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Resurrection?
The (boring) tale of OGK goes back to the founding of our company 18 years ago. Originally conceived as a lightweight, N/A time attack car (stupid idea), it has morphed into a roofless BP turbo HPDE toy. Now on the second tub, we dragged it out from under the tarp, cleaned out the rat poop and started bolting expensive parts to it. New goal is to have it ready for Miata Reunion at Sonoma in October, which I give a 15% chance of achieving. Nonetheless, we're working on it again and it will get built as Hustler is my witness.
Thanks to customer Derrick Major who finished and dialed in his roofless NB Kswap a while back @trackdaddy_ . Pics and videos from that build lit a fire under my ass. It is street registered in California so Cars and Coffee, KINOD and stuff like that should be fun. Should also be a hoot in auto-x. Current outline, due to change at the drop of a hat, or few shots of whisky SCCA/NASA legal open car cage with removeable main hoop front supports Seam welded 2 seat BP6D turbo with an EFR6258 tuned for maybe 400whp or so fancy AZ6 from Walters Motorsport SPM twin disc clutch 15x10s with 245/40 soup du jour 3.6 OS Giken Xida Race 1100/500 lots of dry carbon and a few frp panels minimalist console, Aim MXS dash GT-1000 64" dual element APR wing 6" alumalite splitter with end plates Singular spicy new fender vents metallic orange paint, of course interior, engine bay will be dove gray. Cage tubes painted body color shorty polycarbonate windshield thing roughly the shape of OEM but cut down to about 8" No hood vents because no radiator. I know, weird right? Bits we're still missing 3.6 R&P but those are floating around OMP HTE-R 400 seats Engine. Shopped around a few builders and decided to have Keegan build this, assuming he's still building BP engines. Kraken hotside bits. Michaels seems to a busy guy. I've been trying to send him money for a few months now. Anybody got a BP lowmount hotside for EFR F/S? A odd few details Radiator is rear mount just behind the rear bulkhead. Radiator is a low cost generic stock car radiator off Summit. The original idea was a custom nose with downforce producing features where the radiator support would normal be. Decided to simplify, expedite and reduce expense by sticking with a stock nose. Might still hack our radiator support to save weight though it has no airflow benefit since the radiator is in the back now. Rear of tub opened up to exhaust radiator airflow. Not sure what will weigh but a gutted NB2 HPDE toy with stock panels and no aero usually weighs around 2000 dry. All our bolt on panels weigh 22lbs total, no windshield, no front hoop on cage, no top, big chunks of tub cut out. Entire steel rear qtr panels replaced with frp junk off ebay. So maybe 1800lbs dry, 2000 with driver and some fuel. That'll give it a power/weight of around 5 on the high boost map. Last time I checked, that's pretty good. Anyway, enough blabbing, here are some images of its current state. Primered a few years ago to stave off rust. Still rusted dang it. Loop on cage on LR is new filler pipe location. https://cimg1.ibsrv.net/gimg/www.mia...25ee94aa2.jpeg Hood, trunk, doors are dry carbon and crazy light. From a dude in Australia about 12 years ago. Rear qtrs are ebay chopper gun frp. Not light, but still lighter than steel and about 20mm wider front and rear bumper skins are OEM but we'll hack away a good portion of them. Rear will eventually get some sort of diffuser. Front gets a traditional Crusher style HDPE air dam with only a small hole down low to feed the I/C. https://cimg7.ibsrv.net/gimg/www.mia...6dc5e53788.jpg This is a brace we designed years ago but never put into production. Weld in steel brackets, bolt in aluminum brace. Had a proto laying around so in it goes. https://cimg2.ibsrv.net/gimg/www.mia...70e01f9bac.jpg ebay panels in the fitting process. Gosh they are crap. Perfect for this build https://cimg2.ibsrv.net/gimg/www.mia...67fdef430e.jpg Open for business https://cimg6.ibsrv.net/gimg/www.mia...486cf64a6f.jpg |
Yuusssssss. Now living in LA I'm excited to get to see this one IRL sometime
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It's back, and back in style.
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Please please please add MK60 ABS, for funsies. You'll love it, even if all it does is save you from flat-spotting some expensive rubber. Heck, since you're not building to a ruleset, go for the MK60e5, though I'd need to check a few things to ensure it'll work with the Miata tone rings...
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Originally Posted by thebeerbaron
(Post 1638177)
go for the MK60e5, though I'd need to check a few things to ensure it'll work with the Miata tone rings...
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Originally Posted by thebeerbaron
(Post 1638177)
Please please please add MK60 ABS, for funsies. You'll love it, even if all it does is save you from flat-spotting some expensive rubber. Heck, since you're not building to a ruleset, go for the MK60e5, though I'd need to check a few things to ensure it'll work with the Miata tone rings...
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Aaaaaaaand, subscribed :likecat:
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Originally Posted by emilio700
(Post 1638140)
2 seat
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Alex Renderos (Renderos Racing) is just finishing up his year long personal project car, an LM4 swapped 240Z on an NC chassis with Xidas. Motor is a honey. 5.3L all aluminum LS with stage 2 cams, tune, headers the usual. Probably making 450bhp and sounds perfectly nasty.
