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Sebring 2011 Video from the Biohazard Toyota MR2


Bill Strong
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I got a 4 minute video completed last night. shows the start of the race from the perspective of the Biohazard Toyota MR2. Car owner Troy Trugleo is driving. Mind you, we had never been on the long course, except that we had been watching some You Tube instructional videos from Corvettes and Toyota MR2 Spyders... so we really had no clue where we were going the first few laps.

I have the full 14 hours on video with the exception of about 1 hour where I failed to start the ChaseCam. dummy me...

I'll be posting them up once I get them processed using this thread.

Video one... the start...


/>http://youtu.be/f24KUcJHXnY

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7th. would have been better if we actually had brakes... lap 7 was our fastest lap, lap 8 - 213 was absolutely fracking scary as we barely had any brakes. Sometimes they would be there, but mostly not. Draft someone? Ya, and discover no brakes as the car in from hit his brakes..

Lesson learned from this event? Ether don't go fast, or don't touch the brakes...

But I would do it all again in a heartbeat.

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The 12-hour course is hell on brakes. I don't think even our car would've survived with street pads, and we've got 13" 350Z rotors and cooling ducts.

The MR2 looked quick, though. With some more weight reduction and tire under it I bet it could contend for the win? Before you guys backed off on the braking, what was it hitting on the back straight?

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backed off? hehe, we never really back off, we just hoped...

120 or so..

we would brake at the 4 marker, but would have let off about 20 meters before that.

I don't think we can get sticker rubber on it within the rules...

the brakes are 91 turbo brakes. I think Troy is working on a cheap upgrade using existing Toyota parts. He does have massive amounts of ducvting for the brakes. He was using Carbotech pads, not street stuff.

I think the only weight reduction left on his car is our fat asses...

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backed off? hehe, we never really back off, we just hoped...

120 or so..

we would brake at the 4 marker, but would have let off about 20 meters before that.

I don't think we can get sticker rubber on it within the rules...

the brakes are 91 turbo brakes. I think Troy is working on a cheap upgrade using existing Toyota parts. He does have massive amounts of ducvting for the brakes. He was using Carbotech pads, not street stuff.

I think the only weight reduction left on his car is our fat asses...

Cool, 117 was my highest top speed. The fast way to slow down for 17 in slow cars is to stay WOT up to and including turn-in, then trail-brake for the corner itself. On my quick laps I'd turn at the 2 marker, stay WOT until we passed the point of the wall that juts out, then start to slow down. Faster cars will of course need to straight-line brake, but I doubt thats anything in ChumpCar.

I thought I'd remembered you guys being on relatively narrow rubber. I guess anyone with 17s (which we have to run to clear our 13" rotors) has advantage in StarSpecs being available up to 265 vs. 225 for 16s.

As for weight reduction, it still has a roof :P Didn't it have door bars and such too?

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Yep. Troy went a bit thicker on his tube choice as well as compared to the other two MR2s that David and I own (ModSquad). Troy was using 235 40 17 on all four wheels. I heard him say he will be going to a wider tire package next year. Roofs? Ya, we run roofs. I don't, and I know that Troy and David do not like this trend of cutting the car to bits to get down to what I consider an unfair weight. But, the rules allow it. We just wont play by those rules.

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Not sure 120-125mph but it was impossible to plot entry and manually log speed.

We use GPS data acquisition (which can be practically free nowadays with RaceChrono and the like). If you don't use DAQ in practice, your drivers may be leaving a lot of time on the table. IIRC you were braking a lot earlier for 17 than us, so I doubt you hit over 120, but who knows. I believe you had more top-end.

I'm not sure the roof chop is an advantage in many tracks due to drag, unless you spend some time re-doing the aero. I'd bet it costs time at Sebring. In any case our car was abandoned in the woods and had an A-pillar crushed by a fallen limb. We actually purchased the thing (with rod knock) for $150 for that reason.

Anyone want to share the weight on the MR2 and J30 Shark?

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We use GPS data acquisition (which can be practically free nowadays with RaceChrono and the like). If you don't use DAQ in practice, your drivers may be leaving a lot of time on the table. IIRC you were braking a lot earlier for 17 than us, so I doubt you hit over 120, but who knows. I believe you had more top-end.

I'm not sure the roof chop is an advantage in many tracks due to drag, unless you spend some time re-doing the aero. I'd bet it costs time at Sebring. In any case our car was abandoned in the woods and had an A-pillar crushed by a fallen limb. We actually purchased the thing (with rod knock) for $150 for that reason.

Anyone want to share the weight on the MR2 and J30 Shark?

I saw 122mph more then a couple times before early braking going by the stock speedo which seemed close to reality, practice? Our first lap on this course was when transponder checks happened, I am sure theres plenty of speed to be eeked out of the shark but with 17 in wheels/tires ($1000) out of reach we can not corner nor upgrade to 13 in rotors to keep from severely warping 11 in rotors by late braking.(not to mention the adapters we need to squeeze into our aiv to do it)

No idea of our weight, the shark has never seen a scale.

Quint huh....

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V6 with stick, 13 in brakes, and no laps??

