MRG MotorSports 818S Build

[Frank818]

What size rotor?

[Bob_n_Cincy]

What size rotor?

I could have put bigger front rotors on, This was the biggest that had the emergency brake features.
Oh yea, My 16" wheels fit if I take the powder coat off the caliper.
Bob

rotor.jpg

[Bob_n_Cincy]

Michael and I did our fist 818 autocross today.
What a GREAT DAY IS WAS.

It was a test and tune so we just kept getting back in line. Our group had 3.5 hours of run time with runs about every 5 minutes. Between Michael and I we did about 40 runs.
New Big brakes work GREAT, Very balanced with no proportional valve.
No cooling system issues, Great Again,
We had an extra radiator fan on the intercooler. It only got warm, Maybe 100F. GREAT
All other systems working perfect.

Confirmed we have a transmission mount problem. OK, not so great.

Me 55 and Michael 17 had a day we will never forget.

[Bob_n_Cincy]

Here is a video of a typical run today.
For the last 2 season Mike and I have been driving a NA Impreza. Weight to power ratio of 20:1
The 818 today at 1600/225 = ~ 7:1 AWESOME

[Frank818]

Another awesome test, Mike. No sorry, Bob. What's the tranny mount issue?

[metalmaker12]

Michael and I did out fist 818 autocross today.
What a GREAT DAY IS WAS.

It was a test and tune so we just kept getting back in line. Our group had 3.5 hours of run time with runs about every 5 minutes. Between Michael and I we did about 40 runs.
New Big brakes work GREAT, Very balanced with no proportional valve.
No cooling system issues, Great Again,
We had an extra radiator fan on the intercooler. It only got warm, Maybe 100F. GREAT
All other systems working perfect.

Confirmed we have a transmission mount problem. OK, not so great.

Me 55 and Michael 17 had a day we will never forget.

It all changes with body on guys, especially the iat temps. Did you monitor the temps, do you have data on the ambient vs post IC etc. how much boost were you running? l
Looking good and glad you had fun!!

[Bob_n_Cincy]

It all changes with body on guys, especially the iat temps. Did you monitor the temps, do you have data on the ambient vs post IC etc. how much boost were you running? l
Looking good and glad you had fun!!

Hi Metal,
Unfortunately we did not have any data logging going on.
Just need to spend some time and figure out how to do it.
To avoid problem I just slapped a extra radiator fan on top of the intercooler.
I do plan to use AWIC going forward.
Ambient was in the 50s today. Intercool was not even getting warm. We were running 12 PSI stock boost TD04 (2004 FXT donor)
Bob

[Bob_n_Cincy]

Another awesome test, Mike. No sorry, Bob. What's the tranny mount issue?

The big round holes in my frame near the transmission mount are not big enough.
The hooks on the transmission mount slam the frame on each launch.
SAM_1054.jpg

[metalmaker12]

Hi Metal,
Unfortunately we did not have any data logging going on.
Just need to spend some time and figure out how to do it.
To avoid problem I just slapped a extra radiator fan on top of the intercooler.
I do plan to use AWIC going forward.
Ambient was in the 50s today. Intercool was not even getting warm. We were running 12 PSI stock boost TD04 (2004 FXT donor)
Bob

There's a few ways to log, tantrix cable to USB and test connectors to laptop and the Cobb unit along with the plx device logger etc.

[Bob_n_Cincy]

There's a few ways to log, tantrix cable to USB and test connectors to laptop and the Cobb unit along with the plx device logger etc.

Thanks Metal
I was going to go open-source. But after talking with TIC last week about some of the changes I had in mind. They are saying I need to go to Accessport.
Bob

[Jeff Kleiner]

Awesome guys!

We've got the last fun event of the season at Walesboro on 11/2. Just saying...

Jeff

[wallace18]

Super Job! Congrats!

[Bob_n_Cincy]

Awesome guys!

We've got the last fun event of the season at Walesboro on 11/2. Just saying...

Jeff

Hey Jeff, we always have a good time at Walesboro, great group of people.
We will try and make it. It might be our last chance to do any testing before winter shuts us down.
Bob

[Bob_n_Cincy]

Nothing special, I just thought this was a cool picture from yesterday's autocross.

[Bob_n_Cincy]

A couple of people have asked how many times we spun out.
One each in a total of 40 runs. It was pretty quick, once it started to go, I was not fast enough to catch it.

[svanlare]

Great test run, and glad that things are working so well on the shakedown. The ground shot is quite nice btw

[Doowop]

great video Bob!
is it me or it seems that the Kirkley seats are really tight in the 818. They even seem to be overlapping in the middle?

[Bob_n_Cincy]

great video Bob!
is it me or it seems that the Kirkley seats are really tight in the 818. They even seem to be overlapping in the middle?

