If I delete the parasitic smog equiptment on my engine and move to march pulleys is there a certain belt that is required?

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91' red RS convert.
71,000 miles
89' IROC hood
red Z-28 16" rims
potenza re730's
MSD ignition
MSD coil
K&N fiter
350 ported polished heads
hypertech chip
flowmaster 40 series cat-back

 

Yes, without a belt your car wont run for long before overheating and running out of battery power

 

With the march pulleys did you need a different sized belt? Since you need a 96.8" belt when you remove the smog pump, figure if the march pulleys needed a longer belt then just add the difference, if shorter, subtract. It's that easy. If I'm wrong then somebody correct me.

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, Jon (350 TBI! getting 23mpg highway)
91 Red RS w/grey int, sq stereo (Alpine v12, kicker solo, MB quart premium etc)

• Holley 670 TB unit w/ 1/2" spacer/adapter
• Edelbrock RPM vortec intake
• 350ho 330hp vortec crate motor
• 8" harm. balancer
• Stewart stage 2 water pump w/160 thermo
• SLP tri-y headers to full 3"
• Rebuilt trans w/ SLP shift kit
• Centerline 16x8's all around
• 36/24 mm sway bars
• Full poly bushings, even motor mounts
• SLP LCA and panhard
• Alston SFCs
• Edelbrock 3 point STB
• Global west steering brace aka wonderbar
• Eibach pro kit springs
• Bilstien high perf. struts and shocks
• All this and I still have AC

My websiteAny questions?

 

nope..you keep the same size belt with the smog delete pulley. its a smaller pulley, but GM did their homework and moved it out away from teh center of the motor, so it ends up being the same.

but..if you go with march pulleys you willneed a shorter belt. i know this because i just put them on my car. and i have the smog delete pulley too, and everything worked out well. i am at school right now, so i cant tell you how long my belt was though. i can post it if you want. i have the march #4000 kit.

-brian

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1991 Camaro RS - ultra blue metallic, t-tops
GMPP 350 HO crate engine - TBI, MSD ignition, SLP exhaust
700R4 - 2,400 stall converter, vette servo
10 bolt - SLP zexel torsen differential, GM 3.42s
z28boy.fbody.com
z28boy@twcny.rr.com
AIM - "Z28 Boy"

1998 Pontiac Grand Prix GT - 2 door, black

 

Ive asked this question and no one will answer...will it affect the ac and heater?
Meaning can i still use them??? Not worried about emissions.
thanks
jon

 

question, why waste the money on the smog delete pulley when you can delete the smog pump for free? There is an article in the tech section on how to do it

 

what do you mean Jon? will a smog pump removal affect the aC and heater? not at all

 

Thanks so i can keep the ac and heater??
Everytime i see pictures, of other engines ,
i never see the compressor for the ac\heater
pump..when the smop is deleted
thanks
jon