Lightning Rodder banner
1 - 20 of 20 Posts

·
Premium Member
Joined
·
4,924 Posts
Discussion Starter · #1 ·
For a 4v build with water/meth injection that will see alot of time in the mountains, some half-mile races, and maybe some road course duty.... Without considering packing with ice... Which is better suited for more consistent and stable temps?

It looks pretty split here on who goes with what type, but I've not seen much in terms of justification regarding efficiency and discharge air temps.

What kind did you go with and what is your experience or reasoning for doing so?

I'm leaning towards A/A for simplicities sake and weight. Thanks for your input!

--Matt
 

·
Registered
Joined
·
1,639 Posts
If you are planning on making under 1200 hp or DD, I'd go with a giant AA IC. Anything over I'd go AW IC. You will have limited street driving with the AW since the water temp will keep increasing as you drive under boost.
 

·
El duderino
Joined
·
13,077 Posts
i went a/w because my main goal is a drag truck. you can cool charge temps below ambient with enough ice. the primary goal for me was remove the most heat as possible from the charge air.

the downfall of most a/w systems on a longer than 12 second race on a warmer day, or hotlapping, is that they get heat soaked because they cannot shed the heat at a higher rate than they pick up heat from the charge air.

on colder days where there is a larger temperature differential, the a/w works fine.

But then there is the added weight.

for something that is going to run hard for extended periods of time, i would go a/a. just make it a biiiig one! heat soak can still be an issue though with a/a.
 

·
Boostaholic
Joined
·
4,729 Posts
A2W is too much work for me, isnt a clean setup, isnt street friendly

with said A2A will get the job done, on baggedsvt truck his IAT2 temps never have gone over 120* and that is with IAT1 temps being 250*

treadstone intercooler

unless the turbos are undersized you wont fight IATs like a blower setup does

worst case you can buy a A2A like cocaine has that will handle 1500 hp
 

·
Head of R&D at A1 Transmission
Joined
·
5,624 Posts
I'd do A2W no matter what. If you're going to have extended periods of aggressive driving you'll need a heat exchanger (which you already have) to keep the system in check. Remotely mounting the intercooler keeps engine heat from killing the temps. Half a bag of ice per run yields a peak IAT2 of 90* at the strip. YMMV
 

·
I paid my buck-o-five
Joined
·
75,651 Posts
A/A is a fashion statement



just kidding








I've always liked the simplicity of the A/A, and if I need to, I can spray a little giggle gas or water/meth

plenty of fast vehicles not needing to ice down between passes





did I mention it looks bad ass?
 

Attachments

·
Premium Member
Joined
·
4,924 Posts
Discussion Starter · #9 ·
Thank you for the replies! I'm pretty sure now that I'm going to stay A/W now. I'm confident now that if I use a GT500 lower and I/C along with a huge A/W heat exchanger like VMP made for the GT500 with dual 10" fans, I'm sure there will be no heat loading issues like I see with the blower now... Plus the lower cost of not having to fan up the I/C and piping.
 

·
Likes the corn brew
Joined
·
5,338 Posts
Thank you for the replies! I'm pretty sure now that I'm going to stay A/W now. I'm confident now that if I use a GT500 lower and I/C along with a huge A/W heat exchanger like VMP made for the GT500 with dual 10" fans, I'm sure there will be no heat loading issues like I see with the blower now... Plus the lower cost of not having to fan up the I/C and piping.
A/W systems meant for blowers end up being extremely efficient for turbos as they are overbuilt basically, it'll work great
 

·
Registered
Joined
·
19 Posts
How efficient is the stock a/w? I really like the iat I am seeing you guys state from the killer chiller, but how long will it stay that cool? A/a is nice but there really isn't room with my winch there :smt021 If I'm thread jacking I apologize. Don't want to get yelled at for starting a new thread. [smilie=ow
 

·
El duderino
Joined
·
13,077 Posts
i think casey went 8's with a stock ic and twins on trickflow heads.
 

·
Premium Member
Joined
·
4,924 Posts
Discussion Starter · #13 ·
I found out that without GT500 heads, neither the ports nor hardware line up... so since I'm not going to spend over $2500 on heads I will be doing a remote A/W setup.

Since I'm a cheap bastard, www.frozenboost.com has some chinese A/W intercoolers for cheap that I may look into. I've sold a fair amount of blower related components, so I'm going to start buying DOHC motor stuff and big items like intake manifold and terbow. Crazy how much the blower stuff clutters up the engine bay.

How efficient is the stock a/w? I really like the iat I am seeing you guys state from the killer chiller, but how long will it stay that cool? A/a is nice but there really isn't room with my winch there :smt021 If I'm thread jacking I apologize. Don't want to get yelled at for starting a new thread. [smilie=ow[/quote]

I consider the killer chiller a bandaid for an inefficient I/C system. Killer chiller does a pretty good job pulling heat out of the I/C fluid, so if you keep in all the time you'll see great air temps at the expense of underhood temps increasing due to A/C compressor running, extracted heat from the condenser, and engine running slightly hotter. A 2nd order effect of that is the hot air under the hood that the motor ingests is less dense but that is predicated on that your intake filter resides in the engine compartment.

How long will the fluid stay cool, that depends on many factors from your driving habits, blower type, boost level, ambient conditions, fluid capacity... list goes on.
 

·
El duderino
Joined
·
13,077 Posts

·
Premium Member
Joined
·
4,924 Posts
Discussion Starter · #16 ·

·
Registered
Joined
·
2,232 Posts
I put one on my buddies fox body when I built the turbo kit. They aren't bad pieces at all. It has worked really well too.
 

·
Premium Member
Joined
·
4,924 Posts
Discussion Starter · #18 ·
I put one on my buddies fox body when I built the turbo kit. They aren't bad pieces at all. It has worked really well too.
Exactly what I was hoping to hear! :smt023
 

·
Registered
Joined
·
966 Posts
I run two of those with the stock IC in the manifold. Stays cool and consistant in traffic, driving, racing... good stuff
 
1 - 20 of 20 Posts
Top