Since its an NC, it has the full NC dash. Interior is super clean. 6pt roll bar. https://www.instagram.com/renderosracing/ https://cimg4.ibsrv.net/gimg/www.mia...6a0f52b9ba.jpg Progress on OGK Wing mounts https://cimg2.ibsrv.net/gimg/www.mia...7f05d51101.jpg https://cimg6.ibsrv.net/gimg/www.mia...c26dd9b8bc.jpg https://cimg7.ibsrv.net/gimg/www.mia...81d6fbb4f3.jpg https://cimg3.ibsrv.net/gimg/www.mia...e60bf46796.jpg |
Now that's a nice use for an NC!
It appears that the Renderos Racing Instagram is private, too bad. I'd like to know more. I'm watching and hoping to learn a thing or two from your progress. |
Progress. Many sanding.
Carbon Miata FRP fenders. Little bit of GT style. Only composite fenders I could find that were a bit wider than stock. 245's clear stock NB fenders but just barely. These are +20mm IIRC https://cimg8.ibsrv.net/gimg/www.mia...f323ba3a95.jpg https://cimg9.ibsrv.net/gimg/www.mia...c1a15ea92d.jpg |
Kraken low mount and DP arrived. Mating to the standard iron CHRA .64 EFR6258.
Will send turbine housing and hotside bits off to get coated. Our experience has been that the thermal Coatings go a long way towards reducing the meltage of other goodies nearby, like my shoes. |
Looks like fun - now that I'm just across the way in Laguna Niguel maybe I'll see this out at cars and coffee sometime.
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Originally Posted by emilio700
(Post 1639124)
Kraken low mount and DP arrived. Mating to the standard iron CHRA .64 EFR6258.
Will send turbine housing and hotside bits off to get coated. Our experience has been that the thermal Coatings go a long way towards reducing the meltage of other goodies nearby, like my shoes. who do you use? |
Originally Posted by richbobby
(Post 1639140)
who do you use?
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Progress.
Dash just about done. Alex had to do some fiberglass patching to get the fenders to fit with the headlight, bumper skin and hood. Wing looks huge. It'll still be a miracle if we have it running for Sonoma but we'll keep plugging away regardless. Motor just about done. Cams didn't arrive in time so we're running stockers. Still enough for 425whp so not a big deal. https://cimg0.ibsrv.net/gimg/www.mia...4a5f5eedb7.png https://cimg1.ibsrv.net/gimg/www.mia...b52e1fce72.png https://cimg2.ibsrv.net/gimg/www.mia...4642755ca6.png https://cimg3.ibsrv.net/gimg/www.mia...7813e4e2e8.png https://cimg4.ibsrv.net/gimg/www.mia...5c04f50cb8.png |
Motor just about done at Keegan. We skipped coatings in the motor to reduce costs a bit. Thermal management less critical on E85 anyway.
BP6D CNC head K1 rods ACL bearings Wiseco 83.5 9.0:1 pistons Fluidampr Supermiata 36-2 trigger wheel Boundary oil pump +7psi +1 O/S SS intake valves +2 O/S Inconel ex valves Supertech light double valve springs Balance reciprocating bits Circuit Sports oil pan baffle stock cams stock lifters. redline will probably be 7700 -10 & -6 AN bungs on oil pan for Radium oil separator and turbo drainback Kraken hotside EFR 6528, turbine housing and DP coated inside and out by Embee in Santa Ana Qmax reroute AMP EFI Maxspark IGN1A coils #7 NGK Ruthenium plugs (I think) The hotside already at Renderos, engine shortly. He needs it to build the custom 3" exhaust, fab the coolant hardlines coming from the back and a few other bits. We have run similar engines and made and easy 400whp at around 22-25psi, which is what we're targeting with this one. Hope the Walters AZ6 will hold up since we sold the Quaife (which I regret). It'll be interesting positioning the I/C and piping since there is no radiator in the way (its in the trunk). Which reminds me, I need to get a set of Moti's lowered engine mounts.. Still not likely to make Miata Reunion but I will say this.. it's still possible |
Just got an email from Maruha. Cams/Subs ready sooner than expected. So, yay, we get cams. Only other F/I BP we ever built with cams was the 300whp BP6D 1.9L, CNC head, big valves and prototype C30-74 Rotrex.
I remember the crazy torque that motor had despite being a "torqueless" centrifugal blower. Word on the street is that some are putting 300whp through Walters 5 spds so fingers crossed the all -the-bells-and-whistles AZ6 will handle 400whp. If not, we would either do a G-Force dog box or start scouring the interweb for another Quaife. The Maruha (Tomei) are 33mm base circle. OEM is 36mm. Anything past .370 (stock NB2 intake lift) required notching the lifter bores and clearancing the cam box. The smaller base circle allows .425 lift to fit a stock head. Duration is still relatively short. We have used these same cams in a bunch of N/A BP's and they deliver a great powerband without needing main bearing killing revs to make power. Woot. |
Somebody needs to do the QuickTime bellhousing and a 4 spd. Where are these bellhousings being used/sold?
https://www.holley.com/products/driv.../parts/RM-4097 |
Steel tho
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