Z32 Headwork

[Broke_as_****]

Jim Wolf's "Mild" cams are stock cams with reground lobes, they run about $500-600. However you do have to turn in your old cams to them or they charge an additional $400. Provided you have a reasonably good set of stock valve springs you should be able to pop these right in.

Jim Wolfs 400 series (the 400 and the 400+ cams) are ~$970 and are new cores ground to two different specs, the 400+ slightly more agressive. These cams require stiffer valve springs.

They also carry the 500 series cam that is designed for maximum top end power.

Z1 doesn't produce any cams, they sell Jim Wolf cams.

A NA Z32 with a set of test pipes and a cat-back generally doesn't see any performance gains from a set of headers. Given how much of a pain in the ass they would be to install go ahead and skip this one.

Extrude honing invovles straping the piece to a machine that takes abrasive jelly (think jello with sand in it) and forces it through the intake manifold at high speed. This allows the entire interior to be polished up without cutting the manifold apart and has the added benefit of replicating the flow of air through the manifold for the most efficient path. There is some variations in how it is done but thats the general idea.

[k3smostwanted]

Originally Posted by Broke_as_****

Jim Wolf's "Mild" cams are stock cams with reground lobes, they run about $500-600. However you do have to turn in your old cams to them or they charge an additional $400. Provided you have a reasonably good set of stock valve springs you should be able to pop these right in.

Jim Wolfs 400 series (the 400 and the 400+ cams) are ~$970 and are new cores ground to two different specs, the 400+ slightly more agressive. These cams require stiffer valve springs.

They also carry the 500 series cam that is designed for maximum top end power.

Z1 doesn't produce any cams, they sell Jim Wolf cams.

A NA Z32 with a set of test pipes and a cat-back generally doesn't see any performance gains from a set of headers. Given how much of a pain in the ass they would be to install go ahead and skip this one.

Extrude honing invovles straping the piece to a machine that takes abrasive jelly (think jello with sand in it) and forces it through the intake manifold at high speed. This allows the entire interior to be polished up without cutting the manifold apart and has the added benefit of replicating the flow of air through the manifold for the most efficient path. There is some variations in how it is done but thats the general idea.

thanks for the info on extrude honing...had no idea.

yes, looking back at a few sites. some of them have misguided information.

i was actually confused on the situation with the JWT cams.

Z1 calls the reground cams the 100 series while other sites like Ztuner.com call the Mild series the reground stock cams and the Wild ones the 400 or 500. maybe i should email them and tell them they might want to further explain. i remember another website being even more confusing....

http://ztuner.com/engine.php

anyways, broke...i already tried to explain to him everything you just said. he thinks he is gonna see more HP than a stock TT and i tried to explain to him that he isnt gonna see those kind of numbers but i think he is on a mission to prove me wrong. check it out here:

http://www.automotiveforums.com/vbul...d.php?t=520627

BTW: i swore Z1 was using an outside business in their area to reground the stock cams and they were selling them for $400 or so. i was looking at getting a set and saving a little money.

[Broke_as_****]

Originally Posted by k3smostwanted

anyways, broke...i already tried to explain to him everything you just said. he thinks he is gonna see more HP than a stock TT and i tried to explain to him that he isnt gonna see those kind of numbers but i think he is on a mission to prove me wrong. check it out here:

http://www.automotiveforums.com/vbul...d.php?t=520627

Meh, whatever creams his twinkie.

BTW: i swore Z1 was using an outside business in their area to reground the stock cams and they were selling them for $400 or so. i was looking at getting a set and saving a little money.

They might have been or they might have something in the works. I know they were going to start expanding their services once they moved into their new facility and that was sometime last year. Something to keep your eye on I guess.

[MclarenF1]

Originally Posted by k3smostwanted

extrude hone tends to be expensive, i dont know the process either but everything that i have seen that has been extrude honed is very pricey. plus at the power level your at, the performance gain will not be noticed.

port and polish will benefit nicely on a Twin Turbo...i really wish you would upgrade the turbos now instead if pulling the motor to do it later. the benefit would be awesome. the stock turbos just arent gonna be worthy of all of these other upgrades. 5 angle valve job and no upgraded turbos...

Stillen Intercoolers are very nice...i am buying a set for my Z as they are supposedly one of the best offered. thats ignorance about those ducts, the ducts are like $250 from Stillen.

and i agree, the better performance shops are the ones that arent that deep into the import scene or whatever. like race shops...they may be pricey but the work is above par.

good luck man...whats going on with the bottom end? if you upgrade the bottom end i will be even more upset if you dont upgrade the turbos.

