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Old 02-28-2016, 12:45 AM   #501
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Old 02-28-2016, 01:13 AM   #502
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I want to see your flat shift settings.
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Old 02-28-2016, 01:13 AM   #503
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What is that?
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Old 02-28-2016, 01:15 AM   #504
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I want to see your flat shift settings.
This is what I ran at the track. I wasn't reving high enough for that to shift smoothly though. I planned to shift much higher but shifter early due to having no power. By 3rd I realized something was really wrong and got out of it.

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Old 02-28-2016, 02:45 AM   #505
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What is that?
Ghetto suspension mod Ghetto suspension mod
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Old 02-28-2016, 12:02 PM   #506
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It's actually a professional suspension mod if you count race teams that have tens of millions of dollars in their budgets. It's only a ghetto mod if you are using one on a car with eBay turbos.

Those spring rubbers come in multiple durometers.

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Old 02-28-2016, 12:09 PM   #507
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Also if anyone has an idea to fix the drag-the-ground-problem tonight so I can race tomorrow, I'm listening.
Super job. It works!

What about a fairly broad skid plate to get you through this weekend until you can work on the suspension?
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Old 02-28-2016, 01:41 PM   #508
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Holy cow that thing is moving out!
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Old 02-28-2016, 02:43 PM   #509
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Holy cow that thing is moving out!
That was a 1.9 something 60'. I've run 1.74 60's with the SC. You should see THAT launch!

Added rubber spring things mentioned, and just made some 1/2" spacers to add to the bump stops. I watched the vid I posted in slow motion, you can tell it just bottoms out on the bump stops. So hopefully now the spring will be a bit stiffer/higher, and the bump stops will engauge about 1/2" higher, so with the motion ratio that should be a bit more than 1/2" higher ground clearance on launch ( I dunno what the rear motion ratio is).
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Old 02-28-2016, 02:57 PM   #510
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Don't forget that the rubber spacer will effectively lessen the travel of your springs. They may now go full block before you hit the bumpstops.
Springs going full block can be pretty harsh and cause undesirable effects on the circlips holding the lower perches-> see coilover Bilsteins discussion.

Not sure how helpful a soft-ish durometer rubber space is under these circumstances.
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Old 02-28-2016, 03:08 PM   #511
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Motion ratio is 1.5
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Old 02-28-2016, 03:13 PM   #512
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I did it, it sits higher in the back a bit, maybe an inch? It looks like it's a touch higher than stock, maybe. It was low before probably due to added weight (sound deadening, amp/sub, a/c condenser, turbo, oil pump, etc).

I put 1/2" of spacer on the metal cut on the top, so that should make the bump stops engage a bit earlier, hopefully it will not drag the ground. Gotta test wastegate and set boost, then off to track.
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Old 02-28-2016, 05:47 PM   #513
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Have fun! Can't wait for vids.
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Old 02-28-2016, 06:06 PM   #514
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I wouldnt mind seeing a 60-100mph ish (start at bottom of 3rd) pull on camera so i can time it and judge it against a bunch of other cars i have list of lol.

Would be a good indication of how quick it is.
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Old 02-28-2016, 06:36 PM   #515
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I wouldnt mind seeing a 60-100mph ish (start at bottom of 3rd) pull on camera so i can time it and judge it against a bunch of other cars i have list of lol.

Would be a good indication of how quick it is.
For that kind of power 3rd gear is a matter of tyres, better 4th (dry weather)
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Old 02-28-2016, 07:22 PM   #516
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For that kind of power 3rd gear is a matter of tyres, better 4th (dry weather)
Eh

I don't think you'd want to run bottom of 4th for a 50-100mph pull.

I said third because it's pry best to run through the start mph with as much momentum as possible to get the best time you can to compete against other cars I have in my list.
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Old 02-28-2016, 09:17 PM   #517
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Hitting the bumpstops too hard may shock the car and unload the tires. Some tooooning through practice at home with a gopro mounted in the wheel well may be required to see what is happening back there.
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Old 02-29-2016, 01:17 AM   #518
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3rd too short and 4th the weakest gear on 6sp
Pulls should be in 5th / 1:1
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Old 02-29-2016, 01:22 AM   #519
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So........

Good news, bad news, and more of this.

Good news: Got car fixed enough to race.

Good news: Boost comes to target and holds there vs creep before.

Bad news: Only goes to 32 PSI, have to adjust the bleed hole in the top port to run any higher. :( So less power. :( But still got to race And easy to fix.

Good news: Set a new best time at the track Beat 3 trailered race cars All by over 1/2 a second! Broke 100mph in the 1/8th A nova and Firebird, and something else don't remember.

Bad news: wasn't making full boost till 3rd gear, but there's good news, I improve this a lot on the next pass!

Bad news: Next pass I Broke a MSM axle on my best launch of the night, had to get it towed 30 something miles home....

Good news: Have video of broken axle, and launch that broke axle for your viewing pleasure! And time slips.

Also, looking for a MSM axle if anybody has one, or knows where I can buy one! Seriously, I need one like now. Or two.

All passes were in 70-80*F air, 1/2 tank, laptop, tools, fire extinguisher, etc. But no passenger.




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Old 02-29-2016, 01:28 AM   #520
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Grats
Bench racer math projects mid to high 11's at around 120 miles an hour
Definitely fast. But not quite 500whp fast yet

Cant wait for full tilt run
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