · Sep 4, 2012

boost97gst said:
You will have a significant drop in IATs. Its well worth it. Just, like others said, watch how low you put it and how deep the puddles are!
Even with the turbo heating the air, the actual IATs will be lower if your feeding the turbo colder air. I laugh at people with NA engines who tout their k&n "cold air intake" gaining "20 hp". BUT, with turbos, IATs mean the world performance wise. Drive a high HP setup on a 100 degree day, then on a 60 degree day. Massive difference in power.

Truth, temp makes all the difference in higher hp cars.

shavers55 · Sep 5, 2012

ok, question answered i will fab up a CAI when i drop my turbo..( or should i take baby steps and drop by engine) in my car... LOL

..thanks guys

x98awddsm · Sep 5, 2012

My CAI (gsx)

91stocker · Sep 5, 2012

I wouldn't run a true cai personally. The extra length and extra bends will hurt performance more then the drop in iat's will help it. There is a thread somewhere on here showing the loss.

A better choice is a sealed air box, pressurized with outside air. Either from the grill, or from where the stock smic was.

The only thing with that link is, it need air from the outside. Thats more of a heat shield then an air box.
http://www.dsmtuners.com/forums/articles-intake-exhaust/194759-diy-cold-air-intake.html

RadDsm said:
You could also build something like this http://www.dsmtuners.com/forums/articles-intake-exhaust/194759-diy-cold-air-intake.html and make some ducting to feed more air through the hole for the stock SMIC UICP.

What he said^^

ed1380 · Sep 5, 2012

91stocker said:
I wouldn't run a true cai personally. The extra length and extra bends will hurt performance more then the drop in iat's will help it. There is a thread somewhere on here showing the loss.

A better choice is a sealed air box, pressurized with outside air. Either from the grill, or from where the stock smic was.

The only thing with that link is, it need air from the outside. Thats more of a heat shield then an air box.
http://www.dsmtuners.com/forums/articles-intake-exhaust/194759-diy-cold-air-intake.html

What he said^^

I'd have to disagree on that. What extra bends are you talking about?

007jimmy · Sep 5, 2012

He is probably talking about the 90* bend that goes through the SMIC hole.

91stocker · Sep 5, 2012

007jimmy said:
He is probably talking about the 90* bend that goes through the SMIC hole.

Bingo^^ I have yet to find the thread i was looking for. It had solid proof of the power loss. Putting a filter on the turbo inlet itself made more power then the "cai" set up did.

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CAI off turbo

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