Time Trial Build Thread (aero, widebody, any other nonsense)

[itsnotanova]

Did you strip the wheel well area of everything? charcoal canister, washer fluid bottle and liners?

[truegearhead]

Originally Posted by itsnotanova

Did you strip the wheel well area of everything? charcoal canister, washer fluid bottle and liners?

Yep, the car is stripped of just about everything.

I finally got around to checking the front track width and found I made some serious miscalculations. The front track width (hub to hub) is now 66"s, factory is 56.89. So the front is over 8"s wider than the stock design (10" wider with the larger wheels and tires). The problem is the rear is only 4"s wider, I can order 3" spacers but the front will still be 2" wider than the rear. I wonder how problematic this will be.

EDIT: I'm finding conflicting info on factory hub to hub measurements, but it seems the rear from the factory is almost 3 inches wider than the front. So if put 3" spacers on each side of the rear everything will shake out to being square (66"s width in the front and 66"s in the rear). In other words, crisis averted...maybe

[Quadcammer]

woof, 3" spacers.

Your wheel bearings are gonna LOOOOVE you

[itsnotanova]

The reason I ask is if you had thought about air pressure behind the front tire? I see lots of race cars where that area has been notched. It seems like an easy thing to do if you've removed the charcoal canister and windshield wiper fluid reserve.

[truegearhead]

Quick update, I got the flares back from the wrap shop. Turned out alright

[Stroked & Blown]

Looking good, but are those James Bond Effect flares?

[truegearhead]

Originally Posted by Stroked & Blown

Looking good, but are those James Bond Effect flares?

Haha, love it! I can’t believe I didn’t get flares with built in ground effect lights. What an amateur move.

[truegearhead]

I'm really running out of things to do but I had another idea last night and made a louver cover for the hood. Its not done yet and still needs to be wrapped but you get the idea. I'm going to try and copy the livery underneath the vent with the wrap. So the teardrop and numbers will be printed on the wrap.

[truegearhead]

Its all starting to come together! The suspension arms have all been extended (this was a horrible pain to get right and the sway bar linkage is still questionable) and the hood and wheel well vents have been wrapped



Here's everything I did to extended the suspension on the front of the car.
-Extended Elephant racing control arms using longer collars and hardware
-Installed rear toe arms (which are longer than tierods) on the front to replace and extend the tierods. These needed to be extended even more with adjustable end links
-Since the arms are longer the strut also needed to be extended, I drilled new holes in the strut and raised it in the hub
-Moved the strut mounts out by drilling and grinding a spot for them into the chassis
-modify strut bearing to fit in new location of the chassis
-Install adjustable toe links
-install spacers on the swaybar linkage and extend hardware
-cut fenders and install flares

[Quadcammer]

some interesting stuff going on. The hood looks good.

the suspension is a little dodgy in my eyes. There are just too many things changed from how they were intended to function. I'm not sure if you have an engineering background, but I'd want it looked over by someone with a suspension design background before going out and pushing it on the track.

Maybe it will be fine. Either way, would be interested to hear your impressions after some time on the track.

[truegearhead]

Originally Posted by Quadcammer

some interesting stuff going on. The hood looks good.

the suspension is a little dodgy in my eyes. There are just too many things changed from how they were intended to function. I'm not sure if you have an engineering background, but I'd want it looked over by someone with a suspension design background before going out and pushing it on the track.

Maybe it will be fine. Either way, would be interested to hear your impressions after some time on the track.

ya.. I'm a little worried about it. I am a mechanical engineer but I'm not a suspension engineer. I've had a lot of people who build race cars look at it but who knows. We'll just have to see how it does.

[steved0x]

Those sway bar extensions seem like they might act like a soft extension, if they flex it may have the effect of softening the front bar.

Maybe you could attach higher up, maybe on that notch where the brake sensor wire used to go? Although I don't know how string that is. Maybe the Tarett extended front links?

Car looks great, can't wait to hear how it does

[Stroked & Blown]

What’s happening under the hood? Did you add another duct that feeds the hood louvers from the underside, raise the front edge to split the flow, or something else?

[truegearhead]

Originally Posted by Stroked & Blown

What’s happening under the hood? Did you add another duct that feeds the hood louvers from the underside, raise the front edge to split the flow, or something else?

Originally I had an opening in the bumper but I changed that design and now have a diffuser in the splitter that exits through the hood vents. The diffuser isn't installed in the photos.

[Stroked & Blown]

Originally Posted by truegearhead

Originally I had an opening in the bumper but I changed that design and now have a diffuser in the splitter that exits through the hood vents. The diffuser isn't installed in the photos.

I would LOVE to see pics of the underside when you get a chance

[truegearhead]

Some of you have probably seen my "Wild Japense Racecars" post earlier this week, I can't get over how great these things looks (if you haven't seen the post here's a teaser)


Wild Japense 986 Racecars

Last night I played around with some cardboard and mocked up some rear flares that would be make out of aluminum. Getting the template right will be really really tough but cutting and bending the aluminum. The idea is they would sit against the flares I already have on the car and the openings in the new flares would be used to the engine intake (I'd move it again) and an oil cooler on the other side. There is of course absolutely no good reason to do this except to save me from going made during the Quarantine

[truegearhead]

On Friday I picked up $40 worth of aluminum and started hammering away. Nothing is attached yet so it looks a little wonky, it'll look much better once its been fastened down to the body lines. So far so good though I think its going to work. Once I get it fastened down I'm going to pick up some used e30 oil coolers (which are long and narrow and stuff them into the flare openings. Hopefully the oiling system can handle the additional volume, I still have some research to do on that one.

[Starter986]

Originally Posted by truegearhead

On Friday I picked up $40 worth of aluminum and started hammering away. Nothing is attached yet so it looks a little wonky, it'll look much better once its been fastened down to the body lines. So far so good though I think its going to work. Once I get it fastened down I'm going to pick up some used e30 oil coolers (which are long and narrow and stuff them into the flare openings. Hopefully the oiling system can handle the additional volume, I still have some research to do on that one.

On one of the forums yesterday I read a post about someone asking something similar... extra oil coolers. The poster queried why the oil cooler wasn't mounted in the front of the car. A responder replied that the, IIRC, the oil pressure was insufficient to handle all those lines... insificient pressure. If you find a workaround... please share.

[truegearhead]

Originally Posted by Starter986

On one of the forums yesterday I read a post about someone asking something similar... extra oil coolers. The poster queried why the oil cooler wasn't mounted in the front of the car. A responder replied that the, IIRC, the oil pressure was insufficient to handle all those lines... insificient pressure. If you find a workaround... please share.

Well damn thanks for letting me know. I guess my only option is turbo charging it so I can fill the flares with intercoolers. Sigh....

Thanks again for the heads up

[truegearhead]

The roof is done! don't worry about those fender bolts those are being replaced. The car goes into the wrap shop Monday and if everything goes right it'll be back on the track at VIR next week. I have a LONG way to go with the other side of the car.