Possible resolutions with Supercharger problems

Meatman · 09-10-2002, 07:15 PM

Talked with C&L and Paxton today regarding my backfires and surging with the C&L 73mm and the Novi 1000.

C&L said that I have two 'things', first the MAF is two close to the inlet of the blower which results in the backfires (which I get when I let off the throttle at 2500rpm+) and the surging, secondly there is no Bypass valve to relieve the pressure resulting from a closed throttle @ high RPM....the other reason I backfire. C&L suggested the movement of the MAF into the fender to increase the distance between the MAF and Blower inlet. Secondly....put a bypass valve on.

Paxton agreed that movement of the 'aftermarket meter' should be done, they disagreed with the bypass valve due to the lower boost of the 1000.

Anyway, I went to home depot, picked up some piping and designed a new pipe to relocate my MAF.

What'ya think?....no comments about the bar codes (still there in case I have to take the parts back)

Here is the "stock" paxton setup for the MAF to inlet pipe

Here is my attempt at the re-routed "superpipe"

bri32zz · 09-10-2002, 07:44 PM

I had the same thing done with mine. C&L help my mechanic with this suggestion. It really does help.

93GTDIN · 09-10-2002, 08:04 PM

If your MAF is before the blower in the intake route, that is your problem. It needs to be post-boost or it will send false readings to your computer.

Meatman · 09-11-2002, 07:43 AM

No one has mentioned that....I think that is incorrect.

302 LX Eric · 09-11-2002, 08:32 AM

I would strongly recommend a bypass / blow-off valve. I'm really surprised the kit didn't come with one. Think about what happens if you're at 5500 and then jump off the throttle. That throttle blade shuts so darn quick and your blower impeller is still spinning very fast. Not a good situation.

As for the metering issue....well, when I setup my ProCharger, it will definitely be a 'blow-thru' meter from Pro-M, probably the new Univer meter they have. A MAF after the blower will provide better idle, and will increase the overall driveability of the car. This is info is straight from the guys at LaRocca's - supercharger experts. Just passing along what I've been told.

E

09-10-2002, 07:15 PM	#1
Meatman Registered Member Join Date: Sep 2002 Location: Brampton Posts: 16	Possible resolutions with Supercharger problems Talked with C&L and Paxton today regarding my backfires and surging with the C&L 73mm and the Novi 1000. C&L said that I have two 'things', first the MAF is two close to the inlet of the blower which results in the backfires (which I get when I let off the throttle at 2500rpm+) and the surging, secondly there is no Bypass valve to relieve the pressure resulting from a closed throttle @ high RPM....the other reason I backfire. C&L suggested the movement of the MAF into the fender to increase the distance between the MAF and Blower inlet. Secondly....put a bypass valve on. Paxton agreed that movement of the 'aftermarket meter' should be done, they disagreed with the bypass valve due to the lower boost of the 1000. Anyway, I went to home depot, picked up some piping and designed a new pipe to relocate my MAF. What'ya think?....no comments about the bar codes (still there in case I have to take the parts back) Here is the "stock" paxton setup for the MAF to inlet pipe Here is my attempt at the re-routed "superpipe" Here is my attempt at the re-routed "superpipe" __________________ Meatman Novi Blown '93 5.0 LX Hatch AOD w/Lentech VB 14.124 @ 97.93MPH (before blower) 206.9 RWHP/263TQ Low 13's is my next goal! Meatman's StangPage

09-10-2002, 07:44 PM	#2
bri32zz Registered Member Join Date: Aug 2002 Location: Canton GA Posts: 216	I had the same thing done with mine. C&L help my mechanic with this suggestion. It really does help. __________________ My CAR IS GONE R.I.P----I miss YOU 331ci, 69 Windsor heads ported and shaved , Trick Flow-Intake ported,JE blower pistons, Custom cam 542 lift, 1.73 rrs, Equal length headers, BBK Hi-Flow cats, Hurst shifter, 3:73 gears, Tremec 3550 tranny,Lakewood drag suspension-90/10 in front and 50/50 in the back. Lakewood traction bars. Edelbrock 70mm tb, K&N filter, Kirban fuel reguator, Custom sub-Frame connectors,83 lb squirters, powerdyne blower with 12psi pulley, http://www.pumpoperators.com/brian/ Rice Haters Club Member #82 My wife is AWSOME!!!!!!!!

09-10-2002, 08:04 PM	#3
93GTDIN Registered Member Join Date: Jan 2001 Location: Live music capital of the world, TX Posts: 324	If your MAF is before the blower in the intake route, that is your problem. It needs to be post-boost or it will send false readings to your computer. __________________ 96 Cobra - a bit too stock. 14.0 @ 101

09-11-2002, 07:43 AM	#4
Meatman Registered Member Join Date: Sep 2002 Location: Brampton Posts: 16	No one has mentioned that....I think that is incorrect. __________________ Meatman Novi Blown '93 5.0 LX Hatch AOD w/Lentech VB 14.124 @ 97.93MPH (before blower) 206.9 RWHP/263TQ Low 13's is my next goal! Meatman's StangPage

09-11-2002, 08:32 AM	#5
302 LX Eric or '331 LX Eric' Join Date: Jan 1999 Location: Columbus, Ohio Posts: 2,142	I would strongly recommend a bypass / blow-off valve. I'm really surprised the kit didn't come with one. Think about what happens if you're at 5500 and then jump off the throttle. That throttle blade shuts so darn quick and your blower impeller is still spinning very fast. Not a good situation. As for the metering issue....well, when I setup my ProCharger, it will definitely be a 'blow-thru' meter from Pro-M, probably the new Univer meter they have. A MAF after the blower will provide better idle, and will increase the overall driveability of the car. This is info is straight from the guys at LaRocca's - supercharger experts. Just passing along what I've been told. E __________________ 1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60'

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