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Supercharging a v6

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Old Sep 27, 2005 | 01:28 AM
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Default Supercharging a v6

my brother bought a 99 vert v6 for a really good price. i told him he would want a v8 etc but he just wanted a cruiser for now b/c all the v8 verts were really expensive around here. anyways now he has the mod bug and wants to get gears,stall, exhaust, supercharger etc, which would be cool and all but I told him just put the money and towards a ls1 camaro.

anyone think its worth modding a v6, er for the sleeper factor? i actually found a 99 vert exactly like his for 8k but its across the country.

what do you guys think? insurance cost isnt a issue, as he is 24 and a clean record. i wouldnt mind modding the v6 and seeing what it does. he has the same trans and rearend as my Z i think. also is the motor really similiar to the grand national 3.8, i read somewhere it can handle boost really well?
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Old Sep 27, 2005 | 09:02 AM
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Default boost

look up tiago on the board he has prefabbed turbo kits in his garage for a v6 I believe. They do handle boost decently and I tuned one of his v6 and it made over 400 easily on a dynojet stock motor just motron 60's and walboro fuel pump.....everything else was stock.........

Originally Posted by JustAnIlluzion
my brother bought a 99 vert v6 for a really good price. i told him he would want a v8 etc but he just wanted a cruiser for now b/c all the v8 verts were really expensive around here. anyways now he has the mod bug and wants to get gears,stall, exhaust, supercharger etc, which would be cool and all but I told him just put the money and towards a ls1 camaro.

anyone think its worth modding a v6, er for the sleeper factor? i actually found a 99 vert exactly like his for 8k but its across the country.

what do you guys think? insurance cost isnt a issue, as he is 24 and a clean record. i wouldnt mind modding the v6 and seeing what it does. he has the same trans and rearend as my Z i think. also is the motor really similiar to the grand national 3.8, i read somewhere it can handle boost really well?
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Old Sep 27, 2005 | 10:58 AM
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I would definately fab up a junkyard turbo for that baby. They have a bunch more room than the V8 guys, might even be able to turn the exaust manifolds backwards. That would make it a really simple project.

CMC
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Old Sep 27, 2005 | 01:09 PM
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3.8's with blower go mid to low 13's... maybe a high 12. You will spend like 5-8K modding it to go as fast as a Vert with a converter.
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Old Sep 27, 2005 | 02:16 PM
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If he is right and the engine can handle boost well then it would be bad *** to have a fast v6. But i dont think they are as boost friendly as he thinks. The GN engines are but i think the new v6's suck. GL


John
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Old Sep 27, 2005 | 02:22 PM
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I dont know Tiago has done some research on these engines dont think they are that different maybe he will chime in on this. I will not say anything out of lack of knowlegde of these motors. I just know the one v6 I did tune put down good power.


Originally Posted by 99SS-T
If he is right and the engine can handle boost well then it would be bad *** to have a fast v6. But i dont think they are as boost friendly as he thinks. The GN engines are but i think the new v6's suck. GL


John
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Old Sep 27, 2005 | 02:28 PM
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There are some blown cars on www.fullthrottlev6.com.
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Old Sep 27, 2005 | 04:06 PM
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The 3.8 is pretty stout. I sprayed mine to a 13.2, other's have gotten in the 12's on spray. I took off the nitrous and ran a Powerdyne blower on it for a while, and ran a 13.6 with that setup. The engine was all stock. I had mid-length headers, 3" exhaust, and 24lb injectors. Now that hptuners is available for the v6, it would be even easier to get it right. There is a certain coolness factor. But for the money I was spending, for me it was better to make the jump to the LS1 and go from there.
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Old Sep 28, 2005 | 11:23 AM
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If I may be so bold as to plug www.fullthrottlev6.com - there is a good slice of that contingent running FI setups on L36's. Some of them hang out here occasionally, but if you really want to know whats up with L36 FI then I would go there. I do not agree that it would take 5-8k to get it done, either.

With all due respect, these guys know V8s, but when it comes to 36s and 67s..I'd talk to someone else if you want something beyond conjecture.
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Old Sep 28, 2005 | 12:33 PM
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Did it to my 96. Was fun, but nothing like the LS1.
Blown V6
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Old Sep 28, 2005 | 02:30 PM
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They are based on the GN motor (I think) but definitely don't have the same bulletproof internals as one...

They can handle boost well though.. Just keep the IATs low (cool it well)
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Old Sep 28, 2005 | 03:07 PM
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Is the rest of the drivetrain strong enough to handle these mods? I always thought they gave V6 cars a weaker drivetrain overall.

Jim
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Old Sep 28, 2005 | 03:37 PM
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trannies can't handle any real power, if you get a clutch that holds, the tranny will let go, seen it numerous times. The manual guys are forced to go auto, the auto guys have to upgrade, same as the v8's. Other then that, the rest of the drivetrain is ok, driveshaft is the same as an Lt1 DS, some get the LS1 aluminum shafts, only other thing is to install a posi in the rear end, other then that it is fine.

Latest little project made 370 rwhp on a mustang dyno and the tranny was toast the first few rips on the street, 3rd gear always eats ****.
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Old Sep 28, 2005 | 04:53 PM
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it would be cheaper to do an LS1/tranny swap. I've seen complete pull-out LS1 setups sell for $2800-3500. Slap a cam and headers on that and you are at 350-370 reliable rwhp.

Tony
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Old Sep 28, 2005 | 10:21 PM
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No doubt Tony is right, but I have also seen the car Tiago is talking about in person (if its the mystic green car I think it is) and it can be done.

I have a theory that one could actually supercharge for around Tony's LS1 conversion number or even less, with an ls1/lt1 headunit, fab up a bracket and and put together some pipes and an IC, then do the obvious fuel and tune upgrades, but even the most successful v6 blower projects I have heard of still have had their reliability issues once in a while. Turbos seem to be both more popular and easier to maintain once you get over the initial install, but they require more custom work at the outset.

Either FI or LS1 swap would ideally require supporting mods like exhaust and suspension, which seems to be where the v6s are most lacking when you really start to make numbers power wise, though luckily they are both easy and relatively cheap.

Bottom line is it is easier to just by a v8 car or even swap a v8 in, but most of us v6 kids like a challange, and are at least somewhat obstinate.
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Old Nov 23, 2005 | 01:29 PM
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Well you are modding a 15.0 car down to ___, so that's the challenge.
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Old Nov 23, 2005 | 05:15 PM
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Originally Posted by Pro Stock John
Well you are modding a 15.0 car down to ___, so that's the challenge.
John, not quite an F-body, but check this out:

www.intense-racing.com

FWD W-body GP turbo V6 3800 - 9.6 @ 143! Of course it is a race-only car. But ZZ Performance has a GP FWD V6 street car in the nines as well. Just an FYI.
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Old Nov 24, 2005 | 06:31 AM
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Can be done, but too much money. I would say its cheaper to swap a LS1 in there than to mod up the V6. I had a 2001 H/C GTP along with other mods, and stuff broke to often. Nice daily cruiser, but deffinantly not a race car.
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Old Nov 24, 2005 | 08:51 AM
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Another point of view...

Ultimately, ANY money we spend modding our cars is a waste of money. I should know; I've wasted a lot of my own. ;-) While it may be "cheaper" to use an LS1-powered car as the basis to get to a target power level, you should read that as "you will waste somewhat less money" by starting with an LS1.

The positive thing about starting with a V6 is the coolness factor. It's the road less travelled. If your brother wants a challenge, and wants something unique, then a V6 buildup may be the ticket. However, if he wants easy, reliable power, then the LS1 is the way to go.
---Jason
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