MRG MotorSports 818S Build

[flynntuna]

Very cool, thanks for posting.the look from the rear is the look I'd like to have.

[Frank818]

Rear hatch open is great, except our the bumper does not open.

1700lbs and 680hp. Well guys I guess we bought the wrong car, eh? loll
The sound of that small 1.8L is quite interesting! I bet it's even better in person.

[STiPWRD]

Cool video, you can tell some serious coin has been spent on this thing. Overall it looks and sounds great.

[Frank818]

Just watched it again. Excellent video. You already post excellent vids, Bob.

I am thinking of opening the bottom rear bumper the same way. Nice look.

So that's how it looks like driving in LA? Where do I live again? Damn.

[Mechie3]

Very cool! I've actually spent considerable time looking up rear lights. I came up with Exige ($$$$) or some Hellas ($$$). Exige are easy to get, but expensive, the Hellas are hard to get but cheaper. I like the exhaust location, not sold on the shape.

[Frank818]

What? You will offer those rear lights? I've always wanted something like the GTM in LED format. Or those above!
Tell us more!

Only problem is the 818 has its lights in an angled line, the middle ones are higher and smaller than the ones on the outside.

[Mechie3]

Its not my photo. It would require redoing the bumper area, maybe with a replaceable light mount section. One of vraptor works gtms has those led lights.

[FFR-ADV]

Very cool! I've actually spent considerable time looking up rear lights. I came up with Exige ($$$$) or some Hellas ($$$). Exige are easy to get, but expensive, the Hellas are hard to get but cheaper. I like the exhaust location, not sold on the shape.

Are those Hellas a drop in upgrade / replacement for the FFR rear lights? I imagine that would look great with the new hardtop (once we get to see it).

The AWIC kits are looking great!

Have a nice vacation Craig!

[Bob_n_Cincy]

Craig's intercooler system installed.

60 degree turbo compressor clocking bracket
P1050183.jpg

P1050184.jpg

P1050185.jpg

Turbo and front intercooler bracket installed
P1050186.jpg

P1050187.jpg

P1050188.jpg


Piping and intercooler installed.
P1050189.jpg

I added the port on the driver side of the awic to automatically bleed air to a small reservoir in the hump.
P1050190.jpg

P1050191.jpg
I added an 1/8 NPT port for AIT sensor
P1050192.jpg

[Bob_n_Cincy]

A couple more pictures

I used the stock blow off valve mounted to the awic
P1050194.jpg

P1050193.jpg

[Bob_n_Cincy]

Has anybody used an Accusump yet?
Where is the suggest connection port for the Accusump?
What is the consensus on the Subaru forums about using an Accusump?
Bob

[Hindsight]

Everything I have read is good. The only limitation is that they are a backup type device and will only provide pressure for seconds. In a road race course with a lot of high speed sweepers, it might not be enough.

What IAT did you find in1/8"? All the ones I found were 3/8 which is huge.

[Bob_n_Cincy]

Everything I have read is good. The only limitation is that they are a backup type device and will only provide pressure for seconds. In a road race course with a lot of high speed sweepers, it might not be enough.
What IAT did you find in1/8"? All the ones I found were 3/8 which is huge.

The accusump will give me about twice the reserve oil than I have now. With a couple extra qts of oil in the engine, it hard to imagine the pan going dry.

The drysump system cost more than my 90k engine at this point. I'm going to run 230hp in 2015, then maybe bump up to 300 with a new turbo in 2016. I will be datalogging full time, so if I see an oil problem at autocross or track days. I will have to rethink my decisions.

A silly coarse designer put a 540 degree turn in an autox coarse this past summer. My impreza was having fuel starvation problems every time through.


Sponaugle suggested a thermal couple, part# TC-K-18NPT-E-72

http://www.omega.com/googlebase/prod...W6QaAkIS8P8HAQ

You also need this little circuit board to convert thermal couple voltage

http://www.adafruit.com/products/1778

Bob

[Bob_n_Cincy]

To all the Patriots fans, your welcome.
untitled.jpg

[RM1SepEx]

To all the Patriots fans, your welcome.
untitled.jpg

Thanks!

