clocking turbo Options

[jgreening]

By clocking the turbo you . . . don't have the intercooler piping looped over the hot exhaust manifold.

-Doc

Are you really saying that running that loop over the manifold impacts intake temperatures when a decently efficient intercooler will take the temperature down to near ambient?

Yes or No?

[Dr_Tweak]

By clocking the turbo you . . . don't have the intercooler piping looped over the hot exhaust manifold.

-Doc

Are you really saying that running that loop over the manifold impacts intake temperatures when a decently efficient intercooler will take the temperature down to near ambient?

Yes or No?

Yes. Big difference? No. But a few degrees cooler BEFORE the intercooler means a few degrees cooler AFTER the intercooler, and cooler air = more power.

Example, a cold air intake is highly recommended to make more power on a turbocharged (or any other) engine. Now, how much colder is the air down near the fender well compared to the engine bay (in a car that's driving, say, 60mph). Not very much! But, the little difference does make more power, and yet, the cooler air from the cold air intake still has to go through the compressor (being heated up) and then cooled again!


So yes, you should do everything in your power to lower the temperature of your intake air at EVERY point in the system, before the turbo, after the turbo, and after the intercooler. This is the idea behind a WELL DESIGNED turbo system. No decent aftermarket turbo system builder would intentionally route the turbo and piping the way you're talking. If they wouldn't, then why should we?

Don't be jealous just because you don't have a pimp clocked turbo

This post has been edited by Dr_Tweak: Jan 20, 2006 - 7:41 PM

[jgreening]

Well, at least you stuck by your statement - I thought you would back down when confronted by my super logic. I guess we just disagree here which is fine. The truth is without an IAT guage and switching the setup in the middle of the test, we will probably never know. Really, I think the issue comes down to the capacity and efficiency of the intercooler. There are A/W intercoolers out there that take the intake temperatures down to ambient. I would imagine that good a/a setups could do almost, if not as good. I have a very hard time understanding how the temperatures could get any cooler than ambient by eliminating the loop - but hey I think its time to stop beating the dead horse.

Oh, and to correct the statement, I have eliminated the loop and clocked my turbo down.

Thanks for the entertaining debate.

- Jay

[Dr_Tweak]

Well, at least you stuck by your statement - I thought you would back down when confronted by my super logic. I guess we just disagree here which is fine. The truth is without an IAT guage and switching the setup in the middle of the test, we will probably never know. Really, I think the issue comes down to the capacity and efficiency of the intercooler. There are A/W intercoolers out there that take the intake temperatures down to ambient. I would imagine that good a/a setups could do almost, if not as good. I have a very hard time understanding how the temperatures could get any cooler than ambient by eliminating the loop - but hey I think its time to stop beating the dead horse.

Oh, and to correct the statement, I have eliminated the loop and clocked my turbo down.

Thanks for the entertaining debate.

- Jay

You serious? Why in the world did you do that.

Oh yeah, and a WTA intercooler is capable of MORE than 100% efficiency, if you add ice!

I agree it's time to end the debate. That said, I'm now very tempted to get an IAT guage and do a test next chance I get.

This post has been edited by Dr_Tweak: Jan 20, 2006 - 8:19 PM

[lagos]

no more debate from me, but i just want to point out 2 things that dont make sense to me

Example, a cold air intake is highly recommended to make more power on a turbocharged (or any other) engine.

you know, i have NEVER seen a cold air intake on any turbo car.... even then ones making huge hp, normally keep the intakes in the bay, but remove a headlight or something to get more air in .

No decent aftermarket turbo system builder would intentionally route the turbo and piping the way you're talking.

who are you talking about, you? lol cause last time i checked no one really makes an intercooler and turbo kit for our cars. the only one i can think of is toyota, when they ran the piping over the manifold in the mr2.


any extra bends you can get rid off, is a good thing... and like i said, i might clock mine....but i dont expect to notice a gain from it.

