PMI - "Poor Man's Intercooler"
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Don't drink and Mag Race
Joined: Mar 2004
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PMI - "Poor Man's Intercooler"
Poor Man’s Intercooler
In another post, Manifold Bypass Mod, I allowed the intake manifold, or upper collector to run cooler by bypassing the flow of hot coolant around it.
This next mod, the “Poor Man’s Intercooler” or PMI, takes the plenum cooling to the next level. Using the OEM washer pump, a spliced-in gang valve and some return tubing, ice water now circulates through the manifold on command !!!
The gains from this mod would be similar to throwing an icebag on your intake, without the mess.
First, complete the Manifold Bypass Mod.
When the heater hoses were removed, two fittings were exposed. I attached some clear tubing and a funnel to them and rinsed the antifreeze out of the manifold. I didn’t want any of that on the windshield !
In another post, Manifold Bypass Mod, I allowed the intake manifold, or upper collector to run cooler by bypassing the flow of hot coolant around it.
This next mod, the “Poor Man’s Intercooler” or PMI, takes the plenum cooling to the next level. Using the OEM washer pump, a spliced-in gang valve and some return tubing, ice water now circulates through the manifold on command !!!
The gains from this mod would be similar to throwing an icebag on your intake, without the mess.
First, complete the Manifold Bypass Mod.
When the heater hoses were removed, two fittings were exposed. I attached some clear tubing and a funnel to them and rinsed the antifreeze out of the manifold. I didn’t want any of that on the windshield !
Last edited by ChicagoX; Oct 7, 2005 at 07:07 PM. Reason: bug ate photos
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Don't drink and Mag Race
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Then I plumbed the end of the return silicone tube into the filler neck of the washer fluid reservoir:
Last edited by ChicagoX; Oct 7, 2005 at 07:15 PM.
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Don't drink and Mag Race
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In everyday operation, it is transparent. The windshield washer operates in exactly the same manner as before. At the track, I switch the valve (accessible from the battery compartment) to RACE mode, and pull the wipers with a 14 mm socket. Alternately, two fuses can be pulled to allow the washer pump to operate without the wipers oscillating.
Ice goes into the washer reservoir, and I pull the washer stalk in the cabin to circulate the cool fluid through the manifold and back into the reservoir.
Total cash outlay for this and the Manifold Bypass Mod was in the neighborhood of $30, not including the tool to bend the pipe. I look forward to seeing how well this works in conjunction with other cooling mods. As I said in the other post, with the price of mods and the scant horsepower most make, I believe in making the most of what I already have.
Wayne.
Ice goes into the washer reservoir, and I pull the washer stalk in the cabin to circulate the cool fluid through the manifold and back into the reservoir.
Total cash outlay for this and the Manifold Bypass Mod was in the neighborhood of $30, not including the tool to bend the pipe. I look forward to seeing how well this works in conjunction with other cooling mods. As I said in the other post, with the price of mods and the scant horsepower most make, I believe in making the most of what I already have.
Wayne.
Last edited by ChicagoX; Oct 7, 2005 at 07:16 PM.
Thread Starter
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Don't drink and Mag Race
Joined: Mar 2004
Posts: 2,065
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With the mindset of cooler = better, I think this will offset some heatsoak and allow you to make maximum power rather than adding any horses per se.
Basically, this is a (tiny) water-to-air intercooler using the stock washer pump.
Basically, this is a (tiny) water-to-air intercooler using the stock washer pump.