[flynntuna]

It's a good game when a Manning loses
But... It's San Diego's year.

[jayguy]

Nope, Seahawks for the repeat!

[07FIREBLADE]

That's not gonna happen Seahawks are going down...

[Frank818]

And the fight begins.

[Bob_n_Cincy]

Happy New Year.
I'm working on my side shift transmission.
Can anybody give me some advice on drilling and taping the shifting shaft that comes out of the back of the transmission.
I tried today and found the metal to be very hard.
Thanks
Bob

[Quiny]

Are you doing it with it mounted in the transmission? I did mine with it removed. I cut then drilled the spring-pin hole using a v-block with a vice on a drill press. The shaft didn't appear to be hardened and drilled pretty easy. I gained about 3/4" of clearance, the shaft would have hit the rear fiberglass if I didn't shorten it. I didn't need to but it helps to file a small flat spot to get the bit started.

[Bob_n_Cincy]

Are you doing it with it mounted in the transmission? I did mine with it removed. I cut then drilled the spring-pin hole using a v-block with a vice on a drill press. The shaft didn't appear to be hardened and drilled pretty easy. I gained about 3/4" of clearance, the shaft would have hit the rear fiberglass if I didn't shorten it. I didn't need to but it helps to file a small flat spot to get the bit started.

Hi quiny
I'm drilling and tapping right into the tee.
Bob

$(KGrHqJ,!loE-39DRjLcBP4mI6enew~~60_57.jpg

[Mechie3]

The tee could possible be hardened. Hardened metals will dull steel bits almost instantly. You'd need to use carbide. Tapping could prove difficult as well.

[Bob_n_Cincy]

The tee could possible be hardened. Hardened metals will dull steel bits almost instantly. You'd need to use carbide. Tapping could prove difficult as well.

I experienced "dull steel bits almost instantly" today.
I can go with a tougher drill bit. Any suggestions for a tap. (3/8-24)
Bob

[Tamra]

We picked up a Drill Doctor (drill bit sharpener) that has helped us a lot. Drilling and riveting all the panels puts some wear the drill bits pretty fast. We are going to be tackling the same task as you soon too.

[Bob_n_Cincy]

I'm about to reassembly my transmission.
What is the consensus on the best fluids for the MT5 transmission?
Thanks
Bob

[Harley818]

Hi Bob,

I found this on the Impreza forum....... I'll be using Uncle Scotty's Cocktail.

The Subaru 5MT can be a picky about what fluid you should use. Popular fluids that have a large fan base are:

a. OEM fluid AKA Subaru Extra-S
b. Uncle Scotty's Cocktail of 1qt Redline lightweight shockproof, 1qt Pennzoil or GM Synchromesh, 2qt Castrol HypoyC 80w-90
c. Redline lightweight shockproof
d. Motul 300

[metalmaker12]

I'm about to reassembly my transmission.
What is the consensus on the best fluids for the MT5 transmission?
Thanks
Bob

Motul is all I use. The LSD gear oil works really well if you have an LSD. It is race proven to be the very best one available.

[STiPWRD]

I use 3 quarts of redline lightweight shockproof and top it off with Motul 300. Shifting is like butter.

[Tamra]

Uncle Scotty's cocktail specifically calls for the Redline HEAVYWEIGHT shockproof, not the lightweight.

Here's the full instructions for those interested:

http://forums.nasioc.com/forums/showthread.php?t=920674

We are doing the cocktail for now. Seems like there are a lot of mixed reviews about what is best, but people seem pretty happy with either option for the 5spd transmissions. For simplicity sake, we'll likely switch to the Subaru Extra S next.

[C.Plavan]

I use Swepco 201. It's more than race proven. It's ChadProof. Works great in the Subi, I have been using it for decades in the Porsches (Race and Street).

No need for Extra S, that was made for the STI 6 Speed for the triple ring syncro because guys were having problems shifting. It didn't come out until 2006.

End of the day, it's a gear driven diff. Diff doesn't care what you use as long as it offers good protection to the gear faces. Use what you like the shifting on and just change it every 4-6 race weekends.

[Ellimist]

Hi Bob,

I found this on the Impreza forum....... I'll be using Uncle Scotty's Cocktail.

