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Quote:
Originally Posted by 1979-930 View Post
Could you provide the backspacing and with or without spacers for this look. Nailed It!
+1 on the backspacing inquiry. I have a set of formula43 18x9 and 11 that need a little massage and I'd like to max out as Brian RarelyL8. 4.5 lip and 6.5 inner barrel sits out just a hair for my liking (no spacer). And hard numbers out there greatly appreciated.

Lyall, car looks bad ass. Any idea how your wheels were spec'd out? I have a chance to start from scratch here. Thanks Tom
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82 930 Pearl White 3.3 964 cams, K27 HF, Kokeln, fuel enriched, IA fuel head mod, wur mod, crankfire, 2X plug, Aase worked heads. 1bar, GHL, zork, 23/33 bars, low, loud

Last edited by slyguy; 12-26-2017 at 06:31 PM..
Old 12-26-2017, 06:28 PM
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Derrick & Slyguy,

I ordered these back in 2002 through Fordahl Motorsports and Jim Fikse came out to measure. They were 9 & 11 to start with and I have no clue what the offset is. Two years later we grew the fronts to 9.5" by increasing the inner rim to 6.5" so I could run 275/40 Hoosiers.

I'll try to get some measurements first of the year. Feel free to PM me a reminder
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82 930, 2500lbs 430hp, Black | 85 944 Pro44 / ITS / PCA4 racer, Black
87 Carrera, stock, GP White
03 Boxster S, GP White
73 De Tomaso Pantera, Grabber Blue
Old 12-27-2017, 08:08 AM
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Much appreciated. And would like to see a shot of the pantera if that's not asking to much!!! One of my all time favorites.
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82 930 Pearl White 3.3 964 cams, K27 HF, Kokeln, fuel enriched, IA fuel head mod, wur mod, crankfire, 2X plug, Aase worked heads. 1bar, GHL, zork, 23/33 bars, low, loud
Old 12-27-2017, 05:35 PM
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Quote:
Originally Posted by slyguy View Post
Much appreciated. And would like to see a shot of the pantera if that's not asking to much!!! One of my all time favorites.
Same here - never even ridden in one, but have always loved the looks of them.
Old 12-27-2017, 06:07 PM
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yeah, me too...
and some pics of the hot Ford V8 in it. I think it was the 351 Cleveland.
Old 12-27-2017, 06:58 PM
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I can do that

Stock appearing with Hall Pantera Street Brute motor, close to 380hp. Hall Pantera adjustable coilovers, cooling upgrade including GT4 hood vents, PBR brake upgrade as well. Hall did a full restoration in 2002.



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Lyall
82 930, 2500lbs 430hp, Black | 85 944 Pro44 / ITS / PCA4 racer, Black
87 Carrera, stock, GP White
03 Boxster S, GP White
73 De Tomaso Pantera, Grabber Blue
Old 12-28-2017, 01:26 PM
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That is spectacular. Great looking car.
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82 930 Pearl White 3.3 964 cams, K27 HF, Kokeln, fuel enriched, IA fuel head mod, wur mod, crankfire, 2X plug, Aase worked heads. 1bar, GHL, zork, 23/33 bars, low, loud
Old 12-28-2017, 04:54 PM
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Quote:
Originally Posted by Fast82930 View Post
I can do that

Stock appearing with Hall Pantera Street Brute motor, close to 380hp. Hall Pantera adjustable coilovers, cooling upgrade including GT4 hood vents, PBR brake upgrade as well. Hall did a full restoration in 2002.



sweet car... ive been think of a pantera lately, a pre-L preferably.

how does it compare to a 911 driving wise? back in the day in the GR 3 class they were arch enemies. chris meek ran an early push button in the uk and would swapped wins with a local 2.7RS as i recall. today in the historic races in europe, fully sorted out pantera's seems to be dominating especially on the faster tracks.
Old 12-29-2017, 01:16 AM
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I've always liked the looks of the Pantera.

That being said, I had the opportunity to ride in a stock '72 model, for an extended 1 hour run, driven by a Porsche 911 race driver (the owner).
Sure it was reasonably quick, right there with a stock 930, brakes were adequate but nothing special. Straight line stability, even at triple digits was superb.

Now we come to cornering....sighhh....understeer was extreme and constant. Seemingly, the only way to get that thing to go around a corner, was to treat it like an open wheel racer and pitch it into the corner at the apex. The driver referred to the car as a "roller skate". Seeing how the driver understood throttle lift over steer, we did not let that ugliness happen while trying to corner the beast.

I'm sure with more modern, higher quality suspension parts and brake stuff, one could easily rectify those traits.

Although, given enough discretionary funds..I'd still buy one in a heart beat :}

Mark

Last edited by full quack; 12-29-2017 at 09:53 AM..
Old 12-29-2017, 09:50 AM
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Quote:
I'd like to max out as Brian RarelyL8. 4.5 lip and 6.5 inner barrel sits out just a hair for my liking (no spacer).
The front spacing on my wheels was maxed out to give the absolute widest stance possible while completely fitting under the flares with no rubbing under any circumstances. The backspacing on the wheels was also maximized. All these measurements were taken knowing that the tires being used would have a section width equal to wheel width, so the sidewall would be flush with the wheel lip. Using more narrow wheels would require less backspacing as the tire section width begins to exceed the wheel width and will rub the inner suspension alignment bolts. The wheel would need to be reduced in the same amount in the front spacing as it is in the backspacing so the tire remains centered in the wheel well.
Here are a few pictures of the wheels I modified for the task.








