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cahouston

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Well don't fret. My best was 11.2x @ 125 mph with my 17 manual GT. Passenger seat in. 91 octane tune but using 100 octane race gas. Just added 4 degrees globally so around 28.5 total. I think a smaller rear tire & better clutch will get me a 10.9x. Current tires are 28" x 11.5" rear.

OP: congrats!
I happened to have 17x9 wheels with 26" tall bias ply tires from my last car that mounted up nicely. Bias ply front tires shaved 10lbs per wheel versus the radial skinnies I had on the fronts. Front wheel/tire combo is 26lbs are rears are around 42lbs (wheels are just some old chrome bullets). The shorter wheel height helps as long as you have enough tire to hook.

I had my best run with cold tire pressure at 14.5psi
 
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cahouston

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Enjoy! Great job. Just remember the chase never ends well so you may want to decide when enough is enough.
 
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cahouston

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Enjoy! Great job. Just remember the chase never ends well so you may want to decide when enough is enough.
Thanks. Yeah, our local 1/4 mile strip closes for good at the end of March and I don't street race so I won't have a ton of motivation to continue down the performance mod path. I'm happy with the current power. I have a few minor chassis mods planned but overall, I just plan to enjoy the car and rack up those smiles per mile.
 

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Is the 30.5 timing a request from Lund or is that normal on the e85r tune.
 
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cahouston

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Is the 30.5 timing a request from Lund or is that normal on the e85r tune.
Tuner from Lund said they target 30* on an N/A e85 race tune.
 

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How do the stock half shafts hold up on a e85 tuned car?
 
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cahouston

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How do the stock half shafts hold up on a e85 tuned car?
I've heard stories of them breaking near stock power and holding up for a while so it can vary. From what I have read and seen, they hold up better (like many things) if you don't wheel hop and if you run a rear tire that can soften the hit on the launch like a bias ply. I run bis ply front and rear tires at the track. The autos seem to break more due to the driver side tapering down a bit. I only have 5 passes on the e85 tune (10 track passes total on the car, 9 on bias ply rear tire) and haven't really gotten into it on the street much on the Nitto 555r2 daily tires from a dig.
 

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Big negative DA it looks like. Always great to run in those conditions. Awesome times. The 60ft is great!!
 

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How do the stock half shafts hold up on a e85 tuned car?
This past spring, car was tuned by Lund for E85. I normally run an NT05 out back, but borrowed a set of slicks to use a few times, at the track this summer. Launching that hot, sticky slick, at the line, made a HUGE difference. But in the back of my head, I was worried about hooking up too much and snap shafts. They held up just fine. Granted, I held back a tiny bit knowing that I didn’t want to take a flatbed tow home that day. Lol
 

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How do the stock half shafts hold up on a e85 tuned car?
Last racing season I upgraded the drivers side axle to the GT350 axle(It’s thicker)….made 51 1/4 mile passes with zero issues. Ran a best of 11.18 at 126mph. I’m tuned on E85. For the up coming season, I just upgraded to the G-Force Renegade axle’s ($1800) so I should never have to worry about them again.
I think you can get away with running stock axles for awhile, but the more passes you make the risk of breaking 1 will increase.
 

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Have 18 pp1 with cradle lock outs and vertical supports.Thats what works for me.Run 11.30s with drag pack mickeys and race alot at the track for last 2 years.Wheel hop will break the axle.I have an automatic trans.
 
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cahouston

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Well, I said farewell to our only local 1/4 mile track yesterday. It closes for good at the end of March and closest 1/4 mile track after that will be 4 hours each way away.

Conditions were abnormal for Feb here. 70-76 degrees F with 90-98% humidity so DA was 1300 to 1750+ through the day. It was warm.

I still managed 11.08 @ 126, 11.14 @ 125, 11.14 @ 125, and 11.17 @ 125.

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Best to best only a tenth dropoff for several thousand DA difference - I'll take that !
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