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Forced Induction - V8 V8 Supercharger, turbo, nitrous discussions

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Old 09-14-2010, 08:28 PM   #1
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3.0 pulley and stock bottom end, go boom?

I'm looking to maybe go a smidge faster so I'd like to pulley down a size or to. I'm still on the 6 rib so I was also looking to have the pulley gator gripped to help with slippage. I already have a 3.0 that I got a while back but I think that it may make to much boost. The 3.4, that I run now, maxes out at 10.6. I'd like to "try" a 3.2 but I would have to buy that set-up and see if it works. If it doesn't and slips worse case I'm out a few hundred, not a big deal. But I don't know enough about this stuff to make an educated desicion. I run meth so that should help out with keeping things as safe as possible. Thanks for the help guys. And any places to get pulleys would be helpful.

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Old 09-14-2010, 09:19 PM   #2
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I'm looking to maybe go a smidge faster so I'd like to pulley down a size or to. I'm still on the 6 rib so I was also looking to have the pulley gator gripped to help with slippage. I already have a 3.0 that I got a while back but I think that it may make to much boost. The 3.4, that I run now, maxes out at 10.8. I'd like to "try" a 3.2 but I would have to buy that set-up and see if it works. If it doesn't and slips worse case I'm out a few hundred, not a big deal. But I don't know enough about this stuff to make an educated desicion. I run meth so that should help out with keeping things as safe as possible. Thanks for the help guys. And any places to get pulleys would be helpful.
is someone shooting for 9's?
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Old 09-14-2010, 09:45 PM   #3
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is someone shooting for 9's?

Just trying to keep with the the Ray's and the Don's of the world, that's all.
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Old 09-14-2010, 09:47 PM   #4
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Are you running an oxygenated race fuel already?
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Old 09-14-2010, 09:59 PM   #5
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I would go nitrous route before I started shooting for more boost to make power. If you just did a 100 shot it would get you where you are wanting I believe and still be safe. Boost is great until someone doesnt have an engine built for boost and KABOOM.
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Old 09-14-2010, 10:03 PM   #6
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I would go nitrous route before I started shooting for more boost to make power. If you just did a 100 shot it would get you where you are wanting I believe and still be safe. Boost is great until someone doesnt have an engine built for boost and KABOOM.
Really? a 100 shot of nitrous is safer then running more boost? I always thought nitrous is something that wasn't safe if your motor isn't built. Shed your knowledge on this one bc I would love to put a nitrous kit on my car if its safer then running a smaller pulley and more aggressive tune.... I have a stock LS3 with a vortech SC running 8lbs of boost making 540rwhp. What would a 100 shot do for me and what would I have to do to do it? thanks... OH also installing a meth injection soon too. would that counteract at all?
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Old 09-14-2010, 10:09 PM   #7
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Old 09-14-2010, 10:16 PM   #8
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Are you running an oxygenated race fuel already?


Thats a big negative on the o2 race fuel. Just 93 and meth. I think I would just suck it up and go 8 rib with the 3.2 before the nos.
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Old 09-14-2010, 10:30 PM   #9
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You can go more ribs with all of that associated cost. Or, you can add a blower cam when you pulley down. A blower cam will allow for more power on similar or even less boost. I think you're on the edge of spending a bunch of money on the blower drive if you want to just add boost. That and higher IAT's. At some point, meth isn't a cure all for high IAT's either.
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Old 09-14-2010, 10:41 PM   #10
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You can go more ribs with all of that associated cost. Or, you can add a blower cam when you pulley down. A blower cam will allow for more power on similar or even less boost. I think you're on the edge of spending a bunch of money on the blower drive if you want to just add boost. That and higher IAT's. At some point, meth isn't a cure all for high IAT's either.

I hear you on the money issue. The 8 rib is around $1100. And Ted already has one that he brought in for me. I'd have to get a 3.2 pulley and belt, bc the 3.0 is gonna be to much. So there's that cost, and then shipping it all over the place, then some time with Ted on the dyno and thats never cheap, but def worth it. And even then there is no 100% gurantee that it will be slip proof. I gotta figure at 1/3 the cost of the 8 rib thats my better option and less hassel for me. Thank you for the advice. I haven't done much research on the L99 blower cams yet. I will on Friday when I am at Jannetty's harrassing Ted all day. I never even thought about the high IAT's. That would def be counter productive.

Good thing is that its only sept and I have some time. I need a shot with the current set-up and gd air. It has to go faster than it did in August with a 2900 DA. Thanks to all you guys for the help. I appreciate not knowing much about this stuff!
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Old 09-14-2010, 11:06 PM   #11
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SuperchargedSS, I'm running the 3.0 pulley with the 8 rib pulley system. I'm not having any problem with slippage. I'm only running 10.5 boost with this set up. If you remember I'm running meth/water also. The new pulley system came with a crank pulley that was a bit smaller than the factory so I had to go from the 3.2 on down to the 3.0 to compensate. The car is running good but I don't run it at the strip. I believe you may be getting more out of your car than I am mine and certainly more practice. I'm concidering a mild cam and new lifters next year. I'm just starting to do a little research on cams. I'd have Ted do the work but I think I'll look for some body a little closer to KY. Keep us up to date.
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Old 09-14-2010, 11:14 PM   #12
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Currently we top at 10.6 psi and thats with the 3.4 and meth. And its only at the 10.6 mark for a couple blinks at 6300 rpms. I think I'd feel ok going to about 13, not sure if the car is going to feel the same way. I'd really like the 3.2 but at what costs. If the IAT's get that much higher than the gains will be negated by the risks. And on minute I'm like, whats the point, how fast does it need to be and the on the other hand, which is 99% of the time, is like stop being a bitch and do something. But then again the car runs so well and can be daily driven and then go 10.5's or better with the change of he tires. I'm sure most of you guys think the same way. Gd thing this is the only source of strees in my life. I think Ted is going to kill me with all my emails all day long.

