my n/a supercharging project complete
spoon!
Joined: Sep 2002
Posts: 1,208
Likes: 50
From: Dousman, WI
Okay, I'm a latecomer to the thread.
Cool idea, and good job making it all yourself for so little money! That's the whole spirit of innovation, trying new ideas for a given result.
You know there's stuff that can be improved. I know there's stuff that can be improved. Some other people know it can be improved too... and then some others seem to not get that, which kind of scares me, but oh well.
Not how I'd do things. But that's personal choice, and I applaud you doing this from scratch.
Cool idea, and good job making it all yourself for so little money! That's the whole spirit of innovation, trying new ideas for a given result.
You know there's stuff that can be improved. I know there's stuff that can be improved. Some other people know it can be improved too... and then some others seem to not get that, which kind of scares me, but oh well.
Not how I'd do things. But that's personal choice, and I applaud you doing this from scratch.
Full Member
Joined: Dec 2003
Posts: 193
Likes: 0
From: Lombard, IL
Originally posted by wozzoom
Skip the air pump. If you want to keep the 6-ports operating, then all you have to do is plumb them into the intake... When the SC builds boost of 1-2 PSI in the intake, the 6-ports will open. When there is not boost, the ports will close. Done.
Skip the air pump. If you want to keep the 6-ports operating, then all you have to do is plumb them into the intake... When the SC builds boost of 1-2 PSI in the intake, the 6-ports will open. When there is not boost, the ports will close. Done.
Originally posted by wozzoom
Mounting the SC on the drivers side seems to be a move in the right direction, just not sure if we can get it to fit there... I'm waiting for my M90 to get here so I can see.
Mounting the SC on the drivers side seems to be a move in the right direction, just not sure if we can get it to fit there... I'm waiting for my M90 to get here so I can see.
Rotary Enthusiast
Joined: May 2001
Posts: 903
Likes: 1
From: Conyngham, PA
[QUOTE]Originally posted by DEZERTE
[B]
Until someone shows a dyno run WITH A SUPERCHARGER and the ports operating vs. ports wired open, this is speculation. So I'll disagree with DEZERTE.
The person that posted the question wanted to know how to operate the ports...I can't think of an easier way to do so.
[B]
Originally posted by pyrojunkie
With the supercharger making boost so quickly wouldn't it be the same just to wire open the ports?
Damn straight.
With the supercharger making boost so quickly wouldn't it be the same just to wire open the ports?
Damn straight.
The person that posted the question wanted to know how to operate the ports...I can't think of an easier way to do so.
Originally posted by zbrown
The pulley i had machined at a place where they rebuild electric motors. I went there because since the s/c has a straight shaft just like electric motors and not a tapered one i figured he could set me up with some thing. All he had to do was drill the shaft hole out slightly and cut a different sized key into a pulley he had on hand.
The pulley i had machined at a place where they rebuild electric motors. I went there because since the s/c has a straight shaft just like electric motors and not a tapered one i figured he could set me up with some thing. All he had to do was drill the shaft hole out slightly and cut a different sized key into a pulley he had on hand.
Rotary Enthusiast
Joined: Oct 2001
Posts: 898
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From: T.O
I have a few questions as was posted. I know the 89-95 SC tbirds and cougar xr7's are the donor cars for m90's that are proven to work, HOWEVER, are the 3.8 mustangV6 m90's the same?? If so, that would open up a lot more donor cars.. wait a minute.. Why would they be different? I am assuming that they are the same from just thinking about it, since both are ford.. and both m90's on the ford.
Also, since it hasnt been really mentioned much, I know the GSL-SE's injectors are larger, and therefore in theory would be able to handle more hp, and consequently more boost.
I already have my 5/6th ports wired wide open, and have a RB race header, 2.5" straightpiping.. so technically there are few restrictions there. I would also look into an FMIC or TMIC just to make sure things are safer, cooler intake charge, and possibly gain a bit more hp. Also, I have my air conditioning pump removed, and there is enough space there I imagine. I assume that a 1.75 overdrive pulley would be great so that at 2300rpm the S/C is running at a favourable ~4000rpm, and at 7000rpm the S/C is at ~12,000rpm, and if you wish to push it a bit more.. 8000rpm would be the 14,000 S/C redline.
If I was to do this, I would also try to vent the hood slightly to keep things a bit cooler as well.
PS.. you guys have to remember to keep this thread uncluttered. I see a lot of bs crap, and it would be great if you tried to post everything at once so that it isnt so big.. I just read through all 17 pages tonite.
Daryl
Also, since it hasnt been really mentioned much, I know the GSL-SE's injectors are larger, and therefore in theory would be able to handle more hp, and consequently more boost.
I already have my 5/6th ports wired wide open, and have a RB race header, 2.5" straightpiping.. so technically there are few restrictions there. I would also look into an FMIC or TMIC just to make sure things are safer, cooler intake charge, and possibly gain a bit more hp. Also, I have my air conditioning pump removed, and there is enough space there I imagine. I assume that a 1.75 overdrive pulley would be great so that at 2300rpm the S/C is running at a favourable ~4000rpm, and at 7000rpm the S/C is at ~12,000rpm, and if you wish to push it a bit more.. 8000rpm would be the 14,000 S/C redline.
