BMW E46 Build Thread – Final Track Test, New Paint, Sold + New E46 Cars Added!

Since our last update in our E46 BMW Development Forum Build Thread (latest updates here!) we have had a lot of changes with our red 330 TTD/TT4 build. We did a track test right after NASA @ NOLA, late in 2017.

Then the car went to Heritage Collision for a fresh paint job, and we got to work cleaning the car up, inside and out. Due to some unexpected TT4 class rules changes, we put the car was for sale in early 2018. It was gone in a day.

Sad to see that car go, but we have since added several additional E46 chassis to our fleet of cars waiting to be built.

Look for more info on these builds soon, and again, catch up on the detailed E46 build thread here!

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New: Vorshlag E36 RHD “Stage 0” LSX V8 swap kits!

Did you Aussies, South Africans, Brits, and other RHD Bimmer owners think we had forgotten about your LS V8 cravings? We have good news: after one full year of development and testing, the Vorshlag RIGHT HAND DRIVE BMW E36 “Stage 0” LS V8 swap kit is available for purchase!

The RHD E36 chassis required unique motor mounts, transmission crossmember, driveshaft length, and of course unique long tube headers. The exhaust headers are bigger at 1-7/8″ diameter, 100% stainless, TIG welded, and made in the USA off of our E36 RHD prototypes. And we have a large batch in stock and ready to ship. We show more details of the development and production of these parts in this forum development thread.

We just finished a batch of motor and transmission mounts, which are shown here in raw steel because they are hot off the fab table! These are going to the powder coater tomorrow and will be delivered in metallic silver finish with poly bushings and all the hardware.

The production motor mounts and transmission crossmembers are made 100% in house, using parts from our new CNC plasma table, and are fully TIG welded on our production fixtures.

If you live in a country that has RHD BMWs, and you crave the easy power of an LS V8, please take a minute You can read the latest entry in the RHD E36 LS swap forum development thread, which was based of of our tester Jack’s RHD E36 chassis he has had with us for this work.

And if your friends tell you that V8 swaps are crazy, maybe you need new friends? #LSswapThePlanet

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550 Mustang: We add Safety, Suspension, Hoosiers and go to NASA Nats!

We had a very busy September and managed to squeeze in a little development work and parts installation onto our 2018 Mustang GT test mule, which we cover in great detail in our S550 Forum Build Thread.

The changes we made in the week before the 2018 NASA National Championship event at Circuit of the Americas (COTA) were huge, and it helped us make a leap forward in on-track performance.

We added a new 4-point roll bar we built, a seat bracket kit we designed, a Sparco Circuit II seat, and Scroth harnesses for safety.

MCS RR2 remote reservoir double adjustable monotube coilovers + more spring rate cut down on the roll/dive/squat. Hoosier A7 tires in 315/30/19 added a lot of mechanical grip.

A massive 380x34mm 6-piston Powerbrake kit added a lot of stopping power – with 1.5g stops recorded on data, lap after lap.

We took all of these changes to NASA Nationals and then chronicle the Time Trial competition in great detail. Check out the massive Forum Build Thread update to read more!

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Agent86 Gets Big Wheels, Tires, and Flares!

Although we have been busy this summer building our new shop and moving the business, we still took some time in August to upgrade our ’13 FR-S with some REALLY big wheels… 18x11s at all four corners! We have a huge 4-part forum build thread update showing the work needed to make these fit – and of course the track test to prove their worth.

We ordered Forgestar F14 wheels with their Super Deep concave spokes. We designed an offset that worked well at both ends, so we can rotate the 315/30/18 tires for more even wear,if needed.

We explore several “bolt on” flare kits, and picked one, then showed the various steps needed to install them. There is a lot of clearancing needed to swing a 315mm wide tire on the front of the 86 chassis, and the rear needs a good bit of fabrication as well.

Finally we take the our “widebody” 86 to the track and test it on TWO different road courses. We first drove 3 sessions on our test track, the MSR 1.7 CCW, and saw a huge drop in lap time from previous tests. On the same day we competed in an SCCA Club Trials event on the MSR 1.3, and won the class. Data logged video and first hand driving impressions are included in the forum build thread, of course. Enjoy the read!

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S550 Mustang Update: Brake Tech, Autox, Time Trials, and Champagne!

In this mega-sized Forum Thread Update covering our S550 Mustang development (lately using our shop 2018 Mustang GT) we cover 5 more track days, Terry’s first autocross in the ’18, some brake system changes/tech/testing, and more.

We ran the car with NASA at COTA (above), with Optima at NOLA (below), with SCCA (Club Trials and Track Night in America), and even did some private testing on a road course (our 4th test at MSR-C). The good, the bad, and the ugly from each of these events is covered in this round – with some nice wins and a few “non-wins”.

