ROAD RACING: Building a road race motor

[Slow old poop]

Good news for dsm'ers in the roadracing engine department. According to NASA's new TT points list we are no longer penalized for removing the balance shafts as a "internal engine modification", it's now a no point modification.

Mine are already out, but dig this:
Believe it or don't, but AutoMotorSport put one of the balance shafts BACK IN when they built my 2.3 stroker! It seems that they cut off the shaft, but leave the bearing and gear (or whatever), so as to reduce the load on the oil pump and drop the oil pressure from 120 psi back to normal settings. They also wanted to assess me a core charge for this, since my balance shafts are gone, but I bought two used ones for $10 each at a local race shop.

Anybody out there that does remove their balance shafts ought to be aware that yer oil pressure will shoot up (cuz the load is off). That's fine for drag racing, but 20 minutes of WOT on a road course at 120 psi blows oil filters (been there, done that twice). AMS recommends putting a clamp around the oil filter and tieing it off to a frame member to prevent the oil filter from loosening whilst road racing.

Rich

 

[mavisky]

Mine are already out, but dig this:
Believe it or don't, but AutoMotorSport put one of the balance shafts BACK IN when they built my 2.3 stroker! It seems that they cut off the shaft, but leave the bearing and gear (or whatever), so as to reduce the load on the oil pump and drop the oil pressure from 120 psi back to normal settings. They also wanted to assess me a core charge for this, since my balance shafts are gone, but I bought two used ones for $10 each at a local race shop.

Anybody out there that does remove their balance shafts ought to be aware that yer oil pressure will shoot up (cuz the load is off). That's fine for drag racing, but 20 minutes of WOT on a road course at 120 psi blows oil filters (been there, done that twice). AMS recommends putting a clamp around the oil filter and tieing it off to a frame member to prevent the oil filter from loosening whilst road racing.

Rich

I actually cut the weight off of the rear shaft, then tap it, and put a bolt in it to seal up. It's been in there for 5,000+ hard miles.

As for the oil pressure, that's not a bad idea, but I'd actually reccomend porting the passage to the oil pressure relief valve. I think they talk about it on vfaq.com as to how and where to remove material. This will help keep oil pressure closer to stock levels.

 

[Slow old poop]

I actually cut the weight off of the rear shaft, then tap it, and put a bolt in it to seal up. It's been in there for 5,000+ hard miles.

As for the oil pressure, that's not a bad idea, but I'd actually reccomend porting the passage to the oil pressure relief valve. I think they talk about it on vfaq.com as to how and where to remove material. This will help keep oil pressure closer to stock levels.

Did that after we blew the 2nd oil filter. It dropped the pressure from 120 to about 105 psi.

Rich

 

[mavisky]

Did that after we blew the 2nd oil filter. It dropped the pressure from 120 to about 105 psi.

Rich

I figured you had Rich

 

[Greg Collier]

Good to hear. Greg, got an update for us on the motor???

What a frigging roller coaster of a week I've had. We lost one of our main sponsers (who will remain nameless) and it looked like our 2006 season was down the toilet. My wife became irrate saying we are racing come hell or high water, and I don't care if we have to beg, borrow, or steal, but we're getting on the track!!

We also put Mitch of "Engintecs" through the ringer as he is sponsoring the build of our 2006 2.4 motor. (Sorry Mitch)

So the good news is we're back and ready to rock en roll I spoke with Mitch this morning (Sat) and he plans on going into "over-drive mode" to get the engine ready for testing in February (not much time). Slowboy is helping out with the parts for the built (thank you Mike)! Forced Performance has come on board and will be supplying the turbo for this bad boy. PWR want's the cooling rights to this power plant so the radiator will be their's. There's a lot of work that has to be done and only a month to do it... but this is what racing is all about!

We're going to do updates on the engine build with some photos, so stay tuned to the birth of a big horsepower and highly efficient DSM road racing motor

Greg

 

[mavisky]

What a frigging roller coaster of a week I've had. We lost one of our main sponsers (who will remain nameless) and it looked like our 2006 season was down the toilet. My wife became irrate saying we are racing come hell or high water, and I don't care if we have to beg, borrow, or steal, but we're getting on the track!!

We also put Mitch of "Engintecs" through the ringer as he is sponsoring the build of our 2006 2.4 motor. (Sorry Mitch)

So the good news is we're back and ready to rock en roll I spoke with Mitch this morning (Sat) and he plans on going into "over-drive mode" to get the engine ready for testing in February (not much time). Forced Performance has come on board and will be supplying the turbo for this bad boy. PWR want's the cooling rights to this power plant so the radiator will be their's. There's a lot of work that has to be done and only a month to do it... but this is what racing is all about!

We're going to do updates on the engine build with some photos, so stay tuned to the birth of a big horsepower and highly efficient DSM road racing motor

Greg

Awesome Greg. Any idea what turbo you'll be running from Ty and the boys down at FP? I'm running one of their dry housing 18g's and love it. Also shoot me a pm when you get a chance regarding that other sponsor we talked about. Glad to hear you'll be back in the running though

 

[Greg Collier]

Awesome Greg. Any idea what turbo you'll be running from Ty and the boys down at FP? I'm running one of their dry housing 18g's and love it. Also shoot me a pm when you get a chance regarding that other sponsor we talked about. Glad to hear you'll be back in the running though

Scot Gray and all the boys at RRE are recommending the FP3052 so that's the turbo of choice.

And thanks Kyle, it's good to be back. It was a hell of a depressing week I'm pretty lucky to have a woman that's so supportive of my obsession

Greg

 

[mavisky]

Scot Gray and all the boys at RRE are recommending the FP3052 so that's the turbo of choice.

