Eaton SC'd and FMIC engine stalls when coming to a stop

[green-lantern]

Originally Posted by casperlynn

I am anxious too. With the low compression (130-135 psi on my 8:1)and smoke screen behind me it ran strong. I did a road kill on a modded WRX that jumped me on the interstate, last weekend about 2 in the am. I finally let him catch up and pass me. Stayed on his butt for about a half mile then opened her up, passed him (might have been a her) again but kept going. I was doing 158 when I had to slow down for my exit. Here it is Wednesday and my adrenalin is still pumping ha!

Now with fresh rings, great compression and the IC connected....hummm, new stats and kills in my future ha!? My luck it will run like crap!

you have had some bad luck on this thing but it will be worth it. right John?

[casperlynn]

She ran fine, absolutely no problems for the first three years after I installed the SC, until the day I spun a rod bearing (leaned out on oil while taking a hard curve). That is when my misfortune fell in place, that is when I switched to the VR4 bottom end to allow for more boost. Anthing that could go wrong did. Primarily because my shop was not familiar with 3kgt's and especially my supercharger mods. With the car in the shop for over 7 months last year, it did give me the opportunity to rebuild the trans, suspension, etc.

Yes, it will be worth it. Obviously, I have a lot of patience ha!

[casperlynn]

Being the car seems to be running fine again (3 builds later), I am back to my original delima. With the IC connected, the engine stalling out when coming to a stop.

It was suggested that I install a BOV.

Being this is experimental, I am going real cheap to see if the concept works. Do you think this is the BOV I should try?

http://cgi.ebay.com/ebaymotors/39MM-...spagenameZWDVW

I am thinking about connecting it in-line with the cold air return from the IC to the intake to relieve any accessive air flow to the intake when letting off the gas.

[J-Groove]

You can pick up the Greddy knock off Type S BOVs for cheap on eBay and they are supposabley(sp?) pretty decent.

I have no personal experience though.

-John

[casperlynn]

Originally Posted by J-Groove

You can pick up the Greddy knock off Type S BOVs for cheap on eBay and they are supposabley(sp?) pretty decent.

I have no personal experience though.

-John

Hey John,

Something like so?

http://cgi.ebay.com/ebaymotors/Type-...spagenameZWDVW

Where does the vacuum line connect...to the boost source on the SC?

[J-Groove]

Originally Posted by casperlynn

Hey John,

Something like so?

http://cgi.ebay.com/ebaymotors/Type-...spagenameZWDVW

Where does the vacuum line connect...to the boost source on the SC?

I'm not sure on a supercharger, with turbo I have mine attached to the plenum. (real Greddy Type S)

-John
edit: Yeah, just like that.

[casperlynn]

Originally Posted by J-Groove

I'm not sure on a supercharger, with turbo I have mine attached to the plenum. (real Greddy Type S)

-John
edit: Yeah, just like that.

In my case, it would attach to the plenum also. Geeze, I already have the FMU, boost gauge, alchy injection, and something else already plumbed in....time for another fitting ha!

Ok, that is the BOV I will purchase...wish me luck ha!

Garrie

[whitenoise3k]

Any more on this? wondering if the problem was ever fixed?

[casperlynn]

BOV is installed but the IC piping is not connected to the SC yet as I am in the process of connecting up a digital AIT gauge to the plenum. I will probably have everything connected by next weekend.

[LittleGoose]

Entirely different platform, but my eaton uses it's own by-pass valve and it seems to do fine for as far as the M62 seems to be pushed (3.35" stock SC pulley and even those with 2.6's & 2.5's typically find no problem with that bypass valve). none of us SS/SC cobalts use a BOV that I've seen to date(and I'm an avid reader of 3si and those forums).

The extreme high majority of us with the M62's use Heat Exchangers (come stock, as do Cobras) (air-to-water) only and I've probably only seen a couple people do air-to-air intercooler conversions (typically when planning for turbo swaps). If you'd be interested in trying a heat exchanger, CX Racing is a popular ebay company that sells awesome front-mount HE's so you should check them out (Alot of us are running them inline with the stock HE and IATs drop ~20-30 degrees).

Not sure if that will be any help, but figured I'd throw some information out from another heaton supercharged vehicle setup and how ours works. If you have any questions, shoot a PM or post back here.

Edit: This is the one we use, but check out their ebay store, they have like 2 or 3 other kinds. eBay Motors: Heat Exchanger Air to Water Intercooler Cobalt Mustang (item 350044176054 end time May-02-08 18:42:48 PDT)