Supercharger Pully question
 

Ok so I'm sure I've posted this before but I can't find it lol I'm looking to drop Pully sizes I was looking at a zzp 3.4 they say I need a down pipe is it needed for real tho? I have a cat back exhaust and CAI do I need to do the rockers coils and colder plugs and wires? Also do iI need a new belt for the Pully? Any advise would be great help :)

Also what should normal KR be so I know what be at after the swap :)

You need all the supporting mods necessary to give you 0 KR. Each car is different so you have to scan it to find out. My stock GTP with only a u-bend delete had 4° KR about 5000 rpm before I tuned that out.

For a 3.4 setup I'd do headers, 1.9 rockers, colderplugs and tstat, and get it tuned. This way you know you are safe. Headers may seem like overkill, but they will really free up your exhaust flow.

If I'm doing headers and a ubend should i do a cat delete? And are performance coils needed?

Keep the ignition coils and wires stock. I know people with 400-500hp turbo cars still on stock coils and wires with no issues. Cat Delete is up to you, it would depend on the emissions testing where you are.

Also, the downpipe from the headers will eliminate the u-bend so you only do one not both.

Thanks for the info what do headers with downpipe cost? Like from zzp and other sites? Also same question about the rockers

Headers can range from about $200-800 depending on what you get. A lot of people go the cheap route with ebay headers and have good luck.

Not sure on the rockers...I think $300. Its been a while since I bought mine. Check ZZP for pricing.

if you go the ebay route for headers, stay away from the obx. these are copies of the pacesetter headers. the pacesetter's had fitment issues and these cheap copies will not fit unless you have a welder and pipe bender. the SSAC / Speed Daddy headers are the headers of choice. cost/performance you cant find anything better. ZZP's are prob the best headers out there with the TOG's a close second.

and to answer your original question. the required mods are the minimum requirement. if you want to cut it close and do the minimum to keep the engine safe, it is your car, but it is a risk. If they say you need x and y to run a pulley I say do x,y,and Z! as for Kr, get a scan tool now. learn to use it and then you will see how the car is running now and know changes when mods are added.

Thanks for all the advise guys :) so in prolly looking to spend 1k just for a 30hp gain lol

Pretty much lol. You can look into getting harland sharp rockers there a lot cheaper and with the newer revised set solving the issues they have a very good rocker.

Also 0 kr is what you want.

As stated before I suggest headers over a plog and down pipe, keep stock coils, only wires I suggest are factory or PRJ wires. Factory wires are perfectly fine to use bit PRJ wires look way cooler. PRJ wires are expensive.

Also think about a MPS that way when you decide to drop smaller than a 3.4 it will be easy to do.

Yes with a 3.4 pulley you need a smaller belt.

So are the pacesetter headers any good if u get the zzp package with it? Looking on zzp and headers and rockers will cost about 800

Thanks for all the replies also should I get a zzp 1.0?

My biggest tip with modding is really plan it out first before doing anything major. I just got easy mods for the sake of doing them and rockers were a good example of that. I really wish I went the cam route instead.

In regards to headers, I ordered pacesetters from zzp but they were back ordered for a couple months at the time so I spent a little extra and went with the zzp ones and am extremely happy I did.

What I am saying is lay out on paper your different options and plan out what will work out the best for you. I'd recommend not modding with a cheaper part for the sake of doing it, but saving up until you can afford the best.

The zzp 1.0 is OK, but not the best. That is what I started with and for the $150 it is a nice improvement over stock. However because each car reacts different to mods getting tuning software and learning to do it yourself is a good idea. This can be close to $1000 for hptuners with a wideband though. Its also a TON of work and knowledge you need to do it properly. So its all about how much time, energy, and money you want to invest.

Well I'm looking to mod over time I can't just drop thousands lol that's why I like to get the best cause I don't like replacing lol my stuff that i got isn't the best but it suits my needs my goal is 300hp I don't plan on going any higher then that I figured 3.4 full exhaust rockers CAI 1.0 would get me pretty close to that but I'm not sure lol thanks for all the info guys really helps alot

300hp at the crank maybe but the setup your saying wont get you 300whp

Can I get 300whp without doing the cam?

You'll be close with out a cam if you throw a full size intercooler on there with a small pulley on the supercharger. 3.0" or smaller is what you'd need along with Rockers, headers, throttle body, etc

Yes if you do what lw57912 said only thing he is forgetting is you will need a ported genV as well. Expect right at 300whp with a very good tune. And with that it will be very close on stock cam and stock heads. A good intercooler is key to making it.

Well there goes my new rims and drag radials Lmao thanks for all the info guys :)

Another thought, the more power you add, the less time you will have until a transmission failure.

Yes this is very true that's why I was going to stop at 300 I figured the tranny could handle that for awhile I plan to get a built tranny around income tax time so u don't think it will fail in the next 4-5 months do u

Anything is possible, save for a rebuild as its pretty much guaranteed to go at some point with more power.

Also deciding if I want to drop 1k for these mods or buy a junker and store my monte for the winter lol everything will come in time but I got a ways to go to hit my goal of 300 whp