If I was to do this, I would also try to vent the hood slightly to keep things a bit cooler as well.
PS.. you guys have to remember to keep this thread uncluttered. I see a lot of bs crap, and it would be great if you tried to post everything at once so that it isnt so big.. I just read through all 17 pages tonite.
Daryl
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Joined: Feb 2001
Posts: 26,664
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From: n
Originally posted by hotty
I have a few questions as was posted. I know the 89-95 SC tbirds and cougar xr7's are the donor cars for m90's that are proven to work, HOWEVER, are the 3.8 mustangV6 m90's the same??
I have a few questions as was posted. I know the 89-95 SC tbirds and cougar xr7's are the donor cars for m90's that are proven to work, HOWEVER, are the 3.8 mustangV6 m90's the same??
-Ted
Rotary Enthusiast
Joined: Oct 2001
Posts: 898
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From: T.O
the 3.8L m90's i can find on ebay are aftermarket for a mustang I assume, such as the 3.8L vortech S/C .. I was just going on a whim of what someone on the 16th page posted about seeing them on ebay. HOWEVER.. there is an m90 from a 2003 Grand Prix GTP.. I am wondering if these are very similar to the tbird s/c's .. anyone?
I am assuming yes.. because the housings do not look molded as was suggested about the 3.8L buick S/C's.
I am assuming yes.. because the housings do not look molded as was suggested about the 3.8L buick S/C's.
**-P I drive a miata.
Joined: Jul 2002
Posts: 1,600
Likes: 0
From: albany, GA
Originally posted by hotty
I have a few questions as was posted. I know the 89-95 SC tbirds and cougar xr7's are the donor cars for m90's that are proven to work, HOWEVER, are the 3.8 mustangV6 m90's the same?? If so, that would open up a lot more donor cars.. wait a minute.. Why would they be different? I am assuming that they are the same from just thinking about it, since both are ford.. and both m90's on the ford.
Also, since it hasnt been really mentioned much, I know the GSL-SE's injectors are larger, and therefore in theory would be able to handle more hp, and consequently more boost.
I already have my 5/6th ports wired wide open, and have a RB race header, 2.5" straightpiping.. so technically there are few restrictions there. I would also look into an FMIC or TMIC just to make sure things are safer, cooler intake charge, and possibly gain a bit more hp. Also, I have my air conditioning pump removed, and there is enough space there I imagine. I assume that a 1.75 overdrive pulley would be great so that at 2300rpm the S/C is running at a favourable ~4000rpm, and at 7000rpm the S/C is at ~12,000rpm, and if you wish to push it a bit more.. 8000rpm would be the 14,000 S/C redline.
If I was to do this, I would also try to vent the hood slightly to keep things a bit cooler as well.
PS.. you guys have to remember to keep this thread uncluttered. I see a lot of bs crap, and it would be great if you tried to post everything at once so that it isnt so big.. I just read through all 17 pages tonite.
Daryl
I have a few questions as was posted. I know the 89-95 SC tbirds and cougar xr7's are the donor cars for m90's that are proven to work, HOWEVER, are the 3.8 mustangV6 m90's the same?? If so, that would open up a lot more donor cars.. wait a minute.. Why would they be different? I am assuming that they are the same from just thinking about it, since both are ford.. and both m90's on the ford.
Also, since it hasnt been really mentioned much, I know the GSL-SE's injectors are larger, and therefore in theory would be able to handle more hp, and consequently more boost.
I already have my 5/6th ports wired wide open, and have a RB race header, 2.5" straightpiping.. so technically there are few restrictions there. I would also look into an FMIC or TMIC just to make sure things are safer, cooler intake charge, and possibly gain a bit more hp. Also, I have my air conditioning pump removed, and there is enough space there I imagine. I assume that a 1.75 overdrive pulley would be great so that at 2300rpm the S/C is running at a favourable ~4000rpm, and at 7000rpm the S/C is at ~12,000rpm, and if you wish to push it a bit more.. 8000rpm would be the 14,000 S/C redline.
If I was to do this, I would also try to vent the hood slightly to keep things a bit cooler as well.
PS.. you guys have to remember to keep this thread uncluttered. I see a lot of bs crap, and it would be great if you tried to post everything at once so that it isnt so big.. I just read through all 17 pages tonite.
Daryl
do NOT run an overdrive pulley just yet. Do you have any idea what kind of boost that is going to make? I think you should try and do some calculations first. I think the s5 n/a moves some 300 or so CFM@ redline? and the m90 moves 550(sucks 550 in...) or so cfm at its max. at 5lbs of boost.
I think you'll have more boost than you want if you run that supercharger to its redline.
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Joined: Oct 2001
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From: T.O
good point.. well taken.. as I know now as well that the GTP supercharger has the molded output .. however, I am sure this can be modified, and I personally would not worry about this. Nonameo, I assume that Zbrown has his S/C overdriven roughly by 1.5. I am assuming this from his post saying that the blower will not exceed 11,000rpm often.. just from a rough guess if this is at 7000 rpm... that gives a rough 1.5 overdrive.
This all can be set by varying the difference in size of the E-shaft pulley vs the S/C pulley, or in other words.. the size of the S/C pulley.
This all can be set by varying the difference in size of the E-shaft pulley vs the S/C pulley, or in other words.. the size of the S/C pulley.
