A&A Corvette Performance:Forced Induction Q&A thread
04-22-2014, 11:18 AM
#621
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With all those mods you should probably start with a 3.6" because it's going to make great power without even trying.
04-22-2014, 05:26 PM
#622
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04-22-2014, 05:52 PM
#623
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You should ask the guy that will be tuning how much power he is fine with tuning for on pump gas only. He might only want you to run a 3.8" pulley and see what power it makes first.
04-22-2014, 06:12 PM
#624
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How can I tell what size pulley is on there now? And where can I buy a new pulley?
04-22-2014, 06:16 PM
#625
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It's usually stamped or etched on the front of the pulley. You can order new pulley and/or belt right from our website.
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04-22-2014, 06:23 PM
#626
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04-26-2014, 04:28 PM
#627
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Can you tell me a little bit about which size pulley works best with which situation, please.
Where does the 3.25" pulley fit in with a stock LS1, auto transmission, V3 Si?
Edited to add:
The reason I asked is because Donald4972 had one installed. Although, I didn't notice until after my post that he has the T trim supercharger. I'm guessing that would change things when considering I'm going with the Si trim.
"I have the V3 T trim supercharger. It has the 3.25 pulley.
As I wrote earlier, my LS1 is completely stock. So Andy gave me the mild tune, I requested.
With that V3, I could easily upgrade to some big numbers, if I wished to upgrade some of the internals on my engine.
For now, I don't wish to do that. But, I always reserve the right to change my mind; about everything..."
Thank you.
Where does the 3.25" pulley fit in with a stock LS1, auto transmission, V3 Si?
Edited to add:
The reason I asked is because Donald4972 had one installed. Although, I didn't notice until after my post that he has the T trim supercharger. I'm guessing that would change things when considering I'm going with the Si trim.
"I have the V3 T trim supercharger. It has the 3.25 pulley.
As I wrote earlier, my LS1 is completely stock. So Andy gave me the mild tune, I requested.
With that V3, I could easily upgrade to some big numbers, if I wished to upgrade some of the internals on my engine.
For now, I don't wish to do that. But, I always reserve the right to change my mind; about everything..."
Thank you.
Last edited by NewWorldBlues; 04-26-2014 at 05:12 PM.
04-26-2014, 08:26 PM
#628
Platinum Supporting Vendor
Can you tell me a little bit about which size pulley works best with which situation, please.
Where does the 3.25" pulley fit in with a stock LS1, auto transmission, V3 Si?
Edited to add:
The reason I asked is because Donald4972 had one installed. Although, I didn't notice until after my post that he has the T trim supercharger. I'm guessing that would change things when considering I'm going with the Si trim.
"I have the V3 T trim supercharger. It has the 3.25 pulley.
As I wrote earlier, my LS1 is completely stock. So Andy gave me the mild tune, I requested.
With that V3, I could easily upgrade to some big numbers, if I wished to upgrade some of the internals on my engine.
For now, I don't wish to do that. But, I always reserve the right to change my mind; about everything..."
Thank you.
Where does the 3.25" pulley fit in with a stock LS1, auto transmission, V3 Si?
Edited to add:
The reason I asked is because Donald4972 had one installed. Although, I didn't notice until after my post that he has the T trim supercharger. I'm guessing that would change things when considering I'm going with the Si trim.
"I have the V3 T trim supercharger. It has the 3.25 pulley.
As I wrote earlier, my LS1 is completely stock. So Andy gave me the mild tune, I requested.
With that V3, I could easily upgrade to some big numbers, if I wished to upgrade some of the internals on my engine.
For now, I don't wish to do that. But, I always reserve the right to change my mind; about everything..."
Thank you.
04-27-2014, 12:25 AM
#629
Burning Brakes
Josh,
I just took out the underdrive pulley and put in a stock sized ATI still running the 3.6 and jeez does this thing take off LOL. going to see Ryne on Thursday for the final tuning. I will let you know how it goes
I just took out the underdrive pulley and put in a stock sized ATI still running the 3.6 and jeez does this thing take off LOL. going to see Ryne on Thursday for the final tuning. I will let you know how it goes
04-28-2014, 12:05 PM
#630
Platinum Supporting Vendor
Ok cool. Sounds like a beast with all the new boost.
04-29-2014, 04:42 PM
#631
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You will want to start with the 3.6" with your stock LS1/A4/V3Si-trim. It will still make big gains and keep power in a safe window for the stock engine. Don's project was a little different than most and was de-tuned to keep the power down using the T-trim.
Do recommend any other belts, hoses, or pulleys be upgraded at the same time as the SC install? The car has 80k on it, and I'm wonder if there is anything I should upgrade as a preventive maintenance measure that would be easier to do before the SC install. Typically if it ain't broke don't fix it applies, but I'm just wondering if the question has been posed before and what you recommend.