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'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
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Old 12-30-2017, 02:29 PM
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Brian, any idea what the values for your outer lip, inner barrel and backspacing when you were all finished. I'll get to the measurements but its 0 deg outside, you've fit them exactly as I would like for my car
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Old 12-30-2017, 02:57 PM
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Thank you for sharing your insight on the Pantera

Sorry for the hijack fellows.
Old 12-30-2017, 06:26 PM
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How close to eccentric thread?

Currently test fitting 18 x 12.250" wide. How close to the eccentric thread are you guys? If your to close will it rub on the inner body well when it cambers in? Thanks!





Old 01-01-2018, 05:59 AM
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I cut the stud off flush with the nut.
If the rim is in direct interference you can run a few mm spacing as the 2 points will never move.
If the tire sidewall is in direct interference you have to allow more room for tire flex while cornering.
With my current setup the tire sidewall is flush with the rim so the rim can be so close to the nut that only a paint stick will fit between. No rubbing at all. With my old setup (12x15 Fuchs with 345/35-15) the tire sidewall stuck out past the rim bead and would hit the nut during hard cornering. I had to back it off with spacers a few extra mm to alleviate that problem. The passenger's side is the biggest problem, the oil lines also were relocated as the tire hit them as well.
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'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
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Old 01-01-2018, 08:01 AM
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Quote:
Originally Posted by RarlyL8 View Post
I cut the stud off flush with the nut.
If the rim is in direct interference you can run a few mm spacing as the 2 points will never move.
If the tire sidewall is in direct interference you have to allow more room for tire flex while cornering.
With my current setup the tire sidewall is flush with the rim so the rim can be so close to the nut that only a paint stick will fit between. No rubbing at all. With my old setup (12x15 Fuchs with 345/35-15) the tire sidewall stuck out past the rim bead and would hit the nut during hard cornering. I had to back it off with spacers a few extra mm to alleviate that problem. The passenger's side is the biggest problem, the oil lines also were relocated as the tire hit them as well.
Ok, thank you for confirming. Do you have any pics of your setup showing just how close for reference? I see you tried the elephant high clearance oil lines but they didn't fit. Why, fitting bends? I was looking at those but have the rear ducts as well. Thanks!
Old 01-01-2018, 12:56 PM
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Hey Brian,can you elaborate on repositioning your oil lines on the passanger side?I have a set of 3 piece 17"12s bbs fuchs that i will be using a 5mm spacer for the dr-side that just clears that nut&bolt,but have not come up with clearing my oil lines.Thanks

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Old 01-01-2018, 04:39 PM
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930 is in a deep sleep right now as the temps dip into single digit making picture taking a bit of a challenge.
The oil lines are moved down. Thee is a hold down clamp that secures these lines in the wheel well, you remove that and flip it upside down which holds the line farther back and down in the well.
The Elephant Racing lines didn't fit in any way shape or form on the slant nose due to the brake duct area being different than the standard body. Anybody looking for these lines give me a holler as I cannot use them.
I have written specs somewhere from when I modded the wheels, I will look for that info. I do recall that the measurement outside lip to outside lip was 13.25" because that was the target I was looking for. The total space available in my wheel wells is 13.5" and the 345/35-15's used it all up. I wanted to back it off just a hair to insure no rubbing anywhere under any conditions.
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'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
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Old 01-02-2018, 03:42 AM
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Great weather yesterday for garage rearranging (sunny and 70). Took the 930 for a 30 minute spring wake up drive and all is well. 930 sat up on the lift all winter and I need to get busy to make the 944 2018 race ready.

Before the cruise I pulled the wheels to measure backspacing for those who were interested. No spacers on rear, front camber is -3 and rear is -2 which helps keep things tucked in nicely.

6 1/16" backspacing for the 9.5" x 17" fronts

6 3/16" backspacing for the 11" x 17" rears

OT warning...

Like most cars from the analog era, massive understeer was dialed in to save the car from incompetent (most) drivers... Easy to neutralize Pantera handling with stiffer spring rates/shocks/sways and wider rubber like the factory did for the Group 3/4/5 race cars.

Group 3's ran 8"/10" x 15" with 225/50 and 285/50 P7s

Group 4/5 10"/13" x 15" with 285/40R15 and 345/35R15 P7's

I decided to stay with the as delivered 7"/8" x 15" and run 205/60 and 255/60 BFG T/A's.

Would love to move the rears to the front and get some rare 10x15's but the going rate is $1500/ea for that size...
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82 930, 2500lbs 430hp, Black | 85 944 Pro44 / ITS / PCA4 racer, Black
87 Carrera, stock, GP White
03 Boxster S, GP White
73 De Tomaso Pantera, Grabber Blue
Old 03-13-2018, 10:54 AM
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there seems to be a huge demand for 10x15 pantera campy's. you think there is a market for them if i get some made up? I was thinking of making some but minimum order would be 20 pairs. probably $1500-1650 a pair for 10x15s dont hold me on this though!

i recall there where 3 versions. early and mid year (campy) and late with deeper ribbing tecnomagesio.
Old 03-13-2018, 12:52 PM
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^^^ Thank You!
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Old 03-13-2018, 01:00 PM
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