I think I need to talk to Ted on Fri, discuss the cam option, 8 rib, and the most we want to push this thing and feel comfortable. I have another rental next Fri, Sept 17, and being up here in New England the am air should be prime for some kick ass runs. But I know Ted would like to see a stock bottom end L99 get into the 9's and we are starting to make some progress.
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Old 09-15-2010, 12:47 AM   #13
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I got my last pulley and belt from Janetty pretty quick. I would hit them up.
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Old 09-15-2010, 03:39 AM   #14
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If there is a 2010 Camaro class for a stock long block in the LSX shootout you should be in it because you might be able to go home with a LSX block and that would handle all your boost needs.
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Old 09-15-2010, 06:11 AM   #15
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I got my last pulley and belt from Janetty pretty quick. I would hit them up.


Uncle teds shop is only ten minutes away. Normally I would just have him get it but if I end up needing it o think it would be better to have one drop shipped.
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Old 09-15-2010, 06:36 AM   #16
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If there is a 2010 Camaro class for a stock long block in the LSX shootout you should be in it because you might be able to go home with a LSX block and that would handle all your boost needs.
Not sure about all the classes but Ted had already approached me about it. Unfortunately this isn't the best time of the year for me otherwise I'd be in!
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Old 09-15-2010, 08:22 AM   #17
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Man... your running mid 10's on a L99 .. I'd be very very happy with that... I'd just leave things the way they are ... don't push the envelope anymore!
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Old 09-15-2010, 11:26 AM   #18
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I have a 05 GTO in with a 3" pulley on a stock bottom end and no slip with the "Gator Grip" machined into it, and has been living well for the past 2 years. Here are some pics:



Idler for 6 or 8 rib:


Power steering & alt pulley in 6 or 8 rib:


On a 2010:




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Old 09-15-2010, 02:53 PM   #19
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I hear you on the money issue. The 8 rib is around $1100. And Ted already has one that he brought in for me. I'd have to get a 3.2 pulley and belt, bc the 3.0 is gonna be to much. So there's that cost, and then shipping it all over the place, then some time with Ted on the dyno and thats never cheap, but def worth it. And even then there is no 100% gurantee that it will be slip proof. I gotta figure at 1/3 the cost of the 8 rib thats my better option and less hassel for me. Thank you for the advice. I haven't done much research on the L99 blower cams yet. I will on Friday when I am at Jannetty's harrassing Ted all day. I never even thought about the high IAT's. That would def be counter productive.

Good thing is that its only sept and I have some time. I need a shot with the current set-up and gd air. It has to go faster than it did in August with a 2900 DA. Thanks to all you guys for the help. I appreciate not knowing much about this stuff!
It's kind of scary when you think of the potential of your car. With good weather and DA, you can probably shave off 2-3 tenths (conservatively).

Then, if you go the blower cam route, you could potentially be looking at high 9's. That would be crazy for a stock bottom end.
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Old 09-15-2010, 05:05 PM   #20
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Old 09-15-2010, 05:21 PM   #21
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I wouldn't look into pushing more boost if you plan on staying with your stock cam/heads for awhile. IMO you are going to go over your supercharger's efficiency. As mentioned before, the harder you make your supercharger work, the higher your IAT's get. You will be pushing more boost in, but at much higher temps, and you would just be creating more cylinder pressure for the same amount of hp. Too much cylinder pressure = broken parts.

I would say get the stock injectors resized and MAYBE a boost-a-pump (IIRC they can be rebuilt to up to 6x lbs/hour) and run an e85 tune at the track. E85 does WONDERS for FI. Generally speaking, it would be good for ~15% gain in hp

If you set on running more boost, I'd swap out to 7/8 headers, cam, and run a 3.4 pulley

a cheapo 160* thermostat might get you a few extra ponies.... especially if it helps keep the engine bay cooler and those iat's down

I'd also look more into yoru 60'.... i think it could go faster than that... what suspension mods do you have and have you tried adjusting tire pressure?

With bias plies, the trick I always used is run the most PSI as possible, to keep tire growth on the top end as low as possible. and since you have an automatic, you want to dead hook off the line, no wheel spin. I'd start off at ~15 psi and work your way up in 2 psi increments... launching as high as your converter will let you.

/internet racer theories
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Old 09-15-2010, 05:45 PM   #22
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I have been thrashing my G8 with cam/headers and a TVS2300 with a 2.9" pulley all summer. Still using the stock pulleys and the belt hasn't slipped or broken or anything during many HPDEs, a few trips to the drag strip, and 10,000+ highway miles.

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Old 09-15-2010, 06:02 PM   #23
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Cheapest thing is to wait till december and run at ATCO.
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Old 09-15-2010, 08:13 PM   #24
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[QUOTE=SC2150;2332550]I have a 05 GTO in with a 3" pulley on a stock bottom end and no slip with the "Gator Grip" machined into it, and has been living well for the past 2 years. Here are some pics:



How do you machine in the tiny groves? Have you seen much of a difference in slipage when you do this?

How much do you charge to do an eforce pulley?

Do you use the belt in the kit or upgrade to a different belt?
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Old 09-16-2010, 12:40 AM   #25
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