SixStarCars' 818R - NASA ST3 - SCCA Solo X Prepared Build Thread

[Scargo]

About 3,000 reasons.
We're using a brand new zero mile short block. ...

I'm still not getting it. You say if it goes boom you will put Weisco pistons in it. Those may be less than $500 for you.
You have about $2K invested in the shortblock. You could lose that, big valve heads, cams, time invested, etc.
400WHP is nothing to sneeze at.

[SixStar]

I'm still not getting it. You say if it goes boom you will put Weisco pistons in it. Those may be less than $500 for you.
You have about $2K invested in the shortblock. You could lose that, big valve heads, cams, time invested, etc.
400WHP is nothing to sneeze at.

Cracked lands don't kill a motor. Just smokes a bunch. If they crack they crack. Personally I'm aiming for 300whp which on our turbo is 15-18 psi and is well within the range of the stock pistons.

[SixStar]

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https://www.facebook.com/media/set/?...1784988&type=1

I can't wait to see this in person. Thanks so much for all the hard work!

[JeromeS13]

Cracked lands don't kill a motor. Just smokes a bunch. If they crack they crack. Personally I'm aiming for 300whp which on our turbo is 15-18 psi and is well within the range of the stock pistons.

I'm just saying... If you already have zero mile shortblocks laying around, at least do a drop-in set of upgraded pistons... It may not be the 100% correct way of doing it, but it will save you a lot of headache in the long run. Even at ~ 240 hp, I've seen the stock pistons fail. Depending on the severity, the failed ringland can make a motor eat itself.

[SixStar]

Picked up the heads today. Flat face 0.5mm oversized valves, BC springs and retainers, BC Stage 2 272 cams, combustion matched to 2.5L.... super cool!

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Got a little bit done on the doors also. I won't be able to finish them until Monday when the frame arrives, some clearancing needs done, I didn't consider the thickness of the ABS plastic door panels, should be short work.

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[Rasmus]

Head's look pretty.

Why you putting inner door skins on the R?

[SixStar]

Because the fiberglass is ugly and the car is going to SEMA. If I can find the door pulls those are going on too.

[Bob_n_Cincy]

I didn't consider the thickness of the ABS plastic door panels, should be short work.

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Hi Sixstar,
You may not have a problem. Most of the door skin goes inside the door fiberglass.
Bob
skins.jpg

[SixStar]

Nice! Thanks for that. It's a few weeks off from anyway.

The good news is I got all the parts back from paint today including the FRAME!! The bad news is I didn't get to touch it as I spent a good part of the day tuning cars. I did a few little things, didn't get the real camera out so cell phone pics will have to do.

The frame. As close to the blue on my rally car as I could get with powdercoat.


Got the thermal barrier mounted on the secondary firewall and set that in:


Our iWire harness came today too so of course I just had to mount the ignition panel before I left.


Goals tomorrow: assemble front and read hubs, with the ARP studs and new bearings, modify the steering column, mount the firewall and fuel tank, mount some panels, maybe pedals and boosters... depends.

38 days! Onward!!!

[Bob_n_Cincy]

SixStar
looks great.
is that last picture the padded dash?
Bob

[SixStar]

SixStar
looks great.
is that last picture the padded dash?
Bob

Thanks, no that's just the new plastic ones.

[Frank818]

Is your thermal barrier just thin gold foil glued on something?

[Santiago]

Beautiful frame! Even with the BIW that should look great. I've been toying with frame color ideas, so this is nice to see.

[SixStar]

Is your thermal barrier just thin gold foil glued on something?

I built a separate firewall to keep heat out of the "cabin" and off the fuel tank, then used this - http://www.summitracing.com/parts/dei-010393

[SixStar]

Picture dump - http://imgur.com/a/NE5A9#0

[iWire]

Our iWire harness came today too so of course I just had to mount the ignition panel before I left.

Amazing how well that thing fits in there! Got lucky when I stumbled across it for the prototype in Brando's car.

[SixStar]

Yep! Fits JUST right.

If you go all the way left too it leaves room for stickers and/or gauges.

