Now that I have my suspension buttoned up and paint being fixed on the 28th, I want to get some power under my belt. I am going to do the full top swap with the L67 heads but thinking I want to do a Gen V instead of a Gen III M90. Worth it or not worth it?

I am going to have my trans possibly rebuilt by this guy in Wisconsin to handle the power:

http://www.harmonperformancetransmissions.com/4T65E.html

Seemed like he had good prices and he is part of another forum I am part.

 

Pretty simple- did you ever plan to buy a ported blower in the future for more power? If so, I'd try finding a G5 off the bat because the performance of a stock G5 is similar to a ported G3- and it will save you shipping and new gaskets and such later on.

One thing to keep in mind with a G5 is you're going to need some kind of adapter for the TB since they came with electronic throttle bodies- so you can either get an adapter to run the (smaller) L67 TB or to run a N* or LS1 TB.

 

I was going to run the North* and get the adapter from ZZP. I was thinking G5 because its the same as a G3 ported and I don't have to take it to get ported. I just have to make sure I have the L32 LIM right or mod a L67 LIM to fit. I have been looking on the Grandprix forum and waiting on a few guys for parts. I am thinking I am going to have to build my trans up too. What stage from the above link do you think is most worth it. I was thinking the middle stage should be fine considering I am not getting TOO crazy. YET lol

Another guy I am talking to about it actually bought his car with the G5 installed. He has now added a intercooler and sent me a few pix:

http://www1.picturepush.com/photo/a/...ine-Done-1.jpg

http://www1.picturepush.com/photo/a/...HE-Mounted.jpg

Pretty much what I am wanting to do. I am gonna hold off on the intercooler for right now though.

 

Are you really set on that Harmon place? I've never heard of them before- ZZP and tripleedge are more common names with our trannys.

 

i would definitely recommend a genV blower....to optimize your setup you *should* run the l32 intake, but it isnt 100% necessary...remember, the genV is more efficient, and you will need to run .2(ish) larger pulley than you would with a genIII you arent going to notice a HUGE difference in power between the two until you get into the highre power levels, then the difference will be pretty noticeable....i picked up 48WHP going from tog headers and a genIII to ZZP headers and a genV...i had a 2.7 pulley on my genIII and only a 3.0 on my genV

 

Only reason I was going to go with him was because he is close. I could save a TON on shipping. The guys on this MNclubGP.com forum all say he does great work so I guess we will see.

I just found this on Ebay. Makes me wonder if I should just get the whole thing lol:

http://cgi.ebay.com/ebaymotors/ws/eB...K%3AMEWAX%3AIT

 

Gen V is more efficient. that is why people swap to it. remember, its sits on a l32 series III engine, l67s are series II.

 

2k isnt a bad price for an engine with the tranny, and everything else youll need.

 

If you do, you can run the blower in the back of the stock on behalf of the Gen V swap and prevent TB L67. I will run the North Star-TB so that the match on behalf of the North Star V Channel tuberculosis. This is the easiest way. If you are running stock GenV swap Polaris is a problem the way to go.

 

Depending on how far you are taking a supercharged setup, you have the potential to make a good bit more power with a top swap than you so with a full L67/L32 swap. The higher compression of the N/A bottom end really compensates for these inefficient roots style blowers.