Anyone Using 2 Stock Intercoolers welded together?
09-30-03, 03:33 AM
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Anyone Using 2 Stock Intercoolers welded together?
Hey all, I was thinking that this would be a pretty good/cheap idea for my turbo project. I would be setting it up like BlueTII as an H-Mount, but with the core runnig the other direction.
09-30-03, 06:01 AM
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Well for thoughts on just welding them together try the here https://www.rx7club.com/forum/search...by=&sortorder= 
- Steiner
- Steiner
10-01-03, 02:21 AM
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There was a guy at SS6 who had a red 'vert he had converted to turbo. He had two stock ICs welded together and set as an FMIC. He said it was a fair amount of work, but it worked just fine.
10-01-03, 03:24 PM
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BamBam7 did that on his turbo-NA car. I don't know if he made any formal measurements of performance though. Seems like it would be reasonably efficient, since the stock TII intercoolers definitly don't suck.
10-01-03, 03:27 PM
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Running intercoolers in series (inline) doubles the pressure drop of the intercoolers, which means that the turbo must work harder (and therefore create more heat) to produce the same amount of boost in the manifold. Running the intercoolers parallel lessens the pressure drop, but requires more plumbing.
I suggest using a larger intercooler instead because that way you don't need to worry about welding and leaks. You can get a used NPR intercooler for $100-300.
I suggest using a larger intercooler instead because that way you don't need to worry about welding and leaks. You can get a used NPR intercooler for $100-300.
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10-01-03, 03:37 PM
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There is a guy on ebay who custom builds intercoolers for $200-$300 and they are a damn sight more efficient than the stock intercooler... I would go that route.
10-02-03, 02:03 PM
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As I stated before, I will be running a H-mount set up like BlueTII.
He is running an NPR intercooler, and I wanted the stock one coz I could set it up with less pressure loss. After reading Maximum Boost, and Turbochargers, I found that if the air could take a shorter trip the the core it would have less pressure drop, but would have the same thermal efficincy as one of the same size.
I did a really crappy job of explaining that, but hopefully everyone understands.
Evil anymore thoughts on this?
He is running an NPR intercooler, and I wanted the stock one coz I could set it up with less pressure loss. After reading Maximum Boost, and Turbochargers, I found that if the air could take a shorter trip the the core it would have less pressure drop, but would have the same thermal efficincy as one of the same size.
I did a really crappy job of explaining that, but hopefully everyone understands.
Evil anymore thoughts on this?
10-02-03, 03:03 PM
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Originally posted by j200pruf
He is running an NPR intercooler, and I wanted the stock one coz I could set it up with less pressure loss. After reading Maximum Boost, and Turbochargers, I found that if the air could take a shorter trip the the core it would have less pressure drop, but would have the same thermal efficincy as one of the same size.
I did a really crappy job of explaining that, but hopefully everyone understands.
Evil anymore thoughts on this?
He is running an NPR intercooler, and I wanted the stock one coz I could set it up with less pressure loss. After reading Maximum Boost, and Turbochargers, I found that if the air could take a shorter trip the the core it would have less pressure drop, but would have the same thermal efficincy as one of the same size.
I did a really crappy job of explaining that, but hopefully everyone understands.
Evil anymore thoughts on this?
10-02-03, 03:38 PM
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Originally posted by Evil Aviator
In my experience, a "perfect" intercooler design would never fit in the car, lol.
In my experience, a "perfect" intercooler design would never fit in the car, lol.
. a friend of mine had 3 stock ic's welded together on his fd (triple stage) and it worked great, by the time the air gets to stage 3 its cold. i dunno about pressure drop though we never checkedmike
10-03-03, 01:35 AM
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Originally posted by razorback
whats npr's website?
whats npr's website?
Also check Ebay, etc.
10-03-03, 03:51 PM
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I'm using two together.
I woudl have preferred to have the parallel, but I mounted it directly in front of the radiator, and the thickness would have been prohbitive.
I don't have any pics of it, but I can tell you that it works AWESOME. On a warm day I can thrash the car, pull over and I can't even touch the turbo outlet pipe it's so hot, but the upper IC pipe is barely over ambient.
Also, the plumbing is really short, since it is mounted in the engine comatrment, right in front of the relcotaed radiator, and the inlet and outel are on the same side (since on the NA, the turbo outlet, and throttle body intake are also on the same side!) I doubt I have more than 3 feet of IC piping... 2 90 degree bends though...
Haivng the big IC core does contribute to about a 1/4 to .5 seconds more turbo lag too.....
I woudl have preferred to have the parallel, but I mounted it directly in front of the radiator, and the thickness would have been prohbitive.
I don't have any pics of it, but I can tell you that it works AWESOME. On a warm day I can thrash the car, pull over and I can't even touch the turbo outlet pipe it's so hot, but the upper IC pipe is barely over ambient.
Also, the plumbing is really short, since it is mounted in the engine comatrment, right in front of the relcotaed radiator, and the inlet and outel are on the same side (since on the NA, the turbo outlet, and throttle body intake are also on the same side!) I doubt I have more than 3 feet of IC piping... 2 90 degree bends though...
Haivng the big IC core does contribute to about a 1/4 to .5 seconds more turbo lag too.....
10-03-03, 05:27 PM
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Originally posted by razorback
whats npr's website?
whats npr's website?
10-04-03, 04:56 AM
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That is because most FD's have V-Mounts, that allow the heat to exit through the trans tunnel. With the intercooler mounted horizontaly it is hard to have air flow through the core, and then exit through the trans tunnel. This would make the air flowing through the intercooler make a 90degree turn, not good for air flow.
Check out blue TII's set-up. HERE
And this is how I want to weld the inter coolers together. Intercooelr Drawing
Check out blue TII's set-up. HERE
And this is how I want to weld the inter coolers together. Intercooelr Drawing
Originally posted by minclo
I've never seen a third gen with a vented hood for their H-Mount, nor a special intake...
I've never seen a third gen with a vented hood for their H-Mount, nor a special intake...
Last edited by j200pruf; 10-04-03 at 05:07 AM.
01-07-04, 04:02 AM
#23
ok, we got them welded
first unit goes to SA (together with S5 13BT) and if everything will work out, we are going to make another for FC
http://rx7cz.net/photos/fmic/
first unit goes to SA (together with S5 13BT) and if everything will work out, we are going to make another for FC
http://rx7cz.net/photos/fmic/
01-07-04, 07:09 AM
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though I dont have any pics I am using a conquest/starion core with its tanks cut off and 2 STOCK T2 intercooler endtanks welded on to it. I used the outlet side od 2 stock ICS so that the inlet and outlet aim straight back towards the engine. I also positioned it up higher than most due and cut a rectangle hole in the upper part of the front bumper for it. This way it doesnt restrict as much airflow to the rad/oil cooler.