And thanks Kyle, it's good to be back. It was a hell of a depressing week I'm pretty lucky to have a woman that's so supportive of my obsession

Greg

The FP3052 is one hell of a turbo, but you'll be dealing with alot more torque than what you've got now. It'll be great on those straightaways and the 2.4 should keep it honking on, but it'll also provide you with all sorts of new traction issues. You'll also need something larger than that upgraded sidemount to keep this badboy cool.

FP 3052 turbo info

 

[4wd-Eclipse]

subscribe

 

[Greg Collier]

The FP3052 is one hell of a turbo, but you'll be dealing with alot more torque than what you've got now. It'll be great on those straightaways and the 2.4 should keep it honking on, but it'll also provide you with all sorts of new traction issues. You'll also need something larger than that upgraded sidemount to keep this badboy cool.

FP 3052 turbo info

Boy Kyle, you make me dot all my "i's" and cross all my "t's" don't you Yes, as I've already stated we're going to have to go with a FMIC. I'm looking at the PTE (long and slim) that I'll mount high in the front valence at a 35 degree angle. This won't obscure air through the radiator and will get a solid flow from the front splitter, pushing the air upwards. I'm drawing up the design and will post it soon...

Greg

 

[mavisky]

Boy Kyle, you make me dot all my "i's" and cross all my "t's" don't you Yes, as I've already stated we're going to have to go with a FMIC. I'm looking at the PTE (long and slim) that I'll mount high in the front valence at a 35 degree angle. This won't obscure air through the radiator and will get a solid flow from the front splitter, pushing the air upwards. I'm drawing up the design and will post it soon...

Greg

Hey I know that Scott has his beliefs under control, but I want to make sure the hp boys over at FP aren't giving you too much turbo and restricting your cooling abilities. I can't live the dream yet, so I'm going to do what I can from 10 states away on the sidelines to make sure you have another set of eyes looking over the build up. It's amazing how easy it is to overlook the simple things that someone not on the front lines can notice from afar. I want to see you back on top of the podium this year buddy, us Fort Wayne guys have to stick together after all

 

[Slow old poop]

I'm pretty lucky to have a woman that's so supportive of my obsession Greg

I got one of them super supporting spouses too. We started with timing & scoring for SCCA, then she was my navigator when we ran TSD and pro rallies, and she now supports my racing effort. She don't like it much, but figures it's better than me going out drinking, carousing, bowling, fishing or killing Bambi. (Note that the last three "sports" are the only ones where alcohol improves performance. Or it seems to, based on how many men do just that. But I digress)

By the bye, I picked up my 2.3 short block from AutoMotorSports yesterday. The sales manager says he has the exact same engine in his DSM, and showed me a dyno chart that shows 625 at the wheels at 35 lb boost. I won't be running 35 lb of boost on a road course, but it's nice to know it's there if I want to tune it in. Arrrrr!!

Rich

 

[Greg Collier]

Hey I know that Scott has his beliefs under control, but I want to make sure the hp boys over at FP aren't giving you too much turbo and restricting your cooling abilities. I can't live the dream yet, so I'm going to do what I can from 10 states away on the sidelines to make sure you have another set of eyes looking over the build up. It's amazing how easy it is to overlook the simple things that someone not on the front lines can notice from afar. I want to see you back on top of the podium this year buddy, us Fort Wayne guys have to stick together after all

Just to let you know, this was all taken in to consideration prior to the design of the build. I for one am very aware of the cooling issues with all the DNF's I've had over the years. And most definitely you better be watching out for my best interest, we're all in this together... and I'm damn proud of it

Fort Wayne rules!!

 

[Greg Collier]

I got one of them super supporting spouses too. We started with timing & scoring for SCCA, then she was my navigator when we ran TSD and pro rallies, and she now supports my racing effort. She don't like it much, but figures it's better than me going out drinking, carousing, bowling, fishing or killing Bambi. (Note that the last three "sports" are the only ones where alcohol improves performance. Or it seems to, based on how many men do just that. But I digress)

By the bye, I picked up my 2.3 short block from AutoMotorSports yesterday. The sales manager says he has the exact same engine in his DSM, and showed me a dyno chart that shows 625 at the wheels at 35 lb boost. I won't be running 35 lb of boost on a road course, but it's nice to know it's there if I want to tune it in. Arrrrr!!

Rich

Man, that's awesome Rich! 625 at the wheels will definitely take care of the job. I just want a consistant 450 to get the job done. You're gonna have to put wings on your car. And yes I do have a good counterpart... I don't think she had any idea of what she was getting into, but she's definitely coming through with flying colors

Greg

 

[mavisky]

Mine's supportive to a point, I just have to watch spending too much time in the garage and not enough time with her. It's easy to do with her still going to school and working and me working 11am-8:30pm.

 

[Zero Bar]

That's good to hear Greg, sounds like it's coming together for you. Man I hope I can find some sponsorship for my car, I know what I need to do and I know I have the skills, I just need the money to get the car ready.

 

[Slapnut]

Just wondering if you guys where talking about road america in Wisconsin? If so, i am gonna take the steel plate off my door and come out to that. I wanna run against greg... but he can't run high boost btw greg i have jdm n/t power now

 

[Greg Collier]

Just wondering if you guys where talking about road america in Wisconsin? If so, i am gonna take the steel plate off my door and come out to that. I wanna run against greg... but he can't run high boost btw greg i have jdm n/t power now

No turbo We'll see about my mid-west run