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Unread 05-16-2012, 04:42 PM
Fair!'s Avatar
Fair! Fair! is offline
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Join Date: Jul 2004
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Default Re: Vorshlag $2010 GRM Challenge car - BMW E30 V8

Project Update for May 16, 2012: Long time no update, right?! Well a lot has happened with our $2011 GRM Challenge winner over the past few months and now I am going to try to catch up the build thread with reality. There will be a few update installments as we are still wrapping up some final things this week. Something YOU can potentially be involved with is happening NEXT week! First thing this morning I got my June issue of GRM Magazine and what do I see on page 150? This ad (below left) for the $2012 GRM Challenge...

Left: Page 150 of June 2012 GRM issue. Right: Cover of April 2012 GRM

Not to mention the cover of the April issue, shown above right. That art car look is very photogenic! You can click on either picture above to see a full sized version. Now this April cover was the early artwork that they had before they photoshopped out the Vorshlag banner. Long story - stuff happens and it's mostly our own fault. Kumho deserves the space, as they ponied up the $$ for the event... and for the set of 315/35/18 Kumho V710s we won for taking the $2011 GRM Challenge. Amy and I have had a blast racing these Kuhmo's on our 2011 Mustang in both autocross and road course events!

The fat loot from winning the GRM Challenge! Kumho V710s in 315/35/18 size being used on the front and rear of the Vorshlag Mustang

After we got back from the GRM Challenge event last October, we had planned on several "upgrades" to the Scrap-E30. Since then we kind of got carried away and replaced a LOT of the junkyard parts we had used for the magazine shootout. Now that we are not restricted to a $2012 budget, there were so many things we wanted to fix, replace, or upgrade. We have replaced major components like the engine, transmission, wheels, shocks, springs, brakes, interior, camber plates, and more. It still looks similar on the outside, but so much of it is new and improved.

Above left is the T5 that gave its life on the wet dragstrip at the GRM Challenge. The unit above right is a fresh T5 from a 2000 V6 Camaro in conjunction with a new T56 hydraulic throw-out bearing assembly (the old V6 unit still worked, but since we had it out we replaced it). Then we replaced the junkyard LS1 Camaro clutch and flywheel with fresh LS7 Corvette parts.

The iron block 5.3L "LM7" we had used for 2 years of GRM competition was a bit of a heavy lump, and it had a nasty camshaft that made it a bit of an on-off switch. I had wanted to replace this with an aluminum LSx motor, so we swapped them once we had a replacement motor lined up. After a couple of months of looking we found a low mileage "L33" engine locally, which is an all-aluminum 5.3L used in a small number of GM trucks to save weight. We wanted it for the same reason - to lose 80 pounds off the nose of the car. It looked like this L33 engine spent most of its life in Oklahoma due to the red dirt "staining" on the bare aluminum, which is common in that region.

After sealing up all of the ports, the block was pressure washed and scrubbed clean, and the red staining was mostly removed. Short of a full-on high temp acid bath, it's as clean as it's going to get. The insides of ports and heads looked clean with the intake and valve covers off, too.

We swapped over the modified GTO oil pan, a Camaro LS1 intake manifold, and the truck coil packs from the iron LM7 onto the aluminum L33. We replaced all of the gaskets with new FelPro parts, installed a new PowerBond balancer + OEM crank bolt (which took a positively massive torque wrench - that was fun!), new NGK spark plugs, new serpentine belt, and some Castrol GTX oil for the first oil change flush (I always go with a quick 50 mile oil change after opening up any motor). It fired up on the first crank and runs like a champ - I have driven it around several times and now that it has street tires, it will be getting some street use (more on that in a bit). The stock L33 heads and cam are darned good, and I suspect it makes pretty close to the horsepower numbers it made before (which was 355 whp). The car has lost weight too (I'll take a corner weight picture of it tomorrow), so it should be as quick, if not quicker than before.

This extremely budget restricted car has had numerous leaks, and each time it was moved we had to clean up coolant, diff fluid, power steering fluid, and sometimes fuel. When there's no money left to replace seals and gaskets, you do what you gotta do. Now that we are done with the $20XX budget event I wanted the guys here at Vorshlag (and yes, my own shop techs can finally work on this car on the clock, which is a huge relief! No more need for all-volunteer work effort) to get this thing "leak free".

First up was the diff side and pinion seals, which were all replaced with new seals from BMW. Since the halfshafts had to be popped out to remove the diff, the sketchy looking CV joints and boots were replaced with a pair of new halfshafts - just because we can. The very used E36 steering rack in this car leaked ever so slightly for the past 2 years, but then a month ago it started puking fluid each time it was started (internal seal blew). We found a rebuilt E36 rack for under $300 and it went in this week (that was fun). We still need to chase down the slight fuel leak, which just started on Monday - the car is going on the rack tonight for a look. So now the little E30 is almost 100% house-trained. One more leak fix and no more "potty pads" or unwanted puddles.

I will cover another gaggle of updates (brakes, seats, belts, coilovers, camber plates, CCW wheels/tires, lights, gauges, and state inspection?!) in my next project update, later this week. Why am I covering all of this now? Well... we need room in the shop for some upcoming V8 swap projects so we're going to sell this "$2011" beast. Just like the Vorshlag E36 LS1 "Alpha" car, this one is going to have an eBay auction, and all proceeds will go to the charitable foundation titled "Vorshlag LS1 Swap Addiction" (money from the sale of this car will fund our next LS1 swaps!). I will talk more about the upcoming auction in my next update.

More soon,

Last edited by Fair!; 05-16-2012 at 07:10 PM.
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