Cobra jet cams?

[pinero61]

Good to hear, same here.

The car is a dog out the hole, unfortunately. But, once it gets up to around 4,500, it takes off. Between shifts I drop to 6-6,500, so it's staying in peak torque and pulls hard. I managed to make it out to the track, but we kept bottoming out and hard bogging on the launch. Even with 2 second 60's, we're still cutting 12.0's @ 118.

Current plan is to drop to a 26" tire, install the newly released 4.11's, correct the rear camber, and switch to a viking dual adjustable damper in the rear. This should help with bottoming out, and get the gearing we need to trap in the top of fourth. That'll drop redline in fourth from 152 to 127mph. I figure if I can trap close to 125 with a 1.5 or better 60', she should run tens.

Fortunately, there's no off season for our track. So, we should find out shortly.

I'll also be deleting the cats and switching from 93 to E98.

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[Dominant1]

Cool getting her dialed in is half the fun!!!!

 

[pinero61]

[ame]

 

[pinero61]

This was early on in tuning. That hiccup at tip in has been sorted, but it's a decent watch regardless.

[ame]

 

[pinero61]

Got the 4.11's installed and broken in. Huge improvement in low/mid range power, and mph to gear ratio is more or less back to where it was stock. I don't have to drive in lower gears anymore to keep RPM up for torque availability. Power under 5k feels about the same as a stock car or better, with power ramping quickly past that.

I also installed BMR's camber correction arms, and lifted the rear suspension 1/2" to gain some compression travel and make room for my new tires. I got a set of 335/30/19 NT05's to throw under the back. I didn't want that wide of a tire, but it was the only fitment available in that tire to give me the OD I needed. I dropped an inch off of the tire OD to go along with the 4.11's to give me an effective ratio around 4.30. With a 26" radial, that should put me at 128 mph at redline in 4th. I want to trap in the low-mid 120's, so this should be ideal. I measured everything out last night, and I should have no issue fitting the 335's.

 

[WhiteyDog]

Got the 4.11's installed and broken in. Huge improvement in low/mid range power, and mph to gear ratio is more or less back to where it was stock. I don't have to drive in lower gears anymore to keep RPM up for torque availability. Power under 5k feels about the same as a stock car or better, with power ramping quickly past that.

I also installed BMR's camber correction arms, and lifted the rear suspension 1/2" to gain some compression travel and make room for my new tires. I got a set of 335/30/19 NT05's to throw under the back. I didn't want that wide of a tire, but it was the only fitment available in that tire to give me the OD I needed. I dropped an inch off of the tire OD to go along with the 4.11's to give me an effective ratio around 4.30. With a 26" radial, that should put me at 128 mph at redline in 4th. I want to trap in the low-mid 120's, so this should be ideal. I measured everything out last night, and I should have no issue fitting the 335's.

Good stuff, man. And 335's???? Holy Sh*t you're driving a blacktop roller!!!

 

[pinero61]

Overkill, but it was my only viable option. Nobody had the r888's in stock, and my rear tires were shot.

 

[V8EATR]

Updates? Ever make it back to the track or a dyno jet?

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