Benton

Thanks a ton, guys. The suspension is double adjustable Koni 3012's at all corners with custom mounts, 1000 pound springs up front and 750 in the rear. Rear swaybar is stock with Ott drop links and poly bushings (should be sufficient... we will see), front sway bar is a Weltmeister with poly bushings and reinforced mounts. The engine is stock right now except for adjustable FPR, new injectors, catch tank, new rod bearings, solid mounts, and accusump.

The rear tires are actually only 295's, as that is what came on the wheels (Kinesis K28R). I plan on running these tires while I'm still sorting the car out, then switching to R-compounds, most likely 305's or 315's in the rear.

As far as what series, I plan on running NASA GTS, PCA on occasion, and maybe others like the AV8SS (still needs a few things to meet AV8SS rules like fuel cell and fire nozzles, which I plan to do at a later date).

It's a bit of a pain to get out of, but that was the best solution as far as the roll cage and having room for my helmet. I thought about a bar going from the front of the roof to the driver's left shoulder on the main hoop, but that would have been right beside my head and I couldn't get it to fit like I wanted it. One downside is that with this setup, I can't upgrade to a seat with wings for my head.

Black Sea RD

Hi Mark,

Great progress on your track beast! Great attention to detail throughout the build, it will be a stunner when done and on the track. Keep us posted on the progress.

By the way I have 275x17s at the front and 315X17s at the rear. They feel really good on the track. Planning on going to 18s soon. I would say 315s at the rear for you!

How did you reinforce the front sway bar mounts? Pics please!

Cheers,
Constantine

MGW-Fla

Very impressive, can't wait to see your final art work! Those K28Rs are an impressive looking wheel too. Once you have it ready you have to plan on coming down to race it at our two Shark events at the Daytona & Sebring PCA races each year! We need more 928 racers to root for!

mark kibort

a few things.

are you going to do anything for the front fenders for flaring? keep in mind, the biggest weak link with the 928 as a race car is the small 275s up front. 305s fit with 10" rims and only about .5" of flaring up front. dont know how do do this, but anderson had kind of moved the entire fender out to keep the stockish lines. the rear flares are going to be blended in more?

interior paint looks great. like the color!!

that front air dam may be an issue. anderson has his made from wood, and i dont know if it is that low. it could be. however, there are turns where it drags on the ground. (ie corkscrew, laguna) something to think about as you dont want to rip your nose off if you compress on a tight turn.
I like the design. i think i may have to copy it, but maybe using CF and not quite so low, as i still use mine as a street car to a certain extent.

Thanks for the update. looks great!

by the way, start lobbying with AV8SS about using a stock 928 fuel tank. it is just as safe as the Supercup cars of years past, as it is a colapsable plastic tank, as the GT3 cup cars had a design like this in the factory race cars! many racing organizations believe it is save. maybe you can get that changed so you dont have to have a fuel cell. many of the american cars need it do to their dangerous fuel tank designs.

Mk

Benton

Thanks for the concerns, Mark. The rear fenders are deceiving; they are blended in much better than it appears because it was tough to get a reverse curve at the top of the flare perfectly blended (hence the need for bondo), so some of the sharp lines (and the black epoxy) make the flare look a little more obvious than they really are. Check out the view from the front looking back at the flare and it gives you a little better idea of how they look.

I was concerned about front ground clearance as well, but I made the front air dam a whole inch higher than the AV8SS minimum. If it becomes an issue, I'll just make the dropped areas shorter. The splitter has braces that attach it to the main structure for strength.

As far as front tires, I rolled the lip and flared the fronts by about 1/4". I might should have gone further, but I just didn't feel like fooling with it. Before I do anything, I will have to replace the inner halves on these wheels, as the fronts are only 8" wide I believe. Until I replace the inner halves, I will probably run 255's or 265's (if I can squeeeeze them on the wheels, I know, I know, too big, but I see people run 305's on 10" wheels which is the same 2" wider, so it can be done in a pinch) on the fronts and 305's on the rears.

Thanks for telling me about the stock tank, as I really knew nothing about it. That makes me feel safer now, until I (if ever) replace the stock tank for a cell.

Benton

Thanks a bunch, Constantine. I got the idea for the front bracing from Carl at 928M. Go to the 928 motorsports website, and somewhere on there is a simple write-up. All you need is some square tubing and a welder.

DK

Looking awesome!

MK is correct on the fronts - you will probably need more width up front - EVENTUALLY (depends on track..) - looking awesome for out-of-the-box. Springs are a tad too hard for the bumpiness of the tracks I run, but might be the ticket for your tracks - I don't know that - just speculating - you can always soften.

Re: low splitter - there is only one corkscrew - if it hits, it hits, just 'deal'. Unless of course you are a local running that track every second weekend ... but I don't want to mention any names...

Hope to hear more!

P.S.
Please tell me/all at what point you should have just bought my car and modified to suit!!!!!!

DK

1slo928

I love the car I have a 79 I want to turn into a track car. Did you just weld up the sunroof? on the front fenders did you tig in alluminum or just fiberglass in the turn signal? Are you going to run the 85-86 intake or a Carbonfiber simmilar to Mark Andersons? Did you make the Dash yourself? Are you running the 86.5 brakes or the larger GTS? Have you done any strenthining up front or is it alowed or nessesary? Are you going to run ABS? Are you using porsche dual disk single disk or aftermarked performance clutch? Can I cut my stock shifter down and did you cut yours? Did you need to modify the inner fender on the rear for tire clearance or just spacers to push them further out? I read that 928 motors did'nt like long term high RPM's is this tru and is there something that needs to be done to flow more oil Larger chamfer on rods better radius on crank. Which block and heads are the best to modifiy? Has any one heard of using larger valves in the 16v heads and if so what must be done to pistons ie. noched dished?

Thank's Chris

1slo928

I saw you were using smaller light are you going to make the openning smaller too? I was thinking It might be a good Idea to runn you engine air intake thru the light holes that way you could use larger intake tube More Air More Fuel More power!

Chris

Mike Simard

Hmm...We need to get one of those engine donation threads going!

I have a friend who went through a couple of nice splitter designs including CF but wound up making one out of steel sheet because they would always suffer damage. There's something to be said for being able to stand on a splitter that's so ugly you don't worry about damaging it.

hinchcliffe

Hey, if you make the AV8SS race at Watkins I can probably grab a few guys and help you as pit crew. Keep me in mind if you make it up here.

JEC_31

Wow man - that's 14 heavy questions each worthy of it's own in-depth thread, and many of them have in the past (and will in the future) generated conflicting "In My Opinion..." discussions.

I would recommend spending some time with Search Function...

gersar928

Nice job: I have recently started on turning my 78 into a track car, I can appreciate the hours of work and $$$ that have gone into what shows up in the pics. Gerry

1slo928

There is so much Information on rennlist it's hard to dig thru it all sorry for repeating things that have already been discused I just was trying to find out what he had done on his car.

Chris

BC

This makes me want to turn one of my cars into a track car even more.

I especially like what you did with the S4 bumper.