Miko K Posted December 10, 2006 Report Share Posted December 10, 2006 I posted this in the 3800prodotcom forum, but I thought I'd throw it here too-Well, I took out my engine to do a quick transmission swap(TC went bad and I threw my 35K HD from my Cutlass in too) and decided to go for the mod. For a while I've been thinking about isolating the M90 from the rest of the engine, to avoid heat soak and finally I came up with this.I used 1/4" phenolic and a slight modification to the fuel rail( top hold down screw removed) and here it is. I don't have a lazer thermometer to actually post the temp difference, but now, after driving the car for a while and a few WOT's I can put my hand on top of the blower and it's warm, but not much, compared to being so hot that it used to burn my hand. When driving on the highway it cools down to near body temperature :eek:While I was there I plugged the TB coolant too and bypassed the PCV and EGR systems. So it's a cheap and easy mod that fits under the factory fuel rail and for me it's the last step before IC. I used 3M windshield urethane instead of gaskets, which really cut down the cost of the mod, I have more than 2K miles now on the setup and no problems whatsoever. My next project- M90 from a thunderbird in a blowthrough setup with a FMIC Edit- the little spacer on the bolt under the nose drive is used too, it must have fallen of on this pic. Quote Link to comment Share on other sites More sharing options...
88Regal Limited Posted December 10, 2006 Report Share Posted December 10, 2006 not a bad idia. any real power diff? Quote Link to comment Share on other sites More sharing options...
terryk2003 Posted December 10, 2006 Report Share Posted December 10, 2006 intersting idea...but, i think i'll just use an intercooler to get my S/C away from the intake! Quote Link to comment Share on other sites More sharing options...
Miko K Posted December 10, 2006 Author Report Share Posted December 10, 2006 Real power gains- it took care of 5* KR. Of course an IC is the way to go, but it doesn't cost $20 and my GTP is my DD so it will probably never see an IC unless I do the FMIC. Quote Link to comment Share on other sites More sharing options...
no1kicker Posted December 10, 2006 Report Share Posted December 10, 2006 X2 not a bad idea. Someone does make an alky spacer that might do the same thing, although yours looks like it gets rid of heat nicely. I also see you have the 2 coolant holes blocked off, some guys have done that and the SC gets hotter. Quote Link to comment Share on other sites More sharing options...
5speedz34 Posted December 11, 2006 Report Share Posted December 11, 2006 So you did this after you pulled everything to replace a tranny?! You make it sound so simple, lol. Do you have any more pics? I mean is the only thing doing the spacing the gaskets? Quote Link to comment Share on other sites More sharing options...
Miko K Posted December 11, 2006 Author Report Share Posted December 11, 2006 Yep, it was easy- I had the engine out allready and I cut and installed these pieces of phenolic in about half hour. Then I took out the EGR valve and that was it. Quote Link to comment Share on other sites More sharing options...
no1kicker Posted December 13, 2006 Report Share Posted December 13, 2006 What did you use to cut the phenolic and where did you get the stuff? This sounds like a good cheap mod. Quote Link to comment Share on other sites More sharing options...
Miko K Posted December 13, 2006 Author Report Share Posted December 13, 2006 3/8" drill bit to start the inside cuts and a jig-saw, piperplastics.com, this is the .250" stuff. Any bigger and it won't fit under the stock fuel rail, now it almost touches the top of the SC. Also- you mentioned that somebody did the TB coolant plug mod and the SC got hotter- this here is different, because the blower now is much colder than the engine coolant. Probably less than 120*F at 165*F engine coolant temp. Makes sense that it will get hotter when the blower is glued to the steaming hot engine that the coolant is trying to cool down Quote Link to comment Share on other sites More sharing options...
digitaloutsider Posted December 13, 2006 Report Share Posted December 13, 2006 This sounds like a good idea. I might do it when I pull my blower to paint it. How'd you block off the coolant passages? Just put the plastic stuff over them? Quote Link to comment Share on other sites More sharing options...
dbtk2 Posted December 13, 2006 Report Share Posted December 13, 2006 Sounds like a decent idea. Some vendors have made these in the past but I'm not sure why they quit making them. I liked the difference in heat my dads GTP saw with a phenolic intercooler core. Even with my aluminum intercooler core on my setup there still is not anywhere near as much heat transfer. Quote Link to comment Share on other sites More sharing options...
Miko K Posted December 14, 2006 Author Report Share Posted December 14, 2006 Yep, the coolant holes are just blocked off with the phenolic and urethane, just make sure you don't start the engine at least 24 hours after you put it together, to let it cure. The vendors quit making anything like this, because they want to narrow down the market to intercoolers, there is way more profit in them. Yes, the phenolic intercooler core is nice, keeps the blower a lot colder. I use this setup with my MP112- low contact area, phenolic spacer and 40*F coolant year-round, thanks to the AC chiller I have instead of a front mount heat exchanger. Quote Link to comment Share on other sites More sharing options...
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