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the franken-rex rolls!

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the franken-rex rolls!

Postby incomplete » Mon Jul 13, 2020 5:10 pm

the people's republic of racing (based in the people's republic of berkeley, ca) present to you: the franken-rex!

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it's been a long time since i posted here, but we just got most of the bugs ironed out of the full racecar build and have been taking it to small track days in CA. it's an enduro car, so simplicity, reliability, economy and driveability are key. at the same time, it is made out of about 8 different civics, crxs and integras... which is what you do.

you should see the spreadsheet. it's epic.

the chassis is an 88 HF, with 98 integ rear arms, 91 si front suspension, some pci sphericals here and there but mostly poly bushings. a set of craigslist koni yellows w/450lb springs in the front, and 600lb in the rear. (we have a set of 800lb springs if we feel stiffer is better). no sway bars.

engine is a driveway rebuild early 88 d15b2 w/mpfi upgrade, and we have an 89 Si transmission. the shift linkage is all poly/aluminum with a single-bend steel short shifter. we 'upgraded' to an Si fuel tank and get almost a full gallon more gas... after two hours of flogging flat-out at a track day last weekend, we burned through 10g. this is perfect for enduro -- we want the car on track for at least two hours between driver changes and minimize time in the pits.

inside: full cage, fire suppression, custom seat/slider mount (driver height ranges from 4'12" to 6'3"), oil pressure gauge, kirkey seat, schroth harnesses.

it's slow, handles like a dream and you never need the brakes! we'll be painting the car soon, and getting the aero sorted (front splitter, rear spoiler).

the only work we farmed out was for machine work on the head/block, transmission rebuild, and cage welding. we built the cage bits under the direction of john pagel @ evil genius racing in his shop, and he welded it in to the car. the cage is some seriously amazing work, and i have incredible amounts of headroom at 6'3".

if anyone has questions about the car, build, etc, lemme know! i got a bunch of Qs answered here, and this board has been a nice, drama-free source of reliable advice and i'm down to give back. :)

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Re: the franken-rex rolls!

Postby incomplete » Sun Jul 19, 2020 8:19 pm

made a lot of progress today on the splitter... we're going for the rustic, craftsman style so beloved in berkeley w/the brown garden edging.

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Re: the franken-rex rolls!

Postby incomplete » Mon Jul 27, 2020 10:55 pm

ready for paint!

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our ideal livery!

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Re: the franken-rex rolls!

Postby incomplete » Thu Aug 06, 2020 10:54 am

paint done! we sprayed it at a friend's shop w/tractor paint (primer + "AC Orange"), and did a wet sand between the 2nd coat of primer and first color coat. it's definitely got orange peel, but looks great from 5' away. i consider that a success!

it took a while, but i was able to finally convince my teammates that doing a fade like the image above would be far too difficult and time consuming w/a harbor freight sprayer and tractor paint. once we started putting the orange on it, however, everyone immediately got on board.

we renamed the color "[potty mouth] ORANGE". it's glorious!

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Re: the franken-rex rolls!

Postby signalpuke » Thu Aug 06, 2020 4:51 pm

Who sells the splitter mount?
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Re: the franken-rex rolls!

Postby 4drSpankR » Fri Aug 07, 2020 6:39 am

signalpuke wrote:Who sells the splitter mount?


It looks like a PCI setup, although there's is black and I'm not sure if it comes in any other color.


Well done guys on the splitter!!
1991 HF - '97 B18C1
1989 Si - gone
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Re: the franken-rex rolls!

Postby Foogar » Sun Aug 09, 2020 10:24 am

signalpuke wrote:Who sells the splitter mount?

It looks like the one Garage Build Hondas used in THIS video.
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Re: the franken-rex rolls!

Postby 4drSpankR » Mon Aug 10, 2020 6:31 am

Foogar wrote:
signalpuke wrote:Who sells the splitter mount?

It looks like the one Garage Build Hondas used in THIS video.


Which is a PCI model.
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Re: the franken-rex rolls!

Postby signalpuke » Tue Aug 11, 2020 5:57 am

Thanks
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Re: the franken-rex rolls!

Postby incomplete » Tue Aug 11, 2020 12:56 pm

4drSpankR wrote:
signalpuke wrote:Who sells the splitter mount?