The Subaru 5MT can be a picky about what fluid you should use. Popular fluids that have a large fan base are:

a. OEM fluid AKA Subaru Extra-S
b. Uncle Scotty's Cocktail of 1qt Redline lightweight shockproof, 1qt Pennzoil or GM Synchromesh, 2qt Castrol HypoyC 80w-90
c. Redline lightweight shockproof
d. Motul 300

Looking at it from a price perspective (below), looks like d's the most expensive - that means it's best right? . All are based on 4qt for 1-to-1 comparison, but granted this was based on quick google searches and better deals may exist....
a.4qt of Subaru Extra-S @ $13.75/qt = $55
b. Total = $48.92 (w/ Pennzoil) to $52.30 (w/ GM)
1qt Redline HEAVYWEIGHT shockproof @ $17.95/qt = $17.95
1qt Pennzoil Synchromesh @ $12.99/qt = $12.99
or 1qt GM Synchromesh @ $16.37/qt = $16.37
2qt Castrol HypoyC 80w-90 @ $8.99/qt = $17.98
c. 4qt Redline lightweight shockproof @ $17.95/qt = $71.80
d. 4L Motul 300 @ $22.99/L = $91.96

The LSD gear oil works really well if you have an LSD. It is race proven to be the very best one available.

Metal, which LSD gear oil are you referring to? Sorry, I'm a newb.

[Bob_n_Cincy]

Thanks everyone for the suggestions on the Transmission gear oil.
The Engineer in me says to stay away form the cocktail.
Sounds to much like mixing green and orange antifreeze and getting ugly brown.

Thanks Again
Bob

[Mechie3]

There was a writeup on Scotty's cocktail once. Don't remember all of it but it summarized that it wasn't good to mix fluids and that there was a single element of it (motul?) that was mostly responsible for it working as well as it did.

[metalmaker12]

Looking at it from a price perspective (below), looks like d's the most expensive - that means it's best right? . All are based on 4qt for 1-to-1 comparison, but granted this was based on quick google searches and better deals may exist....
a.4qt of Subaru Extra-S @ $13.75/qt = $55
b. Total = $48.92 (w/ Pennzoil) to $52.30 (w/ GM)
1qt Redline HEAVYWEIGHT shockproof @ $17.95/qt = $17.95
1qt Pennzoil Synchromesh @ $12.99/qt = $12.99
or 1qt GM Synchromesh @ $16.37/qt = $16.37
2qt Castrol HypoyC 80w-90 @ $8.99/qt = $17.98
c. 4qt Redline lightweight shockproof @ $17.95/qt = $71.80
d. 4L Motul 300 @ $22.99/L = $91.96


Metal, which LSD gear oil are you referring to? Sorry, I'm a newb.

Motul gear box 80w90 MoS2 reinforced image.jpg.
I have tried pretty much them all, and there all not motul. Plavens is good stuff also.

Also the Leno video is cool, that car is, but I like the look of the 818 more and when we put a different mil in this thing, (which I will do) than 680 will be available.

[Bob_n_Cincy]

Mike and I got some time in today mocking up our side shift transmission. As some might know, we plan to put our radiator against the rear bumper. To accomplish this, we need to get rid of the shaft and some of the transmission housing to make room.
We added a shaft to the existing shifting arm with a direct link for the forward reverse cable.For the rotate function we connected the cable through a bellcrank.

Looks like it's going to work.
Bob

[FFRSpec72]

Looking at it from a price perspective (below), looks like d's the most expensive - that means it's best right? . All are based on 4qt for 1-to-1 comparison, but granted this was based on quick google searches and better deals may exist....
d. 4L Motul 300 @ $22.99/L = $91.96

4L of Motul 300 can be had for about $60 shipped from Autoplicity

[Mechie3]

Bob, Any ideas yet as to how to seal the transmission?

[Bob_n_Cincy]

Bob, Any ideas yet as to how to seal the transmission?

I'm looking for some kind of boot/bellow.
I can have a custom one made. I would rather find something I mcgyver to fit.

Hole is 1"x2 with 1/2" shaft.
Need something like this:179.jpg

[Hindsight]

Looks like a clutch release arm boot.