OG Shark's Race Build

[ThunderMoose]

Originally Posted by evilspiritM3

Thanks! I have been looking for other E9x ST3 ratio data points. I expect to be in that hp neighborhood and around 3350-3400 with me in it (sedan). Looking at doing a slight detune if necessary based on weight.

What does getting to 8.1:1 look like? Stroker motor or extreme weight loss?

It's hard for M3's to compete with the Vette's in ST2 IMO but each region may have different level of drivers.

[evilspiritM3]

Originally Posted by ThunderMoose

It's hard for M3's to compete with the Vette's in ST2 IMO but each region may have different level of drivers.

Agree. ST3 feels like a more natural "sweet spot" for the E9x. Especially without dumping crazy $$ to compete with vettes, etc.

[PrimeBMW]

Originally Posted by OG Shark

Last time the car was on the dyno & scales it was 341 avg hp & ~ 3,300lbs with me in it - so ~ 9.7:1 lbs/hp. With modifiers I would need to be at 10.1:1 for ST3. Would be ~ 180lb add - so not a big deal but ST3 in this area is pretty dead right now while ST2 is fairly active. I think we can get this car close to the 8.1:1 that I would run in ST2 - so shooting for that.

Yeah wasn't a fan of the restrictor either. Also not a fan of the 3600lbs if you want to run a bbk - not sure being neutered that much & then being that heavy will make for a competitive car in T2.

If we do another race build it would only be an E92 M3 - otherwise I'll just go with a factory built race car. ST3 in NASA makes more sense for our purposes & can also easily transfer to something like WRL if we want to go that route. Since ST3 is pretty dead around here right now would have to travel a bit to run it too - but hoping to do that anyways next year.

Good luck with the engine - know you been waiting on that for awhile now.

I'm pretty close to the course record with my fully dress street car at 3800-3900lbs. I just don't know what that air restrictor will do.

[dparm]

OG Shark you could also double-up and run TT3 with us. We are constantly short people to win tires.

[OG Shark]

Originally Posted by evilspiritM3

Thanks! I have been looking for other E9x ST3 ratio data points. I expect to be in that hp neighborhood and around 3350-3400 with me in it (sedan). Looking at doing a slight detune if necessary based on weight.

What does getting to 8.1:1 look like? Stroker motor or extreme weight loss?

I’ll let you know if we get there

No stroker - don’t want to go there while competing with this car. Hoping to get a little hp bump - should have an idea how that will go here in the next few days. We have been focusing a lot on reducing and redistributing weight while the car was stripped too.

These cars are a lot of fun at the hp lbs you are targeting - you ought to have a blast with it

Originally Posted by ThunderMoose

It's hard for M3's to compete with the Vette's in ST2 IMO but each region may have different level of drivers.

Agree - will likely be an uphill battle but ought to be a lot of fun trying to keep up with them. Would rather lose with an M3 than win with a vette

Originally Posted by dparm

OG Shark you could also double-up and run TT3 with us. We are constantly short people to win tires.

Catch 22 - then you got to beat me to get those tires

That’s likely what we would end up doing though.

[dparm]

I'm not sure what your anticipated lap times are, but I suspect you will have no trouble beating me with a purpose-built race car. You'd just have stiff competition from ThunderMoose and XCUSE_M3.

[OG Shark]

Cams & headers are in and the cars is in prime dyno tuning trim

Going to mount our Aim MXG in place of the oem instrument cluster - but a full steering wheel blocks out a lot of info including the shift lights. Will at M-Technik has adapted an OMP ALU GT flat steering wheel to the KMP setup we have been running. Buttons are for comms, power button, MDM, and adding another for DSC. Will typically be running DSC off - but wanted the power & MDM controls within quick access just in case ever need to get the to them out on track. The wheel was designed to run a dash mounted in the center of the wheel but works very well in this setup too - absolutely love how it turned out.



Wraps - yeah, don't think I will ever take this on again... I tried my hand at it mainly as a time saver so we didn't have to give the car up for a few days right now getting ready for the next race. I have learned a couple of things as I have progressed through this experience. (1) did I mention I will never, ever do this again? And (2) best practice would probably be to have at least one person helping you... Not wanting to pull anyone away from putting the car back together I have been working on the wrap by myself. After nearly driving myself insane with frustration from wrinkles, bubbles, and freaking vinyl folding up a bit after the backing is removed and then sticking together in one very nice piece of abstract art and ruining the piece - in a stroke of genius I decided I'm going to piece it together. Yes you can see lines all over where the pieces overlap, yes you can see wrinkles, yes you can see bubbles... but you know what I really do not care at this point. I'm really going to use that 50ft rule to the full extent...

[SYT_Shadow]

I love the camo-style wrap! The steering wheel reminds me of the M4 GT4 one! sweet!

Good luck with the tuning!

[dparm]

I salute you for trying to wrap it yourself. From what several professionals have told me, there is a lot of nuance to it, especially for each car. You need to know the specific tricks for a given body panel.

[b4hand]

Originally Posted by OG Shark

(2) best practice would probably be to have at least one person helping you...

My man, I could've spent last Saturday helping you or something! We could've struggled together <3

[OG Shark]

Originally Posted by SYT_Shadow

I love the camo-style wrap! The steering wheel reminds me of the M4 GT4 one! sweet!

