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Meet the Ogre....EFR6758 purpose built rase car.
Wanted to share another EFR success story. Just finished up on the dyno this morning and will be running the first event this weekend. Here are some specs and a few pictures. You can see many more pictures here if interested: FP Miata ? Slambert Performance Engineering
Rusty beyond repair 2004 MSM and clean southern rust free 1999 tub are the donor vehicles for this build. Purpose: Autocross (some track days here and there), specifically built for FP (F Prepared) Weight: 2058 without ballast, but has to be ballasted up to 2206. Engine: Typical boost motor with a few exceptions... MSM Head and Block 11:1 Pistons Ported Head +1 intake, +2 exhaust TSE manifold EFR6758 Custom 3in downpipe and 3in exhaust Gutted MSM intake manifold Skunk2 64mm Throttle Body Customer V-mount intercooler/radiator (FD RX7 components) Power: Dyno below (400/349) is at 21psi and is the final pull. We did have one previous pull that crept up to 22.8psi and put down 411/358, but it was early in the tuning session and was not a curve worth displaying. E85 Chassis: Custom cage Delrin bushing througout Xidas Electric (adjustable) power steering - GM retrofit. Depowered rack Swaybars and spring rates TBD. I have a starting point, but I'm sure that will change. 15x10 6ULs with 275 or 295 A7 (or Hoosier/Avon slicks) - Pictures are 15x9s with 245s for the street/rain/etc Driveline: Stock MSM 6spd ACT clutch / flywheel Stock 4.1 torsen diff out of MSM Still a lot of work to do before I would consider it a finished product, but wanted to share what I have so far. https://cimg4.ibsrv.net/gimg/www.mia...9e1c50131d.jpg https://cimg1.ibsrv.net/gimg/www.mia...e8dec00940.jpg https://cimg6.ibsrv.net/gimg/www.mia...4e7e781505.jpg https://cimg8.ibsrv.net/gimg/www.mia...38cb4848a2.jpg https://cimg4.ibsrv.net/gimg/www.mia...9f83931c90.jpg https://cimg5.ibsrv.net/gimg/www.mia...dfab4f996e.jpg https://cimg3.ibsrv.net/gimg/www.mia...a076e11a1b.jpg |
Originally Posted by fourwhls
(Post 1402641)
Engine:
Typical boost motor with a few exceptions... MSM Head and Block 11:1 Pistons Ported Head +1 intake, +2 exhaust TSE manifold EFR6758 Custom 3in downpipe and 3in exhaust Gutted MSM intake manifold Skunk2 64mm Throttle Body Customer V-mount intercooler/radiator (FD RX7 components) Power: Dyno below (400/349) is at 21psi and is the final pull. We did have one previous pull that crept up to 22.8psi and put down 411/368, but it was early in the tuning session and was not a curve worth displaying. E85 Dyno pull starts at 2600rpm and the fucker still makes 200ft.lbs by 3100rpm, on a Mustang dyno. If that's not response and low-end power, I don't know what is. Fucking wild. :likecat::likecat::likecat: |
Originally Posted by Savington
(Post 1402645)
349tq at 21psi and 368tq at 23psi indicates that the turbo is still totally happy in that boost range.
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Epic. Just makes me want my 6758 up and running even more.
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This..............is glorious :likecat:
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Wow, 11:1 and 20+ psi. E85 is magic stuff. Are you willing to share anything about how much timing you're running? Is it a Megasquirt?
--Ian |
I can picture colipto salivating over this thread.
Originally Posted by Savington
(Post 1402645)
I love it. 349tq at 21psi and 368tq at 23psi indicates that the turbo is still totally happy in that boost range. An intake manifold would probably be worth a lot, since you found 19ft.lbs but only 11whp.
Dyno pull starts at 2600rpm and the fucker still makes 200ft.lbs by 3100rpm, on a Mustang dyno. If that's not response and low-end power, I don't know what is. Fucking wild. :likecat::likecat::likecat: |
On an autocross car, he's got the perfect setup. On a road race car, I'd expect a Squaretop to be worth 10-15whp on top, more above 6500rpm. With the 5A cam in that car, it should carry better than that, but the IM restricts it.
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Come over and play with us at Putman and Grissom this summer 👍
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Originally Posted by fourwhls
(Post 1402641)
Electric (adjustable) power steering - GM retrofit.
Depowered rack |
His Facebook and fprod build thread on here talk about it. It's custom, from a Cruze or something weird. And a guy makes a controller for it. I can link when on a comp.
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Quite impressive overall power and power curve. It makes me wonder what's possible with similar turbo, VVT and intake manifold.
Kitty for you! |
Originally Posted by aidandj
(Post 1402685)
His Facebook and fprod build thread on here talk about it. It's custom, from a Cruze or something weird. And a guy makes a controller for it. I can link when on a comp.
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Originally Posted by ThePass
(Post 1402684)
This bit piques my interest. Would love to know more.. make/model it's out of, any modification necessary, weight...?
^ link to controller
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Originally Posted by Savington
(Post 1402665)
On an autocross car, he's got the perfect setup. On a road race car, I'd expect a Squaretop to be worth 10-15whp on top, more above 6500rpm. With the 5A cam in that car, it should carry better than that, but the IM restricts it.
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Originally Posted by Chilicharger665
(Post 1402886)
VVT and a squaretop for the best of both worlds?
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Bench race all you want, but with a build like this he probably chose the parts he did with a reason.
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Sick Build!
Low weight, big power...My kind of car! Following! |
Originally Posted by aidandj
(Post 1402924)
Bench race all you want, but with a build like this he probably chose the parts he did with a reason.
Apologize for the derail though. Super excited to see how things play out for the OP. |
Got to drive this thing yesterday, it's a hoot. Shawn looks to have not mentioned that since he is running in FP, he has to run a 46MM restrictor on the inlet side of the turbo, which is why more boost didn't do much for him. Was very impressed with the feel of the Xidas and even the lateral grip of the VR1s, which did pretty well on a very loose surface.
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