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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 03-31-2003, 10:32 AM   #1
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Default A little more HP

I have a 92 SSE SC. I was interested in getting that smaller pulley for the supercharger, now I have 106,000mi. Is there anything that I have to worry about. The SC is a rebuilt from Mangson w\ close to 15,000mi, so I'm not to worried about anything going wrong with that. Although with the rebuilt SC I can peg the boost gauge at WOT on cooler nights. Is it possible that if I get a new pulley I could push too much boost? I was also concerned with the engine itself, would I have to worry about the added HP to the engine?? Also I thought I read somewhere a while back about a some type of porting you can you can do to the exhaust manifolds, if anyone can elaborate on that it would be appreciated.

Now what about underdrive pulleys. As far as I know there is not a set out there for the series one engine. But has anyone ever gathered up some random pulleys that would do the job?
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Old 03-31-2003, 08:02 PM   #2
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Default A little more HP

I know for the series II the waterpump pulley is 5" in diameter and the zzp is 5.5", if they have the same bolt pattern then they should work although i have no idea what size the series 1 is. So if the series 1 is smaller than 5" and the bolt pattern is the same you could probably pull the 5" one off a junked series II. Just a big guess but who knows it might work.
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Old 04-05-2003, 12:01 PM   #3
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Default Re: A little more HP

Quote:
Originally Posted by 95naSTA
I know for the series II the waterpump pulley is 5" in diameter and the zzp is 5.5", if they have the same bolt pattern then they should work although i have no idea what size the series 1 is. So if the series 1 is smaller than 5" and the bolt pattern is the same you could probably pull the 5" one off a junked series II. Just a big guess but who knows it might work.

I think he was speaking of the */C pulley....
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Old 04-05-2003, 12:03 PM   #4
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Default Re: A little more HP

Quote:
Originally Posted by 92SSESC
I have a 92 SSE SC. I was interested in getting that smaller pulley for the supercharger, now I have 106,000mi. Is there anything that I have to worry about. The SC is a rebuilt from Mangson w\ close to 15,000mi, so I'm not to worried about anything going wrong with that. Although with the rebuilt SC I can peg the boost gauge at WOT on cooler nights. Is it possible that if I get a new pulley I could push too much boost? I was also concerned with the engine itself, would I have to worry about the added HP to the engine?? Also I thought I read somewhere a while back about a some type of porting you can you can do to the exhaust manifolds, if anyone can elaborate on that it would be appreciated.

Now what about underdrive pulleys. As far as I know there is not a set out there for the series one engine. But has anyone ever gathered up some random pulleys that would do the job?
AS for underdrive pulleys for Series I...I haven't found any yet either...STILL looking..
AS for the */C pulley...don't go below 2.2" ...Unless oyu have serious mod'* to back it up...

I have 2.2 on mine...w/ minimal mod'* at this time...LOVE IT...pegs 10 psi...IN PARK!!!!!
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Old 04-05-2003, 12:18 PM   #5
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your car must be a gasaholic!
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Old 04-05-2003, 12:36 PM   #6
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Quote:
Originally Posted by macho_mike21
your car must be a gasaholic!
IF you were referring to my ride..no it'* not...I still get 18-20 city......28-30 Highway...with my foot in the Throttle Body
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Old 04-09-2003, 10:27 AM   #7
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So from what I have read that even if I can already peg my boost gauge it would still be ok because of the release valve. I figure that I would just get more boost at lower rpm but the PCM would still limit the boost at high end. Does this make sense to anyone else? Is this good reasoning? I would really hate to mess something up by running a smaller pulley...
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Old 04-09-2003, 01:02 PM   #8
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Quote:
Originally Posted by 92SSESC
So from what I have read that even if I can already peg my boost gauge it would still be ok because of the release valve. I figure that I would just get more boost at lower rpm but the PCM would still limit the boost at high end. Does this make sense to anyone else? Is this good reasoning? I would really hate to mess something up by running a smaller pulley...
IN theory you would be correct...But since I've had mine installed..(about 1 week)..Seems to have considerable more amount of torque off the line..(ie..boost) And as for top end...seems to boost for longer period of time...before by-pass kicks in..IMO....go to a smaller pulley.................
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Old 04-09-2003, 01:26 PM   #9
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Well if no one has any further warnings or concerns about this pulley pushing too much boost for the car to handle I might as well go ahead and order it. I'll probably order it sometime next week, I'm a college student and money tends to get tight. I'll let you how it works. I plan on going to the track with in the week, I'll get some times there then get sometimes with the pulley and post the difference, I'll also have a nice post if this pulley causes some type of internal engine problem.....

P.*. With the mods listed in my sig, should I add anymore before geting the pulley?? Like a tranny cooler??
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Old 04-09-2003, 02:26 PM   #10
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con10der, what have you done that gives you such good gas mileage?
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