[iWire]

Yep! Fits JUST right.

If you go all the way left too it leaves room for stickers and/or gauges.

Might be a great spot for an iWire swap # sticker. ;D

[SixStar]

Might be a great spot for an iWire swap # sticker. ;D

YEP! It'll go on RIGHT before the show so it doesn't get wrecked.

[SixStar]

Lunch break!!!

Here are some pictures - http://imgur.com/a/inhrr#0

Ok, back to work!

[SixStar]

Lunch pictures!

http://imgur.com/a/i9O0x#0

[SixStar]

Robert Thorne @ 3R Racing was kind enough to dyno the Red Koni's that came with our 818R #85. Not too surprised at the results, still better than a solid metal rod I suppose. He overlaid his Penske's off his SCCA car and another set from a Solo car for comparison.

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[Frank818]

How do you interpret this chart?

[Scargo]

Why I did not order shocks with the kit.

[SixStar]

How do you interpret this chart?

http://farnorthracing.com/autocross_secrets20.html

[SixStar]

Exciting! Our prototype 818 specific crank pulley came today from Kartboy. She's 2lbs 1.8oz compared to the stock one which is 5lbs 8.1oz and the ATI Super Damper which is 5lbs 13.8oz.

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[Boog]

So adjustments in the double adjustable red shocks aren't changing the rebound damping and only slightly changing the compression damping?

[SixStar]

So adjustments in the double adjustable red shocks aren't changing the rebound damping and only slightly changing the compression damping?

Nailed it. In technical terms those "settings" ain't doin' nuthin'.

[sponaugle]

Cracked lands don't kill a motor. Just smokes a bunch. If they crack they crack. Personally I'm aiming for 300whp which on our turbo is 15-18 psi and is well within the range of the stock pistons.

I actually had one motor where that ended up being not true. The ring land collapsed (as it usually does) but combustion pressure broke the top of the ring land between the first ring and the dish, and the chunk bounced around in the motor. Destroyed the head and the turbo. A few small pieces even made into into another cylinder (thru the intake side I would guess). Those stock Si hypereutectuc pistons suck!

[Scargo]

I have to ask about the pulley. I run a light Perrin and AFAIK I have not had any issues from doing that. That said, some say you need to run a damped pulley... even a "super damper" pulley. No need to dampen the pulses? Needed if there's lots of power?

[SixStar]

I have to ask about the pulley. I run a light Perrin and AFAIK I have not had any issues from doing that. That said, some say you need to run a damped pulley... even a "super damper" pulley. No need to dampen the pulses? Needed if there's lots of power?

You can read up on it and get a few different schools of thought. This is just for SEMA. We run an ATI road racing. Drag racing or street use I'd say a solid is fine.

[Rasmus]

Even though I run a solid pulley on the daily, I'm gonna run a harmonic damper pulley on the 818's motor.


Probably the Fluidampr 531101.

But the solid pulleys got more bling so I can totally see why you'd run that for a SEMA car instead.

[SixStar]

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Lazy picture load. Enjoy!

[Rasmus]

A-arms. So. Shiny. My. Eyes.

[Frank818]

Great job on the control arms.

How long are your front brake flex lines?

[SixStar]

Great job on the control arms.

How long are your front brake flex lines?

The lines pictured are just OEM fit Goodridge lines, I think we might be using the ones that came with our Wilwood brakes though.

[SixStar]

Two big heavy boxes came today. In my excitement I forgot to use the real camera.

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[SixStar]

Lots done, lots too do. Waiting on a ton of parts from companies and vendors which is scary. In the end whatever doesn't show I can replace with parts I have.

Large album from the past few days: http://imgur.com/a/El9Pe#0

[SixStar]

One more important thing to mention, SPC in Longmont helped us find the best upper ball joint mount, here's a picture with the part number. Any Specialty Products Company vendor can help you order the part.

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[SixStar]

After lunch pictures, she's a roller again!! Waiting on a few parts then the motor and trans can go in. Finish up some fluid systems, lay the harness in and hopefully she's RTG.

http://imgur.com/a/bi3sn/all