Im just trying to have a discusion to see what they did to improve it, a little background on the platform and possible future improvements. You know put some usefull stuff in here. And exactly my point its an hr not a de so it will run less pressure than the 21psi of the de with the same mods. Hp could be more than the de but same blower spun same speed will make less boost on an hr. If they are spinning it faster, the question of the pulley size, and how much overspeed it is, as well as how long the blower will last at that speed is raised. If its 15k over speed, depending on how much redline it sees it may make great numbers, but it could also blow the charger much sooner. The discusion right now is what the shops thoughts on that are or if it isnt a concern to the customer, maybe its a case of if it blows well just change it out. If that level of speed is safe then that would be usefull info. No one on here likes to have technical discussions aparently, its like everyone is just waiting to hear what some shop does next instead of asking questions posting info and trying to learn something.

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Man....just close the thread already....fuk informing the community on credited shops and professional racers trying to expand the vq platform! Internet penis is getting 2 large for this tiny thread! Google it later because that's what makes everyone knowledgeable now a days anyways.

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Don't do that. Some of us just want to see cool builds. This is a cool build. We can all say whatever, but at the end of the day that car is going to be a ******* animal. A lot of power and the response of a sc has got to be a whole lot of fun.

O&G guess we ain't smart enough down here in Texas for these here builds....


However I vote with Chuck, so in for the final results!

Come on man.. Just add them to your ignore list. Please don't let a troll cost the entire community, we are not responsible for their actions lol

you guys are all taking this the wrong way O&G since you apparently have connections with the shop could you ask them if this is a thing they are still testing out to see what happens, or will they be selling the charger and higher speed pulley? or can that pulley be used fine on a regular stillen charger? and what kind of intercooler mods will they do to support the additional heat?

Other good ones are, if they are over-spinning it is it a matter of vortech underrating the unit, or did they modify it for extra rpms, as well as as what they think the actual redline of their charger is? like can it be spun faster than with the new pulley or will they have it maxed out?

any updates on this thing yet?

It was running when I went by the shop a couple weeks ago. No tuning yet as they were still tweaking things a little.

Edit - I left off the thing sounds beastly

Car only made 2psi of boost...... Na, its still in breakin, Ill see if i can get an update on it 2day

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Overspun the blower and the shop exploded? Dozens of puppies killed in the fire?

You must have seen it on the lcoal news rofl

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What really sucks was the fire spread to the "Orphans and Kittens" event next door. All hands lost.

All the cars are fine though....Right?

^That's what I was thinking

Cars and ALL PARTS are safe, FWWEEE

I just saw this. It is my car. I got the cog pulley idea from the Stillen supercharged guys on this forum. I am running the 3.2" serp pulley that comes with the kit. The rear pulleys were a 1:1 ratio and were changed out for 34T:30T setup and JTran made the idler pulley and got everything to work. Should be spinning the Si impeller around 56K rpms. It made 13+ psi on the SCi impeller at the same rpms, so I think 16+ psi is probable with the Si. Also have a 28T pulley in Ron's toolbox, but we haven't been able to make it work without shredding cog belts. It would spin the blower around 61K rpms, but I don't think it's going to happen. That setup will surely push close to 20 psi, but I'm not in a rush to make that work right now. For extra cooling, we added meth injection.

The car made 266hp w/ boltons and tune. 409hp w/ Stillen SC. 420+hp w/cogs. 450+hp when it blew w/ cogs and Si impeller and quite a bit of belt slip(15 psi @ 6500 rpms and held 15psi to redline).

We'll see how it does in a couple of weeks. I ran a 12.5 @ 114 on street tires with the cog pulleys and SCi impeller. I am a Novice.

All facts. Take them or leave them.

Your car is nasty! Good job

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Also note. The faster we spin the Vortech blower with the Stillen kit, the smaller the HP gains up top, but it gained gobs of TQ throughout the entire rpm range. I think the Stillen piping may not flow well enough at the higher rpms. So every step along the way has been much more noticeable on the street than the peak hp numbers suggest.

