DrJay's Performance rebuild...PART TWO!
 

Closed due to cleaning......

Git er Done !! :twisted:

This is really gonna give some of the bigger SII guys some real thinking to do!!!
So, a 11 second Series I Bonneville whooping Z06's just might become a reality!!!! Minus broken rods or pistons. :D

Your gonna make the CGP guys angry! :lol: Good luck with the build!

I think you're going to run into the problem that your blower is actually going to become a restriction instead of adding power. That little tiny M62 can only flow so much air. I think you're gonna need a bigger blower. Zooomer is putting out 410whp (so a little over 500 crank hp) and his P&P'ed M90 is maxed out. So, your M62 is gonna max out way before that...

Shawn

Closed due to cleaning...

ok, i think i need to come over for a day and learn from these things that your doing. I just got a CAI and i thought i was fast :lol: :roll:

There is a point when droping a pulley size is not going to help you because the M62 is not efficent enough anymore. If that wasn't the case you'd see people with M90's running 2" pulleys and such. Just my .02

One ? - the boss ok'd it? elaborate please?

Anyway you look at it good luck!

I'm assuming his GF, or someone else who has a hand on the $$$ coming and going.

So lets say the supercharger is making 1psi. You would have so small of a pulley on it so that it would make that 1psi, that if you took the blower off the difference in air temperature would make up for the 1psi boost you lost, you follow? A 2" pulley is going to create so much heat because it brings the blower out of its efficiency range, that it would be more worthwile to run a larger pulley due to the temperature of the outlet air. This is why you don't see very many people running smaller than a 2.55" pulley on an M90, because if you go smaller than that, it isn't going to be efficient enough to make more power. Yeah, you could throw a 2.35" pulley on it, and spin it faster, and yeah, it would move more air, but the air is so hot that you are actually losing power because you are having to pull timing to make up for the huge amounts of heat the blower is producing. To make the kind of power you are hoping to make, you're gonna have to go with a bigger blower. Personally, I would put a M112 on it, but an M90 would at least be better than the M62. Or just go with a different power adder altogether.

Shawn

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haha any time buddy

Your M62 is essentially at it's peak already. dropping to a 2.0 will run it hot i bet.

The m90 doesn't need nearly as many revs as the M62 for equal boost, because it's longer. If they dropped to a 2" pulley they'd pop rods out of every which way.

LOL got ya, I think we have all been there once or twice!

you also have to worry about the SC spinning itself to death and dumping crap into your engine.

Sounds like a good plan. GET A GOOD SHOP!!! The IC that BonEvil is working on...that would help your situation out alot. Maybe allow you to drop to the smaller pulley.

Screw the M112. GET A TURBO!

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im workin on the IC guys....Christmas just drained my credit cards along with the new brakes on the Buick the new exhaust on the Buick and the rockers for the Bonne.....JEEZ I need funds!....so im thinking the prototype will hopefully be finished by february...I still got alot of work to do...Im still thinking of pulling the heads and LIM and gettin the whole thing P&Ped and getting SBC valvesprings (when I get the rockers) thats gonna cost a few bucks, and then I still gotta find a good CNC place in town to do my IC plate...then theres fabrication to do on all the stuff to make it fit. SOOOO hurry up and wait!!!

let's try to get it right the first 3 times

:twisted:

or in under a year

:twisted:

but in all seriousness, best of luck, i hope you run into far fewer problems than your last run. maybe a 10 pager this time instead of a 20 pager?

oh, and what about that tranny? I don't remember everything you had done (tranny-wise), but are you comfortable with that kind of power?

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I have MSN IM but I haven't used it in like a year or so. I'd have to download it again, but if you wanna chat I can do that...

However, what I would do in your situation, is browse the classifieds on club gp. Look for someone selling a used M90. You can usually find them in the neighborhood of $1-200. Then you would just have to fab up an adapter plate or something, and you would be making a lot more power. I don't think I would be messing around with the M62. Its just gonna be holding you back. Not only that, but the gain you will get from just switching blowers will be pretty big by itself.

Shawn

Some of those Garret Units in Fiero's (maybe some GP's) are very stout. However, just be good to this one and it should last...

Garret??? They make turbo's... You're talking about a transmission right? Maybe you mean the Getrag? If so, they put that in a LOT of cars (thats what my Calais has), but those are all manuals. If thats not what you're talking about, don't mind me, I'm just confused.

Shawn

Closed due to cleaning...