I was definitely getting the vibe that a few of you think I should push him to do a turbo upgrade. Trust me, I have tried as hard as I can to talk my uncle into it, but he's not up for it (yet). I think a lot of the problem is that he had already invested in a set of rebuilt stock units by the time I convinced him to start doing some upgrades. After investing all that money in rebuilt stockers, he can't bring himself to spend even more on brand new upgraded units. If it were MY car, though, you better believe I would either: (A) have the stock units reworked for greater cfm capability, or (B) pony up the cash for some sport 500s. You're probably right when you say that the day will come when I'll have to install some upgraded units for him. Then again, maybe not. If it ever does happen, at least he'll have an engine that's willing and ready.

The bottom end is probably going to be a pretty basic rebuild. I might see about having some balance work done or look into some different rings, but otherwise there won't be anything really special about it. I'd like to punch it out to 3.2 or so liters, but that's just too expensive.

Contrary to how my previous posts may sound, this really hasn't been a high budget build. We're getting great deals on the machine work just because of a working relationship that some of my family has with the shop. I've been working on getting the most possible for my uncle by utilizing available resources, but I'm also trying hard to convince him that it's worth stretching a bit so he can end up with something really unique. Generally speaking, he isn't really a hot- rodder, so my arguments don't always get the greatest reception. Since it is his car, though, I don't push too hard.

On the other hand, the best part of this is all of the experience I'm getting from tearing down his car and rebuilding it. I can't help but feel like the idea of converting my own car is becoming more and more tempting. If I was to go out and find a turbo in as nice a shape as my NA, it would cost me more than the four or so thousand it would take to convert mine myself, right? Hmmmmm.

Then again, maybe I'm getting way ahead of myself. I better just concentrate on seeing if my uncle's Z will actually RUN when I'm done with it.

[k3smostwanted]

Originally Posted by MclarenF1

I was definitely getting the vibe that a few of you think I should push him to do a turbo upgrade. Trust me, I have tried as hard as I can to talk my uncle into it, but he's not up for it (yet). I think a lot of the problem is that he had already invested in a set of rebuilt stock units by the time I convinced him to start doing some upgrades. After investing all that money in rebuilt stockers, he can't bring himself to spend even more on brand new upgraded units. If it were MY car, though, you better believe I would either: (A) have the stock units reworked for greater cfm capability, or (B) pony up the cash for some sport 500s. You're probably right when you say that the day will come when I'll have to install some upgraded units for him. Then again, maybe not. If it ever does happen, at least he'll have an engine that's willing and ready.

The bottom end is probably going to be a pretty basic rebuild. I might see about having some balance work done or look into some different rings, but otherwise there won't be anything really special about it. I'd like to punch it out to 3.2 or so liters, but that's just too expensive.

Contrary to how my previous posts may sound, this really hasn't been a high budget build. We're getting great deals on the machine work just because of a working relationship that some of my family has with the shop. I've been working on getting the most possible for my uncle by utilizing available resources, but I'm also trying hard to convince him that it's worth stretching a bit so he can end up with something really unique. Generally speaking, he isn't really a hot- rodder, so my arguments don't always get the greatest reception. Since it is his car, though, I don't push too hard.

On the other hand, the best part of this is all of the experience I'm getting from tearing down his car and rebuilding it. I can't help but feel like the idea of converting my own car is becoming more and more tempting. If I was to go out and find a turbo in as nice a shape as my NA, it would cost me more than the four or so thousand it would take to convert mine myself, right? Hmmmmm.

Then again, maybe I'm getting way ahead of myself. I better just concentrate on seeing if my uncle's Z will actually RUN when I'm done with it.

the way i see it...if you have a clean N/A that you dont think you can get the quality of from another TT, i would highly suggest the swap. it isnt all that difficult, it doesnt take any ridiculously special tools, and people all over the net are ready and willing to help. there are so many write-ups and people that visit the net often that what you cant do, you will be able to do after a little research.

as for your uncle...maybe he could put the rebuilt units on Ebay and see what he gets for them. or you could just set his boost at about 18psi and let him destroy them fast. also, rebuilt units are very rarely done absolutely perfect so they do not tend to last that long.

i would also consider Wiseco Pistons in the bottom end. for the extra machine work and the rather cheap price of the pistons it is a well worth upgrade. i would not rebuild a bottom end without them. these can withstand so much more abuse and detonation than the stock cast units. making for a much stronger engine. you could also have the stock units cryogenically treated for further strength. ARP rod bolts, Main studs, and head bolts also can be very useful and not that expensive...rod bolts being the most important piece.

just a few more ideas. good luck

[sanzoneb]

[quote=Broke_as_****]Meh, whatever creams his twinkie.



