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dyintorace
dyintorace Dork
5/19/09 7:40 p.m.

I just posted this in Reader's Rides, but wanted to introduce it here too.

It's time to introduce my new project. It was originally intended to be a $2009 Challenge car. That plan morphed into a 2009 UTCC entrant. Given the approaching event date and my general lack of wrenching skills, it has now simply become a dedicated track car project.

It started with an LS1 FC RX-7 project that popped up on Craigslist - Daytona Beach. The supposed story is that the motor came from the owner's former Camaro, which he blew up while drag racing. When that happened, he decided to pull the motor, rebuilding it and put it into an FC RX-7 under the assumption that it would make a better drag car. He plumbed it for a 200 shot of NOS and added a built TH400 transmission. He made it about halfway through the project (motor and tranny installed with a Granny's kit) when he got his girlfriend pregnant and needed $$$.

The ad listed a purchase price of $1800 (it wasn't running) and he wanted to sell fast. I talked him down to $1k over the phone and enlisted fellow GRM'er Mr. Joshua to make a banzai run one night to go pick it up.

Once we got it home, we determined that the chassis was pretty beat up, but the motor looked okay. The notion of the $2009 Challenge came and went, mainly because my wife was tired of me building Challenge cars, only to sell them and start over. My goal all along with the Challenge was to end up with a track car, but that hasn’t happened, so I could not fault her logic. The next thought was the 2009 UTCC, because it is not budget limited and I love VIR. I am going to miss that goal though, due to time constraints.

After deciding that this chassis was not the ideal candidate, we pulled the motor/transmission and I started parting out that car. I then found another FC on Craigslist, this one in Orlando. My wife was thrilled when I told her that our romantic getaway in Orlando included ferrying down an empty tow dolly behind Osterkraut’s F-150 and dragging home yet another non-running car! This FC chassis was in much better shape and was also a failed V8 swap, albeit with no engine! Some nice things about it include a non-powered rack, a 4 point roll bar, battery relocate kit and stripped interior.

Fast forward to current status. As noted on the board, the rat poo filled chassis is now in the garage. I have pulled the remaining interior and cleaned it. I bought a used ISC racing coilover set up with camber/caster plates included. Once I get the car up on jack stands, I’m going to pull the stock suspension and put the coilovers on. I bought some 15x10 Aero racing wheels from Mr. Joshua and plan on running 275/35/15 all around, presumably after going to flared fenders up front.

I took the motor to Rollins Automotive, a local drag shop with a good reputation and Chevy experience. I asked them to pull the motor apart and determine exactly how ‘built’ it is. Turns out that it is fairly stock but does have nice forged pistons, Corvette heads and mainfolds, uprated valvesprings and a mild cam. Not exactly ‘built’, but still a great purchase at $1k, especially including the transmission and chassis. The NOS set up has already been pulled.

My plan for the motor is a higher than stock compression build, with ported heads (or aftermarket), a super aggressive cam and long tube headers. I am also going to replace the pushrods, rod bolts and oil pump with better aftermarket units, as each appears to be a weak area within the LSx family. From my research, that set up should put out 450rwhp reliably. I also found a low mileage T-56 and plan to use that in place of the built TH400.

As noted, the interior of the car is stripped already. A friend gave me a cheap race seat to start with and I have 5 point harnesses ready to go in. I think I can get down to 2500lbs without too much surgery, especially if I go with a T-II aluminum hood and fiberglass front fenders. I may end up with Lexan for side windows and the hatch to carve more weight out.

My hope is that progress picks up now that there is some momentum. I am still learning quite a bit about LS motors, the FC chassis and swapping an LS into an FC. If anyone has any experience, advice, etc, I am all ears!

Tom Heath
Tom Heath Production Editor
5/19/09 7:56 p.m.

Wow. You weren't kidding.

dyintorace
dyintorace Dork
5/19/09 8:01 p.m.

Nope...just wish I had started sooner. This car would be the perfect JV UTCC candidate.

MrJoshua
MrJoshua SuperDork
5/19/09 8:05 p.m.

I wondered where Imelda Marcos had gone. She is apparently living in your garage.

ignorant
ignorant SuperDork
5/19/09 8:06 p.m.

score

cwh
cwh Dork
5/19/09 8:06 p.m.

Dayamm, there is a LOT of room in that engine bay!

dyintorace
dyintorace Dork
5/19/09 8:10 p.m.
MrJoshua wrote: I wondered where Imelda Marcos had gone. She is apparently living in your garage.

Yes...I like to keep old running shoes! Throw in road bike shoes, mtn bike shoes, the same for Ericka and it adds up.

P71
P71 Dork
5/19/09 8:16 p.m.

Is that a 10th Anny Turbo II? Those wheels are worth some bucks! Man you got the steal of the century going on here, I'm jealous! Josh (josk18_2k) on rotarycarclub.com and/or rx7club.com built one that is a local autocross terror. He's always happy to talk about his car. He managed 285's up front, but on 17 or 18 Enkei RPF1's using flared fiberglass fenders.

As an aside, I've driven his car quite a bit. It's a hardtop S4 FC GXL car with a completely stock 320RWHP LS1/T56, Tein coilovers, and a full interior. It did 12.4@117 in the 1/4 on Advan's that were way too short and a weak 3rd Gear. With the freshly rebuilt trans he has now and some taller drag tires it will do 11's easy. It has also FTD'd against some very, very fast local guys in autocross. We're doing a 3-day track event with it in 2 weeks.

MrJoshua
MrJoshua SuperDork
5/19/09 8:31 p.m.
cwh wrote: Dayamm, there is a LOT of room in that engine bay!

Mazda did a really good job of strapping lots of stuff to a tiny engine to fill that bay. Put headers and a big weber 2 barrel on a 13B and it looks like someone forgot to put an engine in.

MrJoshua
MrJoshua SuperDork
5/19/09 8:32 p.m.
dyintorace wrote: Nope...just wish I had started sooner. This car would be the perfect JV UTCC candidate.

Well lets kick ourselves in the butt and get it done so we have a year to shake it down. Go for the win if Varsity next year!

dyintorace
dyintorace Dork
5/19/09 