Good luck with the tuning!

Thanks! That style was my vision all along

Really like the wheel - bit smaller than the targa (310 vs 330) which I like. Also how my buddy mounted the paddles puts them in a better position for me.

Originally Posted by dparm

I salute you for trying to wrap it yourself. From what several professionals have told me, there is a lot of nuance to it, especially for each car. You need to know the specific tricks for a given body panel.

The best trick I learned was to make the time & pay the professionals to do it

Originally Posted by b4hand

My man, I could've spent last Saturday helping you or something! We could've struggled together <3

Ha yeah appreciate it - but I wouldn't wish that upon anyone!

[OG Shark]

Well here we go again - our version of Shop Rescue! Actually its in great shape, just needs a bit of polish here & there. The previous owner was big in the forced induction, miata, & racing worlds and set this place up great - I am very thankful & fortunate that he agreed to sell it to me. Plenty of shop space with electrical & air drops all over the place. Some office space too which can definitely make use of. Even a bit of a paint booth as well. Really looking forward to putting our touches on the building - just as excited as I am about the cars. Going to share a bit as it progresses - plan to do most of the work ourselves as I have a couple of really good friends that are going to help me Hopefully it turns out better than my wrap experience though

[DRLane]

Originally Posted by OG Shark

Well here we go again - our version of Shop Rescue! Actually its in great shape, just needs a bit of polish here & there. The previous owner was big in the forced induction, miata, & racing worlds and set this place up great - I am very thankful & fortunate that he agreed to sell it to me. Plenty of shop space with electrical & air drops all over the place. Some office space too which can definitely make use of. Even a bit of a paint booth as well. Really looking forward to putting our touches on the building - just as excited as I am about the cars. Going to share a bit as it progresses - plan to do most of the work ourselves as I have a couple of really good friends that are going to help me Hopefully it runs out better than my wrap experience though

[IMG]https://hosting.photobucket.com/imag...#38;fit=bounds[/IMG]

[IMG]https://hosting.photobucket.com/imag...#38;fit=bounds[/IMG]

[IMG]https://hosting.photobucket.com/imag...#38;fit=bounds[/IMG]

Was it always the intention to build out a race shop? Or is this the inevitable next step after repeat builds?

I guess I'm asking, should I start preparing my wife

[OG Shark]

Originally Posted by DRLane

Was it always the intention to build out a race shop? Or is this the inevitable next step after repeat builds?

I guess I'm asking, should I start preparing my wife

The way I look at it one should always be preparing your wife for stuff like this no matter if you think its going to happen or not - that's like pre-engagement appropriate material right there

[OG Shark]

So far so good with the cams & headers. First dyno pulls today -

Think there is a bit more left in it too. Still need to get the tune sorted out & some more when we get our intake on it.

Also got on the scales today. This was sans carbon fiber hood & doors, polycarbonate windows, & the boat anchor that is the oem trunk - so I expect about another 80lbs in full race trim. Plus the driver - who isn't keeping up his end of the bargain on the weight shedding program



Balance is a little wonky still. The trunk should help bring some weight bias more towards the rear. Also we still have the oil & trans coolers in the oem location - when we move them to the rear that should help as well. All in all being sub 3k (or very close to it) with decent balance looks attainable.

Going to start testing on Friday, very ready to get back out on the track.

[tsk94]

Originally Posted by OG Shark

So far so good with the cams & headers. First dyno pulls today -

Think there is a bit more left in it too. Still need to get the tune sorted out & some more when we get our intake on it.

Also got on the scales today. This was sans carbon fiber hood & doors, polycarbonate windows, & the boat anchor that is the oem trunk - so I expect about another 80lbs in full race trim. Plus the driver - who isn't keeping up his end of the bargain on the weight shedding program



Balance is a little wonky still. The trunk should help bring some weight bias more towards the rear. Also we still have the oil & trans coolers in the oem location - when we move them to the rear that should help as well. All in all being sub 3k (or very close to it) with decent balance looks attainable.

Going to start testing on Friday, very ready to get back out on the track.

420whp NA sounds good!!

[OG Shark]

Also big thanks to SYT_Shadow for all the help with the cams!

[DRLane]

This project is going crush the 2:24 COTA goal. What's the new target?

[OG Shark]

Originally Posted by DRLane

This project is going crush the 2:24 COTA goal. What's the new target?

Sub 2:20...

Not sure if we can get there - but sure going to give it a good shot. Think once we finish off the rest of the build we should be close though. Then we can concentrate on setup and getting everything dialed in finally - never been out there more than once with the same build as the time before.

[//steve\\]

I love all of this!

Who is doing the tuning?

[dogbone]

Fantastic stuff! Congrats on the shop! Can't wait to see how the build out goes. Looks like you got plenty of space to cause some real trouble!

[OG Shark]

Originally Posted by //steve\\

I love all of this!

Who is doing the tuning?

Still working through the tuning - been a bit of a struggle...

Originally Posted by dogbone

Fantastic stuff! Congrats on the shop! Can't wait to see how the build out goes. Looks like you got plenty of space to cause some real trouble!

Ha thanks! I forgot to tell you about the private runway right by the new shop. I'm sure we will never, ever, sneak on to that