Take it easy buddy stop getting off by thinking about that shit. I dont know whats so hard to understand my dad will only pay for the shit that i mentioned. He wont convert it. So go a head be the big man and talk shit online.

[DeleriousZ]

lmao relax dude....

[k3smostwanted]

Originally Posted by sanzoneb

Take it easy buddy stop getting off by thinking about that shit. I dont know whats so hard to understand my dad will only pay for the shit that i mentioned. He wont convert it. So go a head be the big man and talk shit online.

its all good man, it was a figure of speech. good luck with your project...i hope you get the extra power your looking for.

[MclarenF1]

It may seem odd to bring this thread back up since it is starting to get a little old, but I just wanted to thank those who provided advice regarding the thread’s original question. I just got my uncle's car finished up, and, after a few initial teething problems, it's running great. We did end up using forged internals, but for the most part it's running on mostly stock parameters. I really tried to push the aftermarket turbo idea, but I never managed to get through to him. If my uncle decides to go further with this thing later, though, it's more than ready.

As far as the car's current performance goes, my butt-o-meter says we might be touching the high three hundred hp range with appropriate boost, or MAYBE 400, but I have my doubts. I do know this: we had a friend get out his 2000 C5 Corvette automatic convertible, and did a brief run from 70- 130ish (this was on a VERY desolate road). I set the boost at @14 psi, and from the get go, we put a pretty good walking on him. I'd bet it will run with a regular 6 speed C5 coupe without a problem, but I have my doubts about the car being in C5 Z06 territory. Everyone else who has ridden in the car thinks otherwise, so maybe I'm wrong. The 14psi setting is cheating anyway, though. I told my uncle that, unless he makes a few more modifications to the fuel system, he should keep it under ten psi. Perhaps I'm being too cautious, but I figure it's better to be safe than sorry.

Anyway, I'll stop rambling now. Thanks again for everyone's advice.

[Broke_as_****]

His fuel injectors and pump should be enough for 14 psi.

http://itsgotturbo.com/

Click "Dynos" then click on the individuals names for their upgrade lists and dyno charts and such. There is quite a few Z owners running 14-15 psi with no problems.

[ExTrEmEDrIfT]

hey k3 where do u have to travel to get your engine work done? your not talking about ultimate Z are you ? thats a long ways from you , i heard the owner of that shop is selling is TT beauty for about 10 - 12k its pushing somewhere in the neighborhood of 600hp too

[k3smostwanted]

Originally Posted by ExTrEmEDrIfT

hey k3 where do u have to travel to get your engine work done? your not talking about ultimate Z are you ? thats a long ways from you , i heard the owner of that shop is selling is TT beauty for about 10 - 12k its pushing somewhere in the neighborhood of 600hp too

i think i am having Kyle at Import Parts Pro build my motor and fork out the extra for shipping. he is supposed to be the best and his prices are more than reasonable. i may call UltimateZ but as of right now, Kyle is where my money is at.

i have never seen the owner's car nor do i know anything about it. that is a very cheap asking price for a Z shop's owner's 600hp Z32TT.

[MclarenF1]

Originally Posted by Broke_as_****

His fuel injectors and pump should be enough for 14 psi.

http://itsgotturbo.com/

Click "Dynos" then click on the individuals names for their upgrade lists and dyno charts and such. There is quite a few Z owners running 14-15 psi with no problems.

Thanks for the info and the link. I believe what I have seen, but I am still wary. It just seems like he should at least get some stand alone engine management before venturing into the higher boost levels- especially with stock turbos and injectors. I considered telling him to go ahead and go for higher boost if he wants, but if that motor melts down I'll never hear the end of it. I also figure that, since he's more than happy with the engine's current performance, I might as well tell him to be reserved with the turbo settings and play it safe.

When I finally get a turbo Z of my own, though, I will definitely keep your suggestion in mind. I would be willing to take greater risks with my own car. (All in the name of science, of course.)

Then again, if you, along with any of the other members here, feel that 14 psi really is a low-risk, LONG TERM option, feel free to provide more input. I might put some more research into the idea and consider it further.

[MclarenF1]

Extremedrift: I was just curious about the motor in your sig. Is that a real photograph? If so, what is it from? Maybe Hyundai freight ship?

[Broke_as_****]

http://www.bath.ac.uk/~ccsshb/12cyl/