Jimbo Posted April 7, 2003 Share Posted April 7, 2003 I am looking at building a hybrid IC for my car on the cheap if possible. Looking at the dimensions of the stock mk4 IC it may prove a better alternative than my current and extremley crap IC on my MR2. I expect i will need to weld on new end tanks so it can be loacted properly ... but before i go to all the trouble how well do you rate the stock sidemount IC on the mk4. Does it heat soak quickly or does it cope quite well and provide decent cooling. Is it a restrictive element of the Supra? I would be interested in any effecinecy or pressure drop figures if anyone has them. Thanks for your time Regards James Quote Link to comment Share on other sites More sharing options...
tDR Posted April 7, 2003 Share Posted April 7, 2003 Chris Wilson on this BBS sells an uprated Supra SMIC. May be worth a go. The standard unit is regarded as none too good. Brian. Quote Link to comment Share on other sites More sharing options...
Jimbo Posted April 7, 2003 Author Share Posted April 7, 2003 No good on the Supra or no good full stop. I would be fitting it to my MR2 Turbo if its suitable. A few owners in the states have played around with the unit and have said it works well. Frankly the stock IC is so crap anything would be an improvement. Is it prone to heaksoak, suffer poor flow? Cheers James Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted April 7, 2003 Share Posted April 7, 2003 Its obviously good enough for a Stock supra otherwise Toyota wouldnt have put it on there. It'll prolly be ok for mild modding too. Just depends on how much you wanna rag your car I suppose. Quote Link to comment Share on other sites More sharing options...
Terminator Posted April 7, 2003 Share Posted April 7, 2003 Most stock IC's are a few years old now. When the fins corrode the efficiency goes way down. A stock IC in good condition is fine on a stock MKIV and probable OK on mild mods too. Quote Link to comment Share on other sites More sharing options...
Jimbo Posted April 7, 2003 Author Share Posted April 7, 2003 Well it would only be a cheap alternative to buying some outrageously price IC kit for my car. Currently its making 300bhp 278lbs/ft at 1.2 bar but will be going well past that later this year. What BHP levels do most owners swap the stock IC out ? Cheers James Quote Link to comment Share on other sites More sharing options...
Adam W Posted April 7, 2003 Share Posted April 7, 2003 350-400bhp. Quote Link to comment Share on other sites More sharing options...
Jimbo Posted April 7, 2003 Author Share Posted April 7, 2003 Adam, So can i assume that this IC should be ok on my car until i reach those sort of power levels. FYI it would be combined with water injection as well. Cheers James Quote Link to comment Share on other sites More sharing options...
Adam W Posted April 7, 2003 Share Posted April 7, 2003 Yep. I run a Skyline R33 GTR IC in my Mk3T which is good for similar power levels, might also be worth looking into. Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 7, 2003 Share Posted April 7, 2003 Originally posted by Jimbo Adam, So can i assume that this IC should be ok on my car until i reach those sort of power levels. FYI it would be combined with water injection as well. Cheers James A good condition stock MKIV TT I/C is a very good unit, but NOT just because the I/C itself is well made. It is good because it is properly ducted from a high pressure area to a low pressure area, with ducting that seals effectively. Just hanging it in the arse end of an MR2 will NOT do much good. The problem with the MR2 (and for various reasons I have gone into this in depth) is that of most mid engined cars, one of ducting air flow i and out of the I/C without hacking the body work about or creating a load of aerodynamic drag. IMO you are far better using an air to water I/C arrangement, I supplied parts and advised someone on the MR2 web site about this and it worked brilliantly. I can put you in touch with him if you want? Quote Link to comment Share on other sites More sharing options...
Nathan Posted April 8, 2003 Share Posted April 8, 2003 Originally posted by Chris Wilson is that of most mid engined cars, one of ducting air flow i and out of the I/C without hacking the body work about or creating a load of aerodynamic drag. IMO you are far better using an air to water I/C arrangement[/b] Agreed. The MR2 Mk1 turbo conversion we did used a pair of custom-built independant chargecooler rads in the front bumper fog-light apertures. The water was pumped front to back (losing even more heat) and the exchanger was mounted in the rear. The owner wanted the car to look very stealth. It was. Cheers, Nathan TDI PLC Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 8, 2003 Share Posted April 8, 2003 Originally posted by Nathan Agreed. The MR2 Mk1 turbo conversion we did used a pair of custom-built independant chargecooler rads in the front bumper fog-light apertures. The water was pumped front to back (losing even more heat) and the exchanger was mounted in the rear. The owner wanted the car to look very stealth. It was. Cheers, Nathan TDI PLC Yep, similar here, although he didn't want A/C so the chargecooler heat exchanger was a half height rad in front of the stock water rad, the A/C condenser having been binned. Quote Link to comment Share on other sites More sharing options...
Jimbo Posted April 8, 2003 Author Share Posted April 8, 2003 Chris, I fully understand what you saying about the placment on the MR2. The use of the Supra IC wasnt going to be a final solution, mearly a cheap stop gap until i could afford to get a MR2 specific intercooler or go for WA. I was simply going to get new end tanks fabricated for the Supra IC so it could fit in the stock location. Is this location ok for placment? At the moment i am looking elsewhere for my power gains, and the cooling will be addressed later. So Chris, how large does the front radiator for the WA system need to be and what are my options for placment. To be fair fitting WA dosnt look like much work. I was considering a PWR charge cooler (bullet shaped) and placing it in the stock IC location. Do you have any online guids to doing WA or even a list of itmes that are needed. Cheers James Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 8, 2003 Share Posted April 8, 2003 Originally posted by Jimbo Chris, I fully understand what you saying about the placment on the MR2. The use of the Supra IC wasnt going to be a final solution, mearly a cheap stop gap until i could afford to get a MR2 specific intercooler or go for WA. I was simply going to get new end tanks fabricated for the Supra IC so it could fit in the stock location. Is this location ok for placment? At the moment i am looking elsewhere for my power gains, and the cooling will be addressed later. So Chris, how large does the front radiator for the WA system need to be and what are my options for placment. To be fair fitting WA dosnt look like much work. I was considering a PWR charge cooler (bullet shaped) and placing it in the stock IC location. Do you have any online guids to doing WA or even a list of itmes that are needed. Cheers James The stock MKIV IC has crimped plastic end tanks, the core does not lend itself to having welded tanks fitted. I used a small single seater water rad in the nose, and he used the easily sourced GT4 air to water charge cooler atop the engine. Fair bit of fabrication but relatively straightforward. I have no guides, i just lent a hand as he was / is a good customer. Quote Link to comment Share on other sites More sharing options...
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