Reminds me of yours MM

 

Lookin' good!

 

Thanks guys. I think the chargespeed side cowls and paint match door handles made the car. I really like how it's coming together.

Here's the Shine Diffuser:

 

Clean looking ride! Lookn' forward to seeing what it puts down to

 

My cog-pulley experiment is giving me a little grief. My first cog belt only lasted about 150 miles (hard miles). I just installed my second belt, and I'll do my best to take it a little easier until the new idler is built and installed.






As long as I roll into the throttle and shift early, it holds up fine. But it did a lot of damage launching from a stop and shifting at 7000+ rpms. The template is at the machine shop now. I ordered 2 more belts just to be ready in case I shred another one.

 

What fun is that?!? Babying it to try and not shred a belt...

 

I don't usually quote images, but...
*splooges on screen*

 

It's very difficult!! That's why I went ahead and ordered two more. When I get back from work this time the new idler should go on.

 

Gosh...that looks like your belt is too tight...the cog belt isn't supposed to be uber tight; when it heats up it get tighter naturally...I usually leave some slack on my cog belt...

 

I agree. I'd like to loosen it a little more, but that is as low as I can adjust the idler. Any lower and it hits the engine. The shiny edge that is visible on the pulley is where all my problems came from. The smaller idler pulley should give me more room to fine tune everything. This was all pieced together from the Vortech parts bin, so it a lot of trial and error.

Question: Do you have to adjust your idler pulley to replace your cog belt, or is it set up loose enough to just slip it on?

I got my new belt on without moving anything. Just got a full wrap on the S/C pulley. Then I could only get it about halfway on the J/S pulley. So I bumped the starter, and it pulled itself into place. Kinda like how you get your bike chain back on as a kid.

 

Well, I don't have a Stillen kit, I have a Vortech kit for a Vq35de, so its different, and the cog belt geometry is different...but I do have to adjust/take off my cog idler to install my cog belt...

If I'm thinking of you cog idler geometry properly (your idler is under the cog pulleys, whereas my setup has the idler on top of the cog pulleys) if you get a slighlty looser cog belt that may solve your problems...

 

A new belt is a great idea, but the only come in 5 Tooth increments. That's close to an inch and a half difference. I'm considering jumping down to a 28 Tooth pulley on the S/C. That would take me from 56K to 60K on the SCi, and give me a little more room for adjustment. That's more power than I want to make right now.... I'll figure something out in the next couple of weeks.

 

The new idler pulley is built. Test fit tomorrow. Then, it'll be anodized and installed for the final tune.





JTran Studios will have the program to cut these pulleys in case anyone needs to buy one later on.

 

How do you like the Turbosmart dual port BPV? I'm potentially looking into one for my Stillen SC kit myself.

 

I don't think it is anything you will even notice. I have just read that the standard bypass valve should be replaced with a better one (Vortech recommends theirs) when running over 10 psi or when using cog pulleys. Probably due to the extra volume of air that needs somewhere to go when off the throttle at high rpms. The reason I went with the 25mm turbosmart is because it plumbs in the same as the standard bpv. No flanges or nipples to weld on. I can barely hear it venting to atmosphere at high-rpms (4000+) under no load. Sounds like a fan blowing air. You really can't even tell its there. Just throw one on if you ever decide to up your blower rpms.

I'm sure there are more reasons to run one, but I'm learning as I go.

 

You said nipple.

Be home tomorrow 14th. Need to find time so I can see your car!

 

Thanks for the info. I may just hold on for now; maybe something better will be recommended for that Stillen bpv replacement.

 

I try to sneak it in every now and then...

It'll be at JTran until the 15th. I'd like to go to Royal Purple Raceway on Friday. I'll PM you if we're nipple going.

 

The new idler pulley is on and the cog setup is making 13 psi at redline. The JTran guys beat on the car for a couple of days and so far the belt is holding up. The final dyno tune pulled about 10 more peak HP out of the car. Johnny worked on a few of the drivability notes I gave him, and the car feels great. I'm going to call it quits right here for a little while and have some fun with it. If everything holds together until this winter, I'd like to step up to the SI impeller and a smaller S/C pulley. Johnny said I have room for another 50 +/- HP before I max out the injectors or MAFs. So, I'm thinking that is about all I'm going to get out of Stillens V-3 Vortech Supercharger without making some design changes.

The kit has turned out exactly as I wanted. The only changes I've made to the "off-the-shelf" tuner kit are: methanol injection and a pulley swap. I am a very happy JTran Studios customer. They even ate the R&D time on this whole cog pulley idea, and I have no idea why. Only charged me for the standard pulley swap time. They have been great since day one.

 

Glad you have everything worked out. I'm headed down there today myself.