It looks like a PCI setup, although there's is black and I'm not sure if it comes in any other color.


Well done guys on the splitter!!


thanks! it was a lot of work, and i got a million little cuts all over my hands from the alumalite, but i think it came out great. i need to add some turnbuckle braces to the front, and will post pics of that when it's done.

for the splitter mount, we actually used the one from maxpeedingrods:
https://www.maxpeedingrods.com/product/ ... lts69.html

(i discovered this mount from a different garage built hondas video: https://www.youtube.com/watch?v=jKQ0cQJGEl0)

we had to drill 3x holes in the front frame rails w/rivnuts to make it work... the pci ones mount under the front subframe. the maxpeedingrods mounts that go on the splitter itself are steel, vs pci being aluminum. i am a little worried about transferring impact damage up to the mounts on the chassis but we'll have to see.

my neighbor runs a printing shop, and offered to make us vinyl stickers for the cost of materials... i'll have him do some test prints and if they are nice, i'll share the link to his shop here.

next up: thematic stickers, splitter turnbuckles and a rear spoiler made from the scrap alumalite!
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Re: the franken-rex rolls!

Postby incomplete » Tue Aug 11, 2020 1:16 pm

incomplete wrote:next up: thematic stickers, splitter turnbuckles and a rear spoiler made from the scrap alumalite!


well, and a million other little things besides those. #becauseracecar
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Re: the franken-rex rolls!

Postby ColdLumpen » Tue Aug 11, 2020 6:25 pm

Cool project. Are those BMW wheels? Do you do your own alignment or use a shop in the Bay Area?
-james. 91 Si
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Re: the franken-rex rolls!

Postby incomplete » Tue Aug 11, 2020 10:51 pm

ColdLumpen wrote:Cool project. Are those BMW wheels? Do you do your own alignment or use a shop in the Bay Area?


yep, those are e30 bottlecaps -- perfect offset, super light, 14" and exactly what a d15b2 needs. we have some 15x8s for when we up horsepower and need more contact patch.

griffin motorwerke in berkeley did our post-build alignment, but we will be doing our own adjustments moving forward... once we put together the proper kit in as much of a DIY way as possible.
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Re: the franken-rex rolls!

Postby ColdLumpen » Wed Aug 12, 2020 12:21 am

I occasionally see those bottlecap wheels free on craigslist but am always too late to snag them. They wouldn't fit on my crx (big brake) but would be nice on my miata.

:-)b to Griffin. Back in the day, I'd bring my crx there just to be tech'd for track days but thought their garage only wrenched on European cars.
-james. 91 Si
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Re: the franken-rex rolls!

Postby incomplete » Wed Aug 12, 2020 3:00 pm

ColdLumpen wrote:I occasionally see those bottlecap wheels free on craigslist but am always too late to snag them. They wouldn't fit on my crx (big brake) but would be nice on my miata.


let me see how many wheels we have... i might have an extra set for sale.

ColdLumpen wrote: :-)b to Griffin. Back in the day, I'd bring my crx there just to be tech'd for track days but thought their garage only wrenched on European cars.


i take my rsx-s time trial car there for NASA inspection, and they can align pretty much anything. i haven't used them for any work on my hondas tho, as i typically do all that myself. they'd be able to (and more than happy to) work on imports, though they do specialize in the european stuff.
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Re: the franken-rex rolls!

Postby lemon_car » Thu Sep 17, 2020 10:55 pm

Hey incomplete - I'm curious about why you don't run sway bars. Any input?
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Re: the franken-rex rolls!

Postby incomplete » Sun Oct 04, 2020 6:50 pm

lemon_car wrote:Hey incomplete - I'm curious about why you don't run sway bars. Any input?


right now, it doesn't seem to *need* them... i'll be @ sonoma tomorrow and that track, more than any, will let me know if i'll be thinking again about that. i want it to be tail happy, but in a super sane and predictable way.

the other issue is that this is an HF shell, so any rear sway mount will require some fab. :\
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Re: the franken-rex rolls!

Postby 4drSpankR » Mon Oct 05, 2020 6:37 am

incomplete wrote:
lemon_car wrote:
the other issue is that this is an HF shell, so any rear sway mount will require some fab. :\



You can use factory Si mounts and bar with very little effort. I did this many years ago and just removed it for an ASR 24mm sway bar/subframe brace.
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