We are using the KIR-47900 Seat, Aluminum, Intermediate Road Race, 15 Degree Layback, 18 in. Hip Width, Each

They have 3 widths. This is the largest. Michael and I are both 250+
Yes the touch and hang over the frame on the outside.
No problem making them work.
Bob

[Bob_n_Cincy]

This is our November Hot List now that GO KART Testing is complete.
Our nest big goal is to get it registered.

Install Emergency brake
Clean up dash wiring
Wire Horns, Temp & brake fluid sensor
Mount rear Fire wall and cockpit aluminum panels
modify seat & Mount seats
Install side shift transmission
adjust ride height with passengers
Mount body
Wire lights
GET CAR REGISTERED
remove engine
New Engine mounts
Fix water pump Add oil cooler
add accusump
add awic
Change Oil Pan
install Engine

Looking at this list I have one question that come to mind. I looking for a fastener to mount the body to the under side of the frame. I will put 1/4-20 rivnuts in the frame. I want screws and washers that are not very thick. They also must be able to be removed easily after scraping the ground. What are others using?
Bob

[rangerbay]

Went to bigger rear brake. Using front calipers on all four wheels. H6 rotor, drilling and grinding to mount the bracket. Brake pad modification also. I maintained the parking Brake. Sorry Rasmus this one is heavier.

Does anyone want to trade me for some matching red shocks?
Bob

Try saying that "matching red shocks" 3 times real fast!

[RM1SepEx]

Bob, I'm using ss button head with washer 10-24s and riv nuts to hold the body on. I use them on my kart and they get beat up too. You can always drill the head out if they get too beat up and then spin the threaded portion out or drill out and replace the riv nut. http://www.mcmaster.com/#socket-head-cap-screws/=udi2d5

[thall818]

Bob, check these out as a possible solution.

Heads are only .11" on these - http://www.mcmaster.com/#90015a410/=udp4ct

[Bob_n_Cincy]

Thanks
Dan and thall818
I can't decide, I have already scrapped the bottom of the car 4 or 5 time in go kart mode.
I am thinking about an 1/8" x 3/4" alum. wear strip on the bottom of the car with counter sunk hole in it for some flat head screws.
What do you think of that idea?
Bob

[Jaime]

These are 0.090.

Technical detail here.

[Bob_n_Cincy]

A little of topic, But the movie comes out next week. Some from our company went to the premier in Hollywood.
Our bike was parked on Anthony Hopkins star. He was the star of the movie "The World's Fastest Indian"
We were very happy with the amount of screen time we got.

[RM1SepEx]

Bob what is your ride height? I have the CF rocker extensions, they will drag first...

[Boog]

Could you use these and have the entire head of of a low profile button head screw sitting below the surface?
http://www.mcmaster.com/#92856a101/=udsjhn

[Bob_n_Cincy]

Bob what is your ride height? I have the CF rocker extensions, they will drag first...

Hi Dan
I started at 4.5" but the car has settled to Just below 4". I have the CF rockers also.
It is going to be tough to keep them nice.
Bob

[Frank818]

Bob, at under 4" could be tough to keep the front splitter nice too.

[RM1SepEx]

I live in Maine, I'm going to crank it up to 5 inches...

[MrDude_1]

I live in Maine, I'm going to crank it up to 5 inches...

Winter is almost here... I say you crank down the front to a half inch and offer a splitter plowing service.

[Bob_n_Cincy]

Winter is almost here... I say you crank down the front to a half inch and offer a splitter plowing service.

I'm Ready for winter,

[RM1SepEx]

juggling motorcycles and Miatas all morning, plow is on truck but blower isn't on the old JD318

[Bob_n_Cincy]

Awesome guys!

We've got the last fun event of the season at Walesboro on 11/2. Just saying...

Jeff

Hey Jeff,
See you tomorrow,
Still going to be in go kart mode with 4 205 federal tires. (loose)
Last autocross, I was unable to get any heat in them.
Any other FFR cars going to be there?
Bob & Mike

[Bob_n_Cincy]

With the engine at fast idle and the back wheels in the air, I let the clutch out quickly. You can see how much movement I got.

[C.Plavan]

With the engine at fast idle and the back wheels in the air, I let the clutch out quickly. You can see how much movement I got.

Jeez- What mounts?

[Bob_n_Cincy]

Chad
That is an 10 year old OEM transmission mount.

Here is the same video in 4x slow motion. You can really see the transmission pounding on the frame.

[RM1SepEx]

The original FFR videos showed tons of movement all over withstovk mounts and no upper trans strut... It's amazing how much it moves

Old and soft stock ones are useless. I went Cusco https://www.google.com/search?q=cusc...nt%3B900%3B600

[Mechie3]

Stock motor and transmission?

[Bob_n_Cincy]

Stock motor and transmission?

Engine out of 04 FXT
Trans out of a 06 NA impreza
All stock mounts

Now I know why Subaru has a pitch stop.
It seems to me that the group N or the Cusco are both pricey for what you get.

Hey craig, I'll be auto crossing it at Walesboro today, how close are you.
Bob