That's exactly where you want. I was at the shop a couple weeks ago and man does that thing sound good

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This GT500 at our shop has a similar design like the Stillen setup. It has the plate running coolant between the S/C manifold and lower intake manifold. Difference is, it's a water to air setup w/ a front mount intercooler setup reducing temps drastically and making gobs of whp & wtq. This can be done for the Stillen kit on our platforms with proper JTran modifications! Food for thought!

Pro4jackster I'm your Irish brother w/ the low mount 70mm turbo setup on the built block, 40th 370Z! Glad to see you on the forum!

http://i251.photobucket.com/albums/g...psa2d90d73.jpg

What up man? I come and go on the forums. Usually just read. Sell me your kit when you decide to go LS.

LOL, I would never set a non Nissan motor in my baby! We need to get the rest of those break in miles in on the car, I know your a busy guy though! Tran drives her when he can!

My name is Tran. I can drive her for you. B ^ D

http://www.vortechsuperchargers.com/pdf/si_cmap.pdfMore cooling will help, the vortechs pump a lot of heat once you spin them faster. This is the old SI map and you are getting into the 65% efficiency island.

Also remember JTrans dyno reads lower than even other Mustang dynos, it's a relic, which is why he is switching to a new setup soon. We will all have a dyno jet day so we can compare numbers with all these other cats throwing out "big numbers", but as far as a tuning tool, it still does the job well!

Final Results?

Still breaking it in. I should have some final results by the end of the month.

^hard worker, always on the road.... and I don't think the Z will make it out to some of those rig sites! Business is good down in the great state of Texas!

I have given up on the Stillen Supercharger. It got to the point where we were going to have to redesign most of the original kit to make anymore power (belt routing, charge pipe, relocate MAFs, new air filter and intake pipe, bigger heat exchanger, separate IAT sensor, etc). And since we are already spinning the SI in the red at 56K rpms, I don't want to spend any more money on this setup. I just sold the kit to a local guy and it's getting installed right now.

My motor was finished a couple of months ago, and now has just over 1000 miles on it. We ended up going with 10:1 Arias pistons and Carrillo rods. Ron took apart and cleaned the heads up. So the motor is ready for a lot more than this kit can put out. So it's time for a JTran Motorsports Low-Mount Single Turbo.

Nice decision. What turbo you selecting? I'm running the BP PT6266 Twin Scroll. Same size as JTran put in that last Nismo he built but with a divided housing.

I don't know yet. Johnny and Ron are still talking about it. They are going to pick the turbo. They are slightly more qualified than me to make those decisions. Ha.

You are in good hands with those two. Can't wait to see progress. I'll be in and out a few weekends in June getting some things adjusted on the G.

That makes 3 people now! Congrats! Now you're ready for serious power!

ladies and gentleman of the jury... I CALLED THAT ****!

I like to sit on forums all day and stroke my epenis!

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What is an epenis(real adult by the way)? I don't know the situation with what he wanted but one would think you could have saved him a lot of money if you had guided him to go turbo in the first place instead of placing his hopes on modifing and tuning a kit that wouldn't come close to his power goals.

If a customer came in and told me he wanted 650wheel the last option on the table would have been a stillen kit.

You make a lot of incorrect assumptions. It looks like you are making stuff up as you go.

like i said i don't know the deal between you and them, maybe its all free and they are paying for in that case whatever, maybe it was financial and you didn't want to jump straight to a new kit right a way, but from the whole this thread it started with "we are going to do 20psi and 600+ with a stillen kit" and usually people have to pay for work like this so i do assume that you asked and payed for 600+ and the stillen kit is not going to do that for you without replacing the entirety of kit except the brackets. Instead of the SI impeller the 928 would have been a better choice, but really without replacing the charger with a v7 and moving the mafs, or redoing the whole piping and intercooler setup there was no way it was ever going to get close.

Lol, let it go, back away.

Unfortunately or fortunately, I KNOW 1slow370, and I know he KNOWS his shít, better than most, so that's why he might come off as a douché to you guys, but he ain't. He's helped me out in person TONS.

alright, alright i quit.