[houtan]

Any updates? How is she running?

[Ozzie335i]

She's running better with every change Justin makes. It's been cold and rainy here for the last week and a half, so I am slow to log. I sent Justin a couple of 3rd gear logs and a couple of just driving (1st - 4th then cruising) logs. The problem with 3rd gear pulls is that traction is dodgy. Justin seems to prefer 4th gear, likely for that reason, but that would be very fast. 3rd goes past 100 as it is.

[Ozzie335i]

Originally Posted by snaimpally

Hmm, might have to check MHD out, since you and I have very similar cars and setups.

Its a no brainer snaim, do it and protect your investment. I recall you saying you have a rocking sound system in your ride. I have the Harmon Kardon system, which sounds ok for the car. What it lacks is from the factory is foundation. I bought a JL Lab trunk corner sub (a real sub) from a brother poster here and that put the sound over the top.

[houtan]

Originally Posted by Ozzie335i

She's running better with every change Justin makes. It's been cold and rainy here for the last week and a half, so I am slow to log. I sent Justin a couple of 3rd gear logs and a couple of just driving (1st - 4th then cruising) logs. The problem with 3rd gear pulls is that traction is dodgy. Justin seems to prefer 4th gear, likely for that reason, but that would be very fast. 3rd goes past 100 as it is.

Thanks. Looking forward to seeing logs. I'm with you, 4th gear is way too fast on the street. Even 3rd gear is sketchy.

[aaron_]

4th gear logs lol, let's just do a 7th gear and all go to jail. Then there will be less traffic for others to log :-)

[N55Jamaican]

Originally Posted by Ozzie335i

She's running better with every change Justin makes. It's been cold and rainy here for the last week and a half, so I am slow to log. I sent Justin a couple of 3rd gear logs and a couple of just driving (1st - 4th then cruising) logs. The problem with 3rd gear pulls is that traction is dodgy. Justin seems to prefer 4th gear, likely for that reason, but that would be very fast. 3rd goes past 100 as it is.

GAD DAM son. sounds like a beast needing a release from the gates of hell. Would love to see vid run when you possible can

[Ozzie335i]

Originally Posted by aaron_

4th gear logs lol, let's just do a 7th gear and all go to jail. Then there will be less traffic for others to log :-)

When you are going 90 in third and the rear wheels are fighting for traction, you know you are there. Bring on the boys of the 405.

A buddy at the office that has had a few Vettes over the years said it is the fastest car that he has ever been in. He was driving it, properly.

[Twisted Tuning]

Originally Posted by houtan

Any updates? How is she running?

I literally just sent him an update about 30 minutes ago. So far the car doesn't seem to be having any issues at all.

Originally Posted by Ozzie335i

She's running better with every change Justin makes. It's been cold and rainy here for the last week and a half, so I am slow to log. I sent Justin a couple of 3rd gear logs and a couple of just driving (1st - 4th then cruising) logs. The problem with 3rd gear pulls is that traction is dodgy. Justin seems to prefer 4th gear, likely for that reason, but that would be very fast. 3rd goes past 100 as it is.

Originally Posted by houtan

Thanks. Looking forward to seeing logs. I'm with you, 4th gear is way too fast on the street. Even 3rd gear is sketchy.

Originally Posted by aaron_

4th gear logs lol, let's just do a 7th gear and all go to jail. Then there will be less traffic for others to log :-)

Originally Posted by Ozzie335i

When you are going 90 in third and the rear wheels are fighting for traction, you know you are there. Bring on the boys of the 405.

A buddy at the office that has had a few Vettes over the years said it is the fastest car that he has ever been in. He was driving it, properly.

Trust me guys, i 100% am with you on 4th gear pulls being pretty fast for the street, but think about it, if people are building cars for 3rd gear whats the point? The good thing about e-tunes are that they are at your leisure for the most part, so catching a 4th gear pull every now and again isn't that hard really. I only ask for one or two at most per round of logs.

The main reason for 4th gear, is traction is far better and it produces better logs to adjust off of. 3rd gear can to, when traction isn't an issue. But making power there comes a trade-off.

But yes, trust me , i get it. I have this one spot near my house that i make a loop. and where i do my 4th gear and 3rd into 4th gear logs. same spot every time.

Thats good stuff about what your co-worker said. You must have faith in his driving, haha.

[Twisted Tuning]

Log from Revision 2.....

And link: http://datazap.me/u/twistedtuning/pu....25&tmax=53.69

The Revision i just sent had some changes to Valvetronic and Vanos to shorten spool time. Once he send me logs again, i'll see where we are at. Still on reduced timing btw. And a richer AFR, so more power is to be had without raising boost anymore.

[rich_mane]

^Looks awesome. I'm excited to see the full potential eventually unlocked.

Originally Posted by Ozzie335i

When you are going 90 in third and the rear wheels are fighting for traction, you know you are there. Bring on the boys of the 405.

A buddy at the office that has had a few Vettes over the years said it is the fastest car that he has ever been in. He was driving it, properly.

Damn this statement makes me want the Pure Stage 2 upgrade so much more lol. I can only imagine how much fun that thing is. Glad to see you did it right with the LSD.