[Dr_Tweak]

no more debate from me, but i just want to point out 2 things that dont make sense to me

Example, a cold air intake is highly recommended to make more power on a turbocharged (or any other) engine.

you know, i have NEVER seen a cold air intake on any turbo car.... even then ones making huge hp, normally keep the intakes in the bay, but remove a headlight or something to get more air in .

No decent aftermarket turbo system builder would intentionally route the turbo and piping the way you're talking.

who are you talking about, you? lol cause last time i checked no one really makes an intercooler and turbo kit for our cars. the only one i can think of is toyota, when they ran the piping over the manifold in the mr2.


any extra bends you can get rid off, is a good thing... and like i said, i might clock mine....but i dont expect to notice a gain from it.

Well, for your first question, I'm taking that information directly from two books that I've recently read. One written by Jeff Hartman and the other by Corky Bell. So you can argue with those two guys if you want

And I wasn't referring to our cars, I'm just speaking in general. Take a look at a nice Blitz turbo kit or something, and you'll see that the engineers who built it went through a lot of trouble to 1. avoid running the piping near hot areas and 2. use as few bends as possible.

-Doc

[lilsteeg]

clocking it does good, cooler air into intercooler= cooler air out of the intercooler, they dont just cool down any temp air down to a certain temp, they cool down the air a certain amount so a few degrees cooler in means a few degrees cooler out, and if you are gonna say that its not worth it than tell all the kids out there runnin cai's that it doesnt matter, which it doesnt make much of a difference but it does,

[playr158]

cold air + turbo is normally a no no...(Thats why we run intercoolers)
turbo'd cars i like to stick to
volume over temperature......
the more you can suck the better off you are then sucking less and a few degree's cooler...

[jgreening]

Oh, and to correct the statement, I have eliminated the loop and clocked my turbo down.

You serious? Why in the world did you do that.

LMAO. Good one. I did it to reduce my air intake temperatures. HA HA.

This post has been edited by jgreening: Jan 21, 2006 - 4:13 AM

[lilsteeg]

if you want volume over temp, than you need colder air, have you ever played with a paintball gun notice that the compressed air is freakin cold, thats because in colder air the molocules are closer together meaning you can get more air in a given space= more air into motor thats why you run intercoolers to get the coldest and densest air possible.

[jgreening]

colder air the molocules are closer together meaning you can get more air in a given space= more air into motor thats why you run intercoolers to get the coldest and densest air possible.

No one is arguing that point. What we were debating is whether taking measures to minimize the warming of intercooler pipes on the hot side matters since the intercooler will do its job on the air anyway.

[lilsteeg]

cold air + turbo is normally a no no...(Thats why we run intercoolers)
turbo'd cars i like to stick to
volume over temperature......
the more you can suck the better off you are then sucking less and a few degree's cooler...

volume over temp, right there thats what i was arguing

[jgreening]

cold air + turbo is normally a no no...(Thats why we run intercoolers)
turbo'd cars i like to stick to
volume over temperature......
the more you can suck the better off you are then sucking less and a few degree's cooler...

volume over temp, right there thats what i was arguing

I am glad someone understood what he meant...

[DG_Performance]

While you guys are at it....why not add an intercooler sprayer to the mix? Spray the intercooler with water or gas to make it more effective! Then, lets all go and do some dyno pulls for results instead of arguing over each persons theories!
DG

[playr158]

nter-cooler my nitrous express

[jayi12-15psi]

sorry to be an idiot here, but what is clocking a turbo?

[gt_driFFter]

Repositioning the angle of a turbo to decrease the amount of bends in piping, thus giving better performance.

[jayi12-15psi]

oh, very interesting, I had never heard of this before, this thread is very enlightening.

[zipstrips]

gt drifter, is that image ofthe ct26 being clocked?

anyone have real pics of the clocked ct26, and how the (stock) WG was modded to work?

[BBoYRuGGeD]

gt drifter, is that image ofthe ct26 being clocked?

anyone have real pics of the clocked ct26, and how the (stock) WG was modded to work?

i can take pics tomorrow when the sun goes up and when my sister gives me my damn dig camera back...lol anyway i just hope i dont forgot

bboy