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Brando
 
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Second guessing purchase.

I'm starting to feel like an idiot. I just got a full bay Intercooler from a 964 turbo. My engine is a 77 3.0 turbo. I use a 915 so I'm limited to lower boost, maybe .8 bar to avoid shredding the gearbox? I don't know. But I already have a snow meth kit. I live in Vegas so maybe it might be insurance. Give me some opinions on this please. If I keep this cooler, I'd have to custom make/modify a spoiler for it and make it fit the early throttle body, I already use the 964 elbow with diverter valve from this so that's done already. I won't use a turbo tail. It is a nice cooler but is it overkill?
Thanks.
Old 03-28-2012, 07:25 PM
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Have you installed the snow kit yet? Sounds like you need to figure out your ultimate goals.

If all you're looking for is a little piece of mind in the heat, install the meth, check your afrs and op temps. If all checks out, save the intercooler for more lofty hp goals or resell for what you bought it for.
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Old 03-28-2012, 11:13 PM
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I'll settle it fer ya'.

The IC should be the primary, meth, the secondary.

Pretty hard to overkill on an IC or IC and meth together as it just makes more power......

My point is, is the although the meth can make some pretty low temps without the IC (I think), it can fail or run out. The IC will ALWAYS be there for you.
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Old 03-29-2012, 08:09 AM
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Brando
 
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Meth still isn't installed yet. I really don't need both but I love the idea of more power less boost. but seriously, this combo is for higher boost settings. I feel it would really only be "cool" to have it installed. I love the simple look of my engine compartment without it. Super clean. Plus I'd need to do lots of fiberglass work to fit it to a smaller spoiler. I guess I'm leaning towards no Intercooler.
Old 03-29-2012, 09:33 AM
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IMHO (shared by majority FWIW) no IC is a big mistake on boosted engine if reliability and performance trump your esthetic objective(s). Function over form is 911 bloodline.
Old 03-29-2012, 10:01 AM
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Brandon,
As others have stated, it all depends upon your power goals. As you know, I run a water/methanol injection kit here in Vegas and can say, unequivocally, that it works. Having said that, it is seconday to my 965 intercooler.

When performing my research on "chemical intercooling" it became apparent that the one thing I didn't want was sole reliance on such a system. Although most of the better kits have optional failsafes in the event of a nozzle blockage or flow issue, I read many stories of melted pistons due to failure at high boost. On my car, boost is limited to 1.0 maybe 1.1 bar with the water/methanol injected beginning at around .4 bar.

While you "could" boost to 1 bar on water/meth alone, I would not feel comfortable without an intercooler for the reasons stated above...
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Last edited by rsrfan; 03-29-2012 at 10:15 AM.. Reason: sp
Old 03-29-2012, 10:15 AM
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Brando
 
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O brother I'm going back and fourth. I do know it's a great intercooler and always wanted one of these great coolers.
I'd like to turn up the wick once in a while on the highway and see how higher boost feels, it would be nice to feel ok doing it, at least for the engine.
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Turbo powa!
1977 911s 74 iroc look turbo 1977 930 engine sc cams DFL, Combustion chamber coatings 915.61 trans garret gt30r .82 a/r obx headers andial intercooler WMI system MSD6al two carrera coolers 1bar spring Magnaflow muffler.
Old 03-29-2012, 10:44 AM
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Intercooler first!!! Meth second.

Meth systems with their sensors, electronics, pumps, water lines, injectors CAN fail. There is virtually no failure in an intercooler.

Also, use the meth to cool the intercooler to prevent heat soak (smaller nozzle set up to spray more often). In my SC993, when I spray the meth, the intercooler immediately gets cold.
Old 03-29-2012, 10:51 AM
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See last month's issue of Excellence for the long-term owner 930 story. In the sidebar they noted his chem modified motor blew. FWIW.
Old 03-29-2012, 01:38 PM
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Brando
 
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How?
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Turbo powa!
1977 911s 74 iroc look turbo 1977 930 engine sc cams DFL, Combustion chamber coatings 915.61 trans garret gt30r .82 a/r obx headers andial intercooler WMI system MSD6al two carrera coolers 1bar spring Magnaflow muffler.
Old 03-29-2012, 01:43 PM
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They didn't go into detail, just that it blew.
Old 03-29-2012, 01:46 PM
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To clarify, I too believe there is no substitute for an intercooler IF needed. But the 75-77 models had no intercoolers, and if set up to run correctly with the limited boost the op is talking about (.8 bar), the intercooler is a lot of fab and expense to run what the stock setup is more than capable of handling. Hence the comment for the use of meth only to deal with summer heat. Now if you decide you want 1 bar plus, or you're goin to flog that thing around the track regularly then there is no question you want to spend the time and $$$ on the intercooler install.

It's just as easy to blow a full bay intercooled engine as it is a non. As suggested earlier, identify your goals and plan your driving, engine build, and $$$ in line.

I'm no expert, but so far I've put 20k spirited miles on a non intercooled tired 3.0 with 1 bar boost in so cal summers. I will install meth some day, but it can be done with the proper maintenance and treatment of your car.
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Old 03-29-2012, 06:08 PM
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Brando
 
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1bar Intercooled!!!?
Tht sounds nuts.
Old 03-29-2012, 06:18 PM
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Brando
 
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Sorry, non Intercooled?
Old 03-29-2012, 06:19 PM
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Brando
 
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Swapped for Garrettson
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Turbo powa!
1977 911s 74 iroc look turbo 1977 930 engine sc cams DFL, Combustion chamber coatings 915.61 trans garret gt30r .82 a/r obx headers andial intercooler WMI system MSD6al two carrera coolers 1bar spring Magnaflow muffler.
Old 04-04-2012, 11:36 AM
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Old 04-04-2012, 11:36 AM
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