Some valuable lessons were learned about brake hydraulics after track testing the factory PP1 15″ brake upgrade with the base GT brake master cylinder and booster on our ’18. A bit frustrating where we learned that (at a televised Optima event!) but it was soon fixed and track tested 3 more times after upgrading to the PP1 hydraulics and booster.

This update is chock full of dozens of pictures, many videos, and lots of other late model Mustang tech. Enjoy!

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New Carbon Bodywork for shop C6 Z06: Project Rampage!

We have finished our shop move and are back to posting tech filled forum build threads! This update covers our in-house build of a C6 Corvette chassis that we call #ProjectRampage. The end of the posts might better explain why we chose that name.

After spending months chasing down fender and nose options for the C6 widebody chassis we show testing of what exists in the marketplace, tried on some cheap fenders (that didn’t fit), show some wider-than-widebody options, and cover the pros and cons of the OEM Z06 / ZR1 / GS fenders as well.

Throughout this update we show how we took our C6Z – missing most of the bodywork – and turned it onto a fully formed chassis with all OEM panels, then explain where it was headed for new carbon bodywork to be formed. If you have a C6 Corvette or ever plan to build a race car from one of these, you might pick up some body panel tips. Thanks for reading!

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More 2018 Mustang Brake Upgrades, Tech, and Racing Action!

We have written another 3-part forum post chronicling the testing, updates, and Time Trial events we continue to do in our shop 2018 Mustang GT.

After another step up in pad compounds, Amy and Terry both competed in the ’18 GT at an SCCA Club Trials competition event at Eagles Canyon Raceway, above. Braking endurance wasn’t any better, and at this brake intensive track the brakes were cooked after one hard lap. But with some careful rationing of the brakes Terry was able to eek out one quick lap at the end of the day to win the Street Touring 2 class.

During this same >forum thread update we jump back in time four years and show stock S550 lap times driven by the same driver in a 2015 Mustang GT with the optional 15″ PP brakes. Since the 15″ brakes were pretty reliable then, even on stock pads, we stepped up to this set of rotors/calipers on our 2018 GT – which we bought with the base 14″ brakes.

Following the ECR event we show the upgrade to the “Performance Pack” front brakes with 15″ rotors and 6 piston calipers, as well as new tow hooks and some other tweaks. We also built a prototype brake cooling package for this 15″ setup, which will go into production later this year. We missed one critical issue on this upgrade that hurt us at our next series of events. Read more about this car in our S550 forum development thread, starting here. Thanks!

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S550 Build Thread Update: Mods, Testing, & Tech!

We have a lot of things to share in this massive 4-part entry to our S550 Development / 2018 Mustang GT build thread this time. You might want to get a snack, then settle in for a good read.

In this latest update we show the installation steps for the Whiteline coilovers and swaybars added to our shop 2018 Mustang, with dozens of pictures and even a handful of Tech Tip videos along the way.

There is a lot of technical info about the 19×11″ wheel and 305mm tire upgrade we performed. Sure was a big step up from the factory 235mm all seasons – we basically added a 5th tire!

We then do a Race Summary show our Track Test # 2 (at a NASA Time Trial race weekend), where we found a huge ten second drop in lap times from the stock laps run a week earlier. The data logged video is dissected and compared to 12 other late model street and race cars we have driven at the same test track with the same driver. Where the 2018 GT slots into that list in stock and modified form is pretty amazing.

There is also a frank discussion about the unusual brakes found on the 2015-up Mustangs Ecoboost and base model GT. Some real weirdness uncovered, and some unsolvable problems – but we have a plan. You can start reading about it all here.

Thanks for reading!

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Vorshlag 2018 Mustang GT – Two Track Tests

The Vorshlag crew has been busy and in its first two weeks of ownership our 2018 Mustang GT test mule has been to two track tests and an autocross. We talk about the first two track tests in this forum thread.

All of our testing is done at MotorSport Ranch Cresson (MSRC) on their 1.7 CCW course. The stock baseline times were hindered by wheel and tire limits, plus the stock brakes.

The latest test showed a huge drop in lap times after we did some suspension, wheel/tire, and brake pad changes. Check out the details and both in-car the videos here.

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Vorshlag Buys 2018 Mustang GT – New Parts Coming!

Exciting news to share for this racing season here at Vorshlag: we waited until the S550 got -REALLY- good and bought the revised 2018 GT about two weeks ago! Lots of plans for new parts to make, lots of existing S550 products to test, and many racing shenanigans in the future! Read more in this 2-part forum post.

This is “Big Red’s Dirty Little Sister”, and its got the “base everything”. We explain why we bought the lowliest GT, why the 2018 is special, and what we have in mind in our S550 development thread. The 460 hp direct inj3ected 5.0L is pretty damned nice.

In this first series of posts we cover the best parts of the S550 and get into some serious bench racing. Enjoy!

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