Alright guys I have about a week before my build engine comes back from the machine shop and I am going to the dark side. My only major decsion left is do I get the hahn turbo kit or the zzp? What are the pros and cons of each kit and if you had the money which one would you go for ? keep in mind I am going full e-85 and the fuel setup with be sized accordingly.

 

zzp all the way. you will make more power...depending on the kit you want.

 

ive heard great things bout both products, id prolly say zzp tho

 

Does anyone have a reason why one kit is better than the other ?

 

20g not as good

 

because its internally gated??

 

https://www.cobaltss.net/forums/dyno...esults-279142/
this shows u wut the s20g is capable of with the hahn kit...wut are ur power goals is the main question for wut size turbo u need

 

I would like to hit 500 on a fully built block ported heads stage 2 cams

 

ya s20g is not for u then

 

ZZP. That standard s20g is not gonna be capable of that kind of power. Now you could change the wheel and exhaust housing and give it more room to grow but if you're gonna have to do that, you might as well go with the bigger turbo to begin with

 

***Edit***

Just disregard everything below this sentence, I didn't realize this was LSJ and it's probably better to just forget about this

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LOL, Go ZZP. I don't know as much as the rest, but from what I understand Hahn is cheaper sure, but it's less effecient and you need to buy all sorts of extra stuff. Like BOV and charge pipes. You need to consider recirc or maf relocate.

Too much, where as the ZZP ZFR is straight on and done. Keep all your current parts and go fast

If you go the other turbo kit from ZZP however well then I'd say go Hahn because that kit is expensive. It will make more power, but depending on what you want the Hahn will give you a bump that will be felt at higher RPMs and it'll still make you happy.

I am speaking out my ass though, because I'm using a K04+ which was $1100 for and extra 40whp on 91 octane so take what I say with a grain

 

has anyone run the stage 2 turbo cams on the lsj before? will the idle be choppy once its tuned or will it sound close to stock?

 

depends on how u make the idle..i have s2 blower cams and i turned the idle up to 800 and its smooth but u can bring it down and it will lope more but it sounds cool when the cams lope

 

I just dont want to give away too much of the fact that the car is fast as hell

 

most ppl take my car for stock..dont see y u cant do the same

 

awesome thanks man