Intercooled vs straight pipe???
11-09-2012, 08:04 PM
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Intercooled vs straight pipe??? Guys who have experience with this please answer....
Im running a f1a through the twin 4.5coolers. after about 3 runs i see the intake temps reachin 160+. That seem a bit rediculous to me. What about just gettin rid of the intercoolers save the weight on the front of the car and run a meth kit. What temp difference should i see from intercooled to non intercooled. And from no meth to having meth. I need a direction on this as im sure its been tried and i dont want to have to doo all the r and d myself. im seein about 15psi on a 417@6600. cam is 248/264 .650 115+3. 10:0 to 1 compression. Any good input would be apreciated.
Im running a f1a through the twin 4.5coolers. after about 3 runs i see the intake temps reachin 160+. That seem a bit rediculous to me. What about just gettin rid of the intercoolers save the weight on the front of the car and run a meth kit. What temp difference should i see from intercooled to non intercooled. And from no meth to having meth. I need a direction on this as im sure its been tried and i dont want to have to doo all the r and d myself. im seein about 15psi on a 417@6600. cam is 248/264 .650 115+3. 10:0 to 1 compression. Any good input would be apreciated.
Last edited by 1bad lad; 11-10-2012 at 12:06 AM.
11-09-2012, 08:18 PM
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just add a meth kit , you are sir are at the very top of where they say its time to go to a front mount . 15psi is where they say you will make a bif difference going fmic.
11-10-2012, 12:17 AM
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Any testing showing temp differences??!! with both setups??!! Its a 6.0 block 4.125 crank grp rods diamond pistons. I drove this at most 60miles at a time. I need some real data to make a decision...obviously running an intercooler is ganna have cooler temps but what are th differences...i need data to make a decision!! Anyone??!!
Last edited by 1bad lad; 11-10-2012 at 12:22 AM.
11-10-2012, 09:14 AM
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I'm in for some data as well. I plan on running e85 with a meth injection and no ic. I would like to know why most people seem to be so concerned with pulling the intercooler off if it is not getting the job done. A meth injection will cool the air charge with no loss in boost pressure from an IC. I would think more people would be doing this.
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11-10-2012, 11:35 AM
#8
There's is an older s10 on here that's turbo'd with no intercooler, just a straight pipe and a 125 shot into the turbine. I'm pretty sure he said they were getting -4 iat's
But that was a track only truck. Idk how it would work on a street machine. I would assume as long as you're not always in the boos every time you touch the gas pedal it might work?
They were also doing a budget/junkyard build so they weren't super concerned if they grenaded their stock 5.3.
But that was a track only truck. Idk how it would work on a street machine. I would assume as long as you're not always in the boos every time you touch the gas pedal it might work?
They were also doing a budget/junkyard build so they weren't super concerned if they grenaded their stock 5.3.
11-10-2012, 11:40 PM
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im thinkin just run a straight pipe no intercooler. There no restriction this way. restriction equals backpressure which equals more heat. **** that. but now brings the question where to inject the meth at. before the blower? after the blower? i was thinking use a carb nitrous plate since im using a super vic with an elbow. hmm Cmon i know some of you "tuners" from some shops have to have an idea of what some of the temp differences are. Chime in!!
11-22-2012, 09:54 PM
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Go straight pipe if ya want but there is still a restriction. It's the backside of closed intake valves!
The intercoolers are helping at this point. To avoid heat soak you need more intercooler really. If you replace them with a straight pipe then you will have terrible intake air temps which will cause detonation. That will chew the rod bearings right up and potentially break a ring. The only way to avoid detonation is to pull timing. In turn you lose a butt ton of horsepower (So what's the point!).
The intercoolers are helping at this point. To avoid heat soak you need more intercooler really. If you replace them with a straight pipe then you will have terrible intake air temps which will cause detonation. That will chew the rod bearings right up and potentially break a ring. The only way to avoid detonation is to pull timing. In turn you lose a butt ton of horsepower (So what's the point!).