I think I'm going to try and convert my AT to a manual before that comes though. I'm so tired of this automatic.

By the way, (off topic I know) but any more info on the subwoofer box you put in the trunk, or how you connected it to the headunit? I have the Harman Kardon audio as well and have been wanting a nice trunk subwoofer for a while but haven't gone through with anything yet.

[aaron_]

Originally Posted by Justin@MHD

Trust me guys, i 100% am with you on 4th gear pulls being pretty fast for the street, but think about it, if people are building cars for 3rd gear whats the point? The good thing about e-tunes are that they are at your leisure for the most part, so catching a 4th gear pull every now and again isn't that hard really. I only ask for one or two at most per round of logs.

The main reason for 4th gear, is traction is far better and it produces better logs to adjust off of. 3rd gear can to, when traction isn't an issue. But making power there comes a trade-off.

But yes, trust me , i get it. I have this one spot near my house that i make a loop. and where i do my 4th gear and 3rd into 4th gear logs. same spot every time.

Thats good stuff about what your co-worker said. You must have faith in his driving, haha.

I have the perfect spot very close to my house even for 4th gear logs, so when you're doing my car will be no problem!!!

[houtan]

Originally Posted by Justin@MHD

Log from Revision 2.....

And link: http://datazap.me/u/twistedtuning/pu....25&tmax=53.69

The Revision i just sent had some changes to Valvetronic and Vanos to shorten spool time. Once he send me logs again, i'll see where we are at. Still on reduced timing btw. And a richer AFR, so more power is to be had without raising boost anymore.

That log looks awesome. Nice timing, nice avg ign. I see pwm is maxed out up top but boost is falling off slightly, any ideas why? I think the ps2 can hold 24 or25 psi at redline.

[bahn]

Originally Posted by Justin@MHD

Log from Revision 2.....

And link: http://datazap.me/u/twistedtuning/pu....25&tmax=53.69

The Revision i just sent had some changes to Valvetronic and Vanos to shorten spool time. Once he send me logs again, i'll see where we are at. Still on reduced timing btw. And a richer AFR, so more power is to be had without raising boost anymore.

Jb4 huh?

[houtan]

Originally Posted by bahn

Jb4 huh?

I am assuming to control PI.

[Twisted Tuning]

Originally Posted by houtan

That log looks awesome. Nice timing, nice avg ign. I see pwm is maxed out up top but boost is falling off slightly, any ideas why? I think the ps2 can hold 24 or25 psi at redline.

thanks, the PWM being maxed out is a JB4 thing. Because i feel the PS2 can make more boost. But Craigs car is also PWG, so beyond a certain point in the upper RPMS the exhaust pressure/flow can overcome the Spring/vac pressure that holds the wastegate since the spring is very soft on the Vac gates. That will make the exhaust flow bypass the turbine thus not creating as much boost.

This is all theory, as im not sure if Pure increased Wastegate spring tension on these or Not, this issue is less apparent on EWG cars.

Originally Posted by bahn

Jb4 huh?

yes, using it for PI

[weehe126]

You have to transfer the stock actuator onto the ps2, so spring rate is stock. And not sure it redline boost is a jb4 problem. I've seen several Jb4 only logs with more than 25psi at redline.

[houtan]

Originally Posted by weehe126

You have to transfer the stock actuator onto the ps2, so spring rate is stock. And not sure it redline boost is a jb4 problem. I've seen several Jb4 only logs with more than 25psi at redline.

I was going to find some links to double check, but you confirmed what I was thinking. There are ps2 pneumatic cars running 25 ish at redline.

Could this car have a small boost leak? Or maybe something else.

[Twisted Tuning]

Originally Posted by houtan

I was going to find some links to double check, but you confirmed what I was thinking. There are ps2 pneumatic cars running 25 ish at redline.

Could this car have a small boost leak? Or maybe something else.

Boost leak is also possible indeed.

[Ozzie335i]

Originally Posted by Justin@MHD

Boost leak is also possible indeed.

Or could it be that I have 7000 rpm boost set to 22 psi? The new revision is in. Meaty in the midrange.

I set the one thing to quiet the start up. My neighbors will appreciate that. It was in the low 40s this AM and she started right up.

[kanovic]

Good stuff man! Car sounds fun. Just sent my details to Justin to start my tuning process!

[houtan]

Originally Posted by Ozzie335i

Or could it be that I have 7000 rpm boost set to 22 psi? The new revision is in. Meaty in the midrange.

I set the one thing to quiet the start up. My neighbors will appreciate that. It was in the low 40s this AM and she started right up.

Maybe, but at 6ish k you have the target at 24. I would say not that big of a deal with boost being a couple psi off if pwm wasn't at 100%. But it is so that's why I was saying maybe something is up, because pa2 can hold more boost than 21.6psi. But just a guess, maybe everything is fine.

[Ozzie335i]

After a cough at 6200 rpms I got a half engine and 2C58 today. Houtan wins the dollar. I'll have my guy look for the boost leak next week. I am betting it is between the charge pipe and the throttle body as with the PI it moves the charge pipe back some.