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NG900 & OG9-3 Performance, Mods & Tuning Covers Tuning & Performance modifications for the NG900 (1994 to 1998) & OG9-3 (1999-2002) & '03 Convertible

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  #1  
Old 1st November 2005
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Question pulleys

Hey All,

I have been observing this site for over a year and 1/2 now.
But as I plan more and more mods I figured now was a good time to put my name down and hope to get some questions answered and maybe bring something new to the table.

I just spent the last couple of days (I could happily do it for a few months) perusing the past entries and didn't find my answer so here it goes....

I'm interested to know if there are lighter weight/performance pulley kits for our NG900's and where to get them.

I haven't been able to find any using various search engines so I thought I'd try here. If there are none, would a pulley kit for a Cobalt SS fit as they are both Ecotec's?

Many thanks for any replies, (big thanks to 912 for pointing me right)

Chris
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  #2  
Old 3rd November 2005
Soon To be Saab Owner Soon To be Saab Owner is offline
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I am nearly positive the pulley kit for the Cobalt SS is for a smaller pulley to put on its supercharger. I was not aware we use an ecotec either? Actually, I am nearly positive our engines are not. I believe in the newer 2003+ 9-3s they use an ecotec. Yet, we do not.... I think.

But to answer your question, I do not believe the SS pulley kit would work.
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  #3  
Old 3rd November 2005
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Even the newer engines are ecotec-like derivatives. The 94-03 engine is not even that, as far as I know. Seeing as it was developed a good ten years (at least) before the ecotec.
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  #4  
Old 3rd November 2005
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lol...huh?

we do use ecotec, but not the same as those cars, saturn-cobalt-whatever...otherwise there would be an abundant number of parts for us that arent out

so far there arent any pulley kits, unfortunetly, at leas tnone that ive heard and ive been around long enough to know MOST mods for the 99-03 9-3s
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  #5  
Old 3rd November 2005
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Now, now. WE don't, the newer 9-3 does. But it is not quite the same as the ones in the Saturn.

Remember: http://en.wikipedia.org/wiki/GM_Ecotec_engine#SAAB
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  #6  
Old 3rd November 2005
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Oh well,

Guess I'll to have them custom made myself....

Chris
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  #7  
Old 3rd November 2005
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There is very little mass that can be removed from the pulleys. I would not want to underdrive the accessories. (I actually want a bit faster pulley for my power steering on the Viggen.)

A bigger gain is in many other places. But if you must, a lighter flywheel and removing the balance shafts (more involved than that) will be a nice improvement. Many other places to gain for cheaper though.
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  #8  
Old 3rd November 2005
ParaMedic_Saab ParaMedic_Saab is offline
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ummm, i have a 2001 saab 93 se, and on the top of the engine, it clearly says ecotec on it.... maybe i am wrong in assuming its an ecotec... but its there..
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  #9  
Old 3rd November 2005
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Actually it clearly says ECOPOWER, it is the Saab B205 The same old saab motor... Not anywhere near the L850(ecotec) used in the new 9-3 2003-on.
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  #10  
Old 3rd November 2005
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my mistake,
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  #11  
Old 3rd November 2005
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I suppose we will forgive you....just this once.

Hey, don't feel bad, GM probably thought it was an ecotec as well. They don't really pay attention to details very well, do they?
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  #12  
Old 4th November 2005
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ParaMedic_Saab just trying to eliminate bad info.. sorry for the tone.

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  #13  
Old 4th November 2005
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mmmm, polished delivery pipe....

Give me that one, the owner of that car isn't worth with such a dirty engine bay!

Although, that's a 9-5, right?
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  #14  
Old 4th November 2005
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Yeah, it is (it's in Nick's gallery) but what are u implying about 9-5s?
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  #15  
Old 4th November 2005
GaryG GaryG is offline
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You can buy a polished aluminum pulley from eBay. Check out item # 8011669040. Also look at wazeepulleys.com
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  #16  
Old 10th December 2005
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Quote:
Originally Posted by stromer
mmmm, polished delivery pipe....

Give me that one, the owner of that car isn't worth with such a dirty engine bay!

Although, that's a 9-5, right?
Bummer... No delivery pipe for the 9-3?
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  #17  
Old 10th December 2005
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When the delivery pipe (pressure side) is changed the transient response
due to increased volume is affected. If you installed it without
software changes you would have Issues. Mostly airmass limitation from
spoolup. The other thing is that in a hot climate the plastic pipe is preferred unless extreme power is planned. The plastic pipe seems better than the early aluminum part.

If the pipe is made too big without corresponding increaased airmass the
laminar airflow is disruptred and can actually flow worse! Plus dealing
with airmass limitation is very frustrating. Imagine every time you
downshift then give it full throttle it falls on its face till you
restart the car. Yes I have plenty of experience with this on our cars
and on the software side. Trionic7 (and8) are very picky about having
hardware that matches the software since they are all based on airmass
or airflow and torque maps to control the electronic throttle.

On my car even at 300hp the stock plastic pipe was not a major problem.
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  #18  
Old 10th December 2005
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thats interesting does it apply to t5 engine management to ? cus i'm in the middle of having a 60mm delivery pipe made up for my 9-3
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  #19  
Old 10th December 2005
liketheword liketheword is offline
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Quote:
Originally Posted by NickTaliaferro
When the delivery pipe (pressure side) is changed the transient response
due to increased volume is affected. If you installed it without
software changes you would have Issues. Mostly airmass limitation from
spoolup. The other thing is that in a hot climate the plastic pipe is preferred unless extreme power is planned. The plastic pipe seems better than the early aluminum part.

If the pipe is made too big without corresponding increaased airmass the
laminar airflow is disruptred and can actually flow worse! Plus dealing
with airmass limitation is very frustrating. Imagine every time you
downshift then give it full throttle it falls on its face till you
restart the car. Yes I have plenty of experience with this on our cars
and on the software side. Trionic7 (and8) are very picky about having
hardware that matches the software since they are all based on airmass
or airflow and torque maps to control the electronic throttle.

On my car even at 300hp the stock plastic pipe was not a major problem.
Wow that is very intresting. Is this also a valid argument against not doing exhaust/intake/IC before ECU? Or will doing these things still produce positive results? Be it not maxium optimization until the ECU is added...
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  #20  
Old 11th December 2005
Soon To be Saab Owner Soon To be Saab Owner is offline
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I am not certain, but I am guessing that the T7 ECU will most likely adapt to these mods. Although T5 is not quite as picky with it as we don't have a MAF, so it isn't quite as smart. Would you agree, nick?
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