11-22-2012, 11:02 PM
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Put on the straight pipe and the meth-and your IAT's will STILL be the same.
You'll pick up some boost but your not gonna benefit from it unless you plan on running C16 all the time.
Without the meth and the intercooler-your IAT will go over 250 degrees.
I would ditch the twins and reduce the piping losses buy running a big front mount-and ADD the meth. Doing this you'll pick up some boost and drop your temps down to the 85 degree range.
You'll pick up some boost but your not gonna benefit from it unless you plan on running C16 all the time.
Without the meth and the intercooler-your IAT will go over 250 degrees.
I would ditch the twins and reduce the piping losses buy running a big front mount-and ADD the meth. Doing this you'll pick up some boost and drop your temps down to the 85 degree range.
11-23-2012, 07:23 AM
#14
I have never deleted the intercooler but i did put a iat in the charge pipe within 3" of the outlet of my f1 and was seeing 260-280 temps,
the same runs the iat was saying the engine was only seeing 140(post cooler), that was no meth, turned the meth on and temps went down to low 40s still the same 260-280 outlet temps, (3 nozzles of meth)
you need a front mount and put the meth on it for extra.
the same runs the iat was saying the engine was only seeing 140(post cooler), that was no meth, turned the meth on and temps went down to low 40s still the same 260-280 outlet temps, (3 nozzles of meth)
you need a front mount and put the meth on it for extra.
11-23-2012, 10:42 AM
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I have never deleted the intercooler but i did put a iat in the charge pipe within 3" of the outlet of my f1 and was seeing 260-280 temps,
the same runs the iat was saying the engine was only seeing 140(post cooler), that was no meth, turned the meth on and temps went down to low 40s still the same 260-280 outlet temps, (3 nozzles of meth)
you need a front mount and put the meth on it for extra.
the same runs the iat was saying the engine was only seeing 140(post cooler), that was no meth, turned the meth on and temps went down to low 40s still the same 260-280 outlet temps, (3 nozzles of meth)
you need a front mount and put the meth on it for extra.
11-23-2012, 10:49 AM
#16
Three pulls back to back,this was the last 2 runs 90deg day with a big 4' fan in front of the truck. The blower was maxed out and could only see 16psi on the 496, AT 5800 RPM RAN OUT OF FUEL MADE JUST UNDER 700 ON A MUSTANG
I HAD ONE NOZZLE IN THE BLOWER RIGHT AS IT EXITED SO THE COOLER DIDNT HAVE TO WORK SO HARD, THE OTHER 2 12GPH POST INTERCOOLER
I HAD ONE NOZZLE IN THE BLOWER RIGHT AS IT EXITED SO THE COOLER DIDNT HAVE TO WORK SO HARD, THE OTHER 2 12GPH POST INTERCOOLER
11-23-2012, 10:58 AM
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nice well thanks for the info. I think maybe i need to get it plumbed without the intercoolers and make a few sweeps and see what temps do before i sell the coolers. i just would like to ditch the weight.
11-23-2012, 04:46 PM
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Is this vehicle street driven at all? If so, then running no IC, you're going to be completely dependent on the Meth system to keep the IAT temperatures in control. If they raise up to high you will FUBAR the motor depending how much boost. The more boost, the more cooling needs to happen.
As for the one comment on here (Restrictions = more heat) is 99.99999% false. The heat in the IAT is generated due to generating boost; Compressing air generates heat; basic high-school physics. The restrictions in the system actually REDUCE heat; the intercooler and tubing will conduct heat away from the air, reducing IAT temps.
(note this is a generalization, and without getting into college level thermodynamics talk; this is the easy way to understand it.)
As for the one comment on here (Restrictions = more heat) is 99.99999% false. The heat in the IAT is generated due to generating boost; Compressing air generates heat; basic high-school physics. The restrictions in the system actually REDUCE heat; the intercooler and tubing will conduct heat away from the air, reducing IAT temps.
(note this is a generalization, and without getting into college level thermodynamics talk; this is the easy way to understand it.)
