|
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.
|
Epic. Just makes me want my 6758 up and running even more.
|
This..............is glorious :likecat:
|
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.
|
Come over and play with us at Putman and Grissom this summer 👍
|
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.
|
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.
|
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
|
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.
|
Originally Posted by Chilicharger665
(Post 1402886)
VVT and a squaretop for the best of both worlds?
|
Bench race all you want, but with a build like this he probably chose the parts he did with a reason.
|
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.
|
Well that's a pretty important thing to leave out lol
Which makes his plot even more impressive :) And probably why it nosedives up top like that |
Originally Posted by ridethecliche
(Post 1402662)
I can picture colipto salivating over this thread.
How much increase would you expect with a squaretop here? Or would that be a silly option instead of just going for the modified honda intake?
Originally Posted by k24madness
(Post 1402722)
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 Chilicharger665
(Post 1402886)
VVT and a squaretop for the best of both worlds?
Originally Posted by ridethecliche
(Post 1402919)
You'd lose the msm intake cam then, but I think the VVT's gains are greater. I see what you're asking though re:using the squaretop to get upper end gains and using the vvt to prop up the midrange.
Originally Posted by boileralum
(Post 1403080)
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.
|
Originally Posted by aidandj
(Post 1403084)
I don't want to say I told you so but...
--Ian |
I was gonna post that in his thread :laugh:
|
lololol that dyno chart is with an inlet restrictor? Holy lol
|
<3 <3 <3
With those numbers, I feel as though my car is lacking. Time to get that knock sensor working and revisit the dyno. |
e85 is the secret ingredient here
|
Originally Posted by aidandj
(Post 1403084)
I don't want to say I told you so but...
:rofl: |
Thanks Rich!
The car is built to the FP rule set so I do have some limitations.
|
Originally Posted by codrus
(Post 1402658)
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 |
It's most likely the same.
|
Originally Posted by fourwhls
(Post 1404421)
It's running a Haltech Elite 1500. Timing is 15deg up top, but I don't know how that equates to Megasquirt timing.
|
Damn, I've been a slack ass and haven't updated this thread in a long time. I did quite a bit of work over the winter to make it a little faster and also look better.
Appearance Update: I bought an overfender kit from CarbonMiata.com. I was not a huge fan of their front bumper, so I chose to build my own front connection pieces to tie the flares to a stock bumper instead. This was both a great learning experience and a failure. I finally gave in and ordered the front bumper and connection pieces from CarbonMiata. The plugs I made to tie the flares into the stock bumper turned out pretty well. It was a lot of work and took several attempts to get it right, but I was pretty happy with the final product. The problem that made me pull the plug was when I started the fiberglass process. I put the gel coat over the plug and it ate right through the primer and into the foam of the plug. I didn't think the type of primer was that big of a factor, but indeed it was. I then hit the easy button and ordered the bumper/connection pieces. I will say, the fit and finish of the CarbonMiata kit was the best I've ever worked with. I've installed at least a half-dozen flares on various cars, and this was the best fitting kit I've ever worked with. I only had to massage one part to make it fit to my liking, the rest bolted on and mated up perfectly. https://static1.squarespace.com/stat...G?format=1000w https://static1.squarespace.com/stat...G?format=1000w https://static1.squarespace.com/stat...g?format=1000w After the kit was completely installed, I pulled it back off and started another process I've never done before, painting a car. This time I read the instructions thoroughly and made sure I used products that were compatible with each other. I ended up shooting it with a single stage paint over top of an epoxy primer. The paint and primer was PPG shop line and was very reasonable. It cost a little over $400 in materials. I used a Harbor Freight purple HVLP gun and it worked well. At $13 each, I bought 3 and just threw them away instead of cleaning after each use. I chose Viper Green which is a Porsche color that I originally saw on a GT3 RS. It's definitely not a show car, but it turned out pretty well. Will I ever do this again?....maybe, but definitely not in my garage. I'm going to be cleaning up green overspray for the next 2 years. https://static1.squarespace.com/stat...g?format=1000w https://static1.squarespace.com/stat...G?format=1000w https://static1.squarespace.com/stat...g?format=1000w https://static1.squarespace.com/stat...g?format=1000w https://static1.squarespace.com/stat...g?format=1000w https://static1.squarespace.com/stat...g?format=1000w https://static1.squarespace.com/stat...g?format=1000w https://static1.squarespace.com/stat...g?format=1000w https://static1.squarespace.com/stat...g?format=1000w https://static1.squarespace.com/stat...g?format=1000w |
Suspension / Tire-Wheel Update:
I decided to swap out the delrin bushings for spherical bearings. I created designs in CAD and sent the drawings out for quote. The prices weren't bad, but it ended up being about the same price for the Keisler Automation bearing. These were already proven and he had them in stock. I pulled my arms and sent them down to TN and in less than a week, I had them back in my hands with sphericals installed. https://isteam.wsimg.com/neb/obj/Nzc...rs=w:600,h:600 https://isteam.wsimg.com/neb/obj/Nzc...rs=w:600,h:600 https://static1.squarespace.com/stat...g?format=1000w Once I got the suspension installed again, I looked at the front sway bar and was really not happy with the stiction of it compared to the control arms. I'm using a hollow Racing Beat bar with the poly bushings that comes with them. Being the stubborn engineer that I am, I wanted something better and decided to design a set of custom bushings for this bar. I opted to use a polymer that is basically an oil impregnated delrin. It should provide the freed up movement that I want, and being oil impregnated, it shouldn't require much, if any, maintenance. I can't really give any feedback one these yet because they have only been on the car for a day. http://www.racingbeat.com/images/items/54106.1.jpg http://www.racingbeat.com/images/items/54106.2.jpg https://images.squarespace-cdn.com/c...QIGBHJ7V060WX/ https://images.squarespace-cdn.com/c...TUT524GDBFLVX/ Last year we ran 275 A7s on 15x10s, this year we are giving the 295s a shot. I opted to put them on 15x11s even though the 15x12s are likely the better option. The 11s require an additional 50lbs of ballast, going with the 12s will be another 50lbs pushing me over the 200lb of ballast mark. On the left is 275s on 10s, right is the new 295s on 11s. https://static1.squarespace.com/stat...G?format=1000w Stacked next to each other. https://static1.squarespace.com/stat...G?format=1000w |
I think you need a gendron bar to go with those spherical arms now. Its really crazy how going to real bearings on the sway bar increases front grip even with the same stiffness of bar.
|
You make a lot quicker progress than I do...
|
I've driven it. It's a HOOT.
Looks as good as it runs. I still want to do a drag race thing at one of the 5 events a year we run at drag strips. It would be cool to see how the different setup perform in a straight line. |
Originally Posted by Leafy
(Post 1528947)
I think you need a gendron bar to go with those spherical arms now. Its really crazy how going to real bearings on the sway bar increases front grip even with the same stiffness of bar.
|
This makes me feel things that mechanical things shouldn't make a person feel.
Also... Shrek is love, Shrek is life. |
| All times are GMT -4. The time now is 11:42 PM. |
© 2024 MH Sub I, LLC dba Internet Brands