It has come to our attention that the Electronic MAP sensor by-pass switch that some of you built and are using will break the blower mounting brackets. You need to be using the supplied vacuum check valve assembly that came with your kit from Comptech. You need to inspect make sure that your brackets are not cracked or broken.

After many thousands of hard miles on our shop S2000 w/ the S.C. we have had no cracked brackets and after 400 miles w/ the Electronic Switch the brackets cracked. We have then backed up this test on two customer cars.

The cracks will start on the Alternator extention bracket and may extend to the Vtec mounting bracket and front plate. If you find one of your brackets cracked, you should replace both the Vtec mounting bracket and the Alternator extention bracket and check the front plate for any cracks. These brackets will not be covered under warranty if you have been using parts not supplied with the kit from Comptech. Please contact our sales department @ 916-933-1080 for replacement parts.

 

Shad,

I'm not a SC owner, but I've been following the electronic sensor design from afar. I'm sure I'm missing something very important here, but can you explain how an electronic sensor workaround is harming the SC brackets? Is it causing hard torque start-ups or something similar?

 

Yeah, and wearing glasses makes people smarter

And for you classically trained types:
Population Correlation Coefficient (rho) = ZERO!

Unless of course I'm missing something here, Mr. Huntley, would you be so kind as to elaborate on the failure mechanism we are encountering here (i.e. how does the cars ECM crack the mounts)?

Not trying to be an A-hole, just seriously not comprehending the situation.

BTW, I wear my glasses as often as I can j/k

 

Is the ECM or the bracket made by stone guard?

 

LOL

 

Ouch!

 

Maybe the ones without the electronics run bad enough to be driven less.

 

That's a good one Jim, or maybe the brackets had an adverse reaction to the cleaning solvents used while building or installing the electronic solution.

 

All joking aside, I take my electronic designs seriously. While I never saw the final circuit (got too bored with such a long thread), the ones shown halfway through the thread were certainly on the right track. Since I take my circuits so seriously (and assuming I had designed it), I would consider this a VERY serious accusation. I'm patiently waiting for Shad's explanation, but this had better be a good one. If his only data is 2 or 3 SCed cars that have broken mounts, not only would I consider the statistics totally whacked (yeah, talk about an odd rho...maybe we should call it a rho of 1.000000001 ), but I would seriously call into question the logic used to come to that conclusion. It sounds REALLY wierd, but I'll keep an open mind until the facts are in...

 

Mac and everyone else, I am one of the two customers that experienced broken brackets. Why and how they broke is still a mystery. The only common denominator is the "ghostbooster". In the 3 cars that experienced this problem, all of them had the ghostbooster. Shad basically re-installed my SC with new brackets and he put the check valve back on. Since this was done I have not experienced any problems at all with cracking or breaking.

Prior to the check valve, both of my brackets (altenator side and VTEC side) broke and a stress facture was noticeable in the plate.

I to this day have no clue why an electronic fix would be the cause of the broken brackets but to me, when you have more than one case and each case has one common denominator then that is reason enough for me to wait and see if there is a reason why this is happening and if there is going to be a fix.

I am as anxious as you all to find out why.

By the way my car runs fine so far. I would say the throttle response is not as good with the check valve but it isn't bad. Just my .02.