Last edited by NewWorldBlues; 04-29-2014 at 04:48 PM.
04-29-2014, 04:59 PM
#632
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Okay, thanks Josh.
Do recommend any other belts, hoses, or pulleys be upgraded at the same time as the SC install? The car has 80k on it, and I'm wonder if there is anything I should upgrade as a preventive maintenance measure that would be easier to do before the SC install. Typically if it ain't broke don't fix it applies, but I'm just wondering if the question has been posed before and what you recommend.
Do recommend any other belts, hoses, or pulleys be upgraded at the same time as the SC install? The car has 80k on it, and I'm wonder if there is anything I should upgrade as a preventive maintenance measure that would be easier to do before the SC install. Typically if it ain't broke don't fix it applies, but I'm just wondering if the question has been posed before and what you recommend.
You might consider installing a new harmonic balancer at this time since you have 80k miles already. Summit Racing #C2501 is a great replacement that is SFI-spec. Better than putting a new GM balancer on that wobbles straight out of the box.
If you have a '03-'04 then you already have the better alternator bracket with stronger casting.
04-29-2014, 05:24 PM
#633
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Check your a/c belt and tensioner.
You might consider installing a new harmonic balancer at this time since you have 80k miles already. Summit Racing #C2501 is a great replacement that is SFI-spec. Better than putting a new GM balancer on that wobbles straight out of the box.
If you have a '03-'04 then you already have the better alternator bracket with stronger casting.
You might consider installing a new harmonic balancer at this time since you have 80k miles already. Summit Racing #C2501 is a great replacement that is SFI-spec. Better than putting a new GM balancer on that wobbles straight out of the box.
If you have a '03-'04 then you already have the better alternator bracket with stronger casting.
05-02-2014, 11:04 AM
#634
I have a question about the Vortech V2Si (that uses engine oil for lubrication). I want to know if it's possible or if anyone has done it, to use, say, an LS7 dry sump tank or similar custom oil container and one of those electric oil pumps that the STS rear turbo guys use on a Vortech. Seems to me it would allow the unit to run pretty cool without the hot engine oil circulating through it, my only concern would be would the oil get warm/hot enough to flow well ? Could you run thinner oil, even non-motor oil ? Thanks .
05-02-2014, 12:05 PM
#635
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I have a question about the Vortech V2Si (that uses engine oil for lubrication). I want to know if it's possible or if anyone has done it, to use, say, an LS7 dry sump tank or similar custom oil container and one of those electric oil pumps that the STS rear turbo guys use on a Vortech. Seems to me it would allow the unit to run pretty cool without the hot engine oil circulating through it, my only concern would be would the oil get warm/hot enough to flow well ? Could you run thinner oil, even non-motor oil ? Thanks .
05-02-2014, 02:37 PM
#637
Platinum Supporting Vendor
There is also a screen in the inlet fitting of the oil feed on the sc in case your engine "dumps" into the charger.
05-06-2014, 08:49 AM
#638
My opinion:
Ditch the 1.8 roller rockers, put on set of factory style 1.7 rockers. Much lighter and easier on the valve-train.
Put a bigger cam in it for sure. Like a 228/236 114.
With IW 8" balancer and a 3.6" s/c pulley on that V2 Si-trim you will be at max impeller speed with a redline of 6,600 rpm. That lower CR of 9:1 might make it tough to hit the power you need for 9s. But, you can make it up with a Yank 3600-4000 stall.
Keep the 3.42 gears. LS9 head gaskets are great choice.
You might need more fuel system: I'd do at least 80# injectors and if that in-tank with BAP doesn't get the job done. Consider adding our single external fuel pump system.
93 octane and a great tuner will make all the difference in the world.
Get a nice drag pack on it and cut some 1.4x 60ft times and should be able to turn some high 9s with enough timing in the tune.
Ditch the 1.8 roller rockers, put on set of factory style 1.7 rockers. Much lighter and easier on the valve-train.
Put a bigger cam in it for sure. Like a 228/236 114.
With IW 8" balancer and a 3.6" s/c pulley on that V2 Si-trim you will be at max impeller speed with a redline of 6,600 rpm. That lower CR of 9:1 might make it tough to hit the power you need for 9s. But, you can make it up with a Yank 3600-4000 stall.
Keep the 3.42 gears. LS9 head gaskets are great choice.
You might need more fuel system: I'd do at least 80# injectors and if that in-tank with BAP doesn't get the job done. Consider adding our single external fuel pump system.
93 octane and a great tuner will make all the difference in the world.
Get a nice drag pack on it and cut some 1.4x 60ft times and should be able to turn some high 9s with enough timing in the tune.
05-06-2014, 01:18 PM
#640
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