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Old 10-08-2017, 09:37 PM   #2661
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wouldnt the air inside the compresor side of the Turbo be Hotter than the general engine compartment air when you have your foot in it? ive heard rumors fresh pre-CAC turbo air can be 300+ degrees F..
-Christopher
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Old 10-08-2017, 10:16 PM   #2662
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I'd think you're right that the intake air discharged from the turbo would be pretty warm (at least). Warmer than engine bay ambient wouldn't surprise me. Even so, the exhaust is hotter still. It makes sense that heat from the exhaust manifold could radiate and heat the turbo-to-CAC pipe even further if not for the added shielding. The heat from those components is going to go somewhere; reducing the portion of it that goes into the intake air seems like a good move.
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Old 10-09-2017, 11:48 AM   #2663
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FW --- that is the basic idea. Simply to reduce the heat transfer between the turbo & exhaust manifold...and the incoming air and the turbo to CAC supply. Once the manifold heats up, it radiates a huge amount of heat into everything around it. Especially when the vehicle is sitting still or moving slowly in traffic.

The elements are so tightly packed that the radiant turbo & manifold heat is quickly absorbed by the aluminum intake & CAC piping which pre-heats the intake air supply. Not at all what you want. Any heat reduction in that supply is quite beneficial.

Some of the diesel racers and pulling crowd go to great lengths to cool the air supply going into the cylinders and the payback is really quite significant. There are even some CAC pipes that have integral fins to help shed heat before and after the intercooler...they look really cool but they ain't cheap.

Me...I'm just trying to get some small benefit by not making the CAC work any harder than it has to.
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Old 10-09-2017, 01:38 PM   #2664
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I helped on a project years ago where a Guy thought that storing cold coolant and using a water / air CAC would give him an advantage.. we had"A/C" to cool a ballast of coolant.. then the compressor was switched off for any pulling run.. surmising that the extra 35 lbs of A/C equipment compared to the sled was beneficial.. Dyno runs show it really worked.. obviously not practical for a road vehicle.. (ie windmill on the roof syndrome).. but for a racer where it was short term the cold dense air gave an advantage.. till some rule-guy disqualified the truck for some odd reason.. a technicality ofthat cooler.. {no one can be innovative in racing anymore}
-Christopher
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Old 10-09-2017, 02:30 PM   #2665
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{no one can be innovative in racing anymore}

Man is that a fact! The "rule guys" have turned American ingenuity into mush. Nothing but a bunch of mail order, Bolt On Chinese crap on most rods and racers these days.

Back in the Olden Days when I raced formula GP bikes, the rulemakers effectively outlawed 2-stroke racing engines. The winingest machines ever created and routinely tweaked by privateers into world beaters. Why?

Because no one else (aka; the major manufacturers) could come up with anything that could touch them. My handbuilt little 373cc, 210 pound cafe bike produced about 135hp on carbureted street gas at 12-13,000 rpm and consistently blew the doors off of highly modified factory 1000 and 1200cc four strokes. BTW...373cc is 23.76 cubic inches.

So much for thinking outside the box.
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Old 10-09-2017, 03:59 PM   #2666
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thats the thing.. racing used to be won ON AND OFF the track... I suppose some of it had to do with the high $$$ guys always placng in the top 10.. since they could go out and hire professional engineers to dream up the next fastest thing for their car.. but the stuff that came out of our own garages ..late thursday nights freaking turning parts on lathes and grinding that extra 3 ounces out of a set of heads.. racing in less than 24 hours and your engine was still just a bunch of pistons and bearings on a bench next to the radio blasting alan jackson or hank williams.. and a case of beer (or pizza and mtn dew in my garage).. often beat those $$$ guys friday night under the lights! I suppose they got mad and paid the rules guys off..
-Christopher
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Old 10-09-2017, 04:04 PM   #2667
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Quote:
Originally Posted by Tango View Post
{no one can be innovative in racing anymore}

Man is that a fact! The "rule guys" have turned American ingenuity into mush. Nothing but a bunch of mail order, Bolt On Chinese crap on most rods and racers these days.

Back in the Olden Days when I raced formula GP bikes, the rulemakers effectively outlawed 2-stroke racing engines. The winingest machines ever created and routinely tweaked by privateers into world beaters. Why?

Because no one else (aka; the major manufacturers) could come up with anything that could touch them. My handbuilt little 373cc, 210 pound cafe bike produced about 135hp on carbureted street gas at 12-13,000 rpm and consistently blew the doors off of highly modified factory 1000 and 1200cc four strokes. BTW...373cc is 23.76 cubic inches.

So much for thinking outside the box.
Must be something in the blood??

I sure miss my RD's, TZ's and 8v's..,

I have to agree that the rules guys have really hurt the weekend racers.
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Old 10-09-2017, 04:50 PM   #2668
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...and innovation in general.

The whole idea of a company having a "racing division" was to insure there was a place for their most free-thinking engineers to test crazy, new ideas.

Theses days...it's all run by the Marketing & PR Departments.
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Old 10-09-2017, 09:29 PM   #2669
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I think the fault lies squarely on the shoulders of you innovators and think outside the box type guys. The rules guys were fat, dumb and happy until your type showed up. If you'd just have let the "pros" win every now and then the need for more rule guys and more rules wouldn't have been necessary in the first place! The part I hate the most is the fact that your type caused all this to happen and now I don't dare try anything creative for fear the rule guys will further punish me. I've been forced to become a closet creative thinker and outside the box thinker. I suppose I should hate you all but its way too late to go back and it will never be the good old days again anyway so what the heck----

Crafty Jack
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Old 10-09-2017, 10:32 PM   #2670
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Keep your head down Jack...the Rules Guys monitor sites like these for troublemakers.
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