I think that was in reference to us in the Z and that is correct. Guess we will have some now after the win. There were other cars that were really close to our best lap, but the times were more consistent between our drivers. The 13" rotors cost the same price as the stock ones for the car, and we are using stock calipers with a spacer.

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Anyone want to share the weight on the MR2 and J30 Shark?

We actually weighed ModSquad 1 and the BioHazard at the New Jersey Lemons race on race scales. The 4 cylinder ModSquad MR2s (The slow MR2s) cars are at 2350 pounds with 1/2 tanks of 87 octane unleaded and no driver. The Biohazard was at 2400 with almost the same config. He runs much larger tires and has the Toyota V6 installed.

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I saw 122mph more then a couple times before early braking going by the stock speedo which seemed close to reality, practice? Our first lap on this course was when transponder checks happened, I am sure theres plenty of speed to be eeked out of the shark but with 17 in wheels/tires ($1000) out of reach we can not corner nor upgrade to 13 in rotors to keep from severely warping 11 in rotors by late braking.(not to mention the adapters we need to squeeze into our aiv to do it)

120+, wow, I'm glad you guys don't have 17s and 13" brakes then ;)

Can you not put Z32 brakes on that car? They aren't super cheap (used calipers run $100-$200, 240 guys often snatch them up), but are high-quality four-piston units. All we did was spend $100 or so on a set of caliper brackets and we were able to run 350Z rotors. $40 each from parts stores. By now I'm sure the setup has saved us money. Of course you'd probably need 17s to clear the rotors, heh.

Its a shame ChumpCar doesn't allow the use of the cheaper, longer-lasting and grippier Hankook R-S3 (vs. StarSpecs, but rated at 140 treadwear for some reason). They're only $125 each in a 255/40/17.

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Complete Z32 brakes already on the car,all bolt on except for the addition of some washers to recenter the calipers, a increase on pedal pressure and 2mm WIDER rotors(still stock j30 diameter) plus availability of pads was the only changes noticed from the upgrade, they still warp even with doubling the cooling...

What I am having difficulty with is the price of legal tires in a more competitive size and brackets to accommodate the bigger rotors. No offense but our car is barely able to be AIVed down to squeeze the brackets, I have no idea how you have AIVed 10 complete running 5 speed z32s to fit the $90 worth of brake adapters.

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we can use Supra TT rotors and 93-95 MR2 turbo calipers. all we need is a little bracket made and we can do those on our mill. The TT rotors are just a coupe bucks more than the stock rotors so that is WAY under the 2x rule and it is even Toyota parts. The rears are stock 93-95 vented, and if you gut the stock prop valve the bias will be perfect. and I think, in theory, we can reduce our overall brake costs for the year due to the pads lasting longer due to larger swept area and reduced heat into the pad.

The only thing I don't like in going with brakes that will actually work on these fast tracks is the added weight...

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Its not rotor cost as they are most always within the 2x rule (unless its some fancy 2 piece unit), the brackets to reconfigure things are deliberately left outside 2x status, it helps ensure another level to enforce AIV.. Well thats the way we read it.

Sebring last year taught us a lesson about what the typical parts store carries (j30 parts)on any given weekend, moving to a z32 caliper opened up a whole new world in on the spot availability, reducing costs was a sweet side effect, not to mention we were able to keep it all nissan.

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We counted our brackets as being under the 2x caliper rule as well. They didn't say anything about it in tech. After all, for 2x the cost of stock Z32 calipers you could go to something like a Wilwood BSL4, or maybe even a StopTech ST-40. Me, I'd rather spend $100 on brackets. Not that we'd have braking issues with stock 11" rotors; I'm 99% sure we'd be fine, just get less life out of pads and especially rotors.

What pads are you running? I've destroyed lots of brakes, but never actually seen a rotor warp. Overheated pads will put a lot of deposits down on a rotor and cause the pulsating 'warped' feeling, though.

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We counted our brackets as being under the 2x caliper rule as well. They didn't say anything about it in tech. After all, for 2x the cost of stock Z32 calipers you could go to something like a Wilwood BSL4, or maybe even a StopTech ST-40. Me, I'd rather spend $100 on brackets. Not that we'd have braking issues with stock 11" rotors; I'm 99% sure we'd be fine, just get less life out of pads and especially rotors.

What pads are you running? I've destroyed lots of brakes, but never actually seen a rotor warp. Overheated pads will put a lot of deposits down on a rotor and cause the pulsating 'warped' feeling, though.

I re read the rules, caliper relocating brackets count toward car value, they are NOT part of the 2x rule and yea I believe the 2 other z32 cars had wilwood calipers up front.

Heat cracked, deposited, warped rotors are what Sebring gives us,but to be 100% sure I will dial indicate when opportunity presents... Carbotech.

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This seems like a thread gone way off topic. Love the videos Bill!

As a PS on tires, I'd bet that a good reason for the 190 thread wear rating limit is to keep us with slow cars on some kind of equal footing with you guys with the real race cars out there. Big HP and now put on some race spec 18" 295 tires and giant brakes and you'd start seeing some Pierre Levegh LeMans 1955 type wrecks when you fly by. Some leveling of the playing field makes sense to me, but then again I'm not the one exploring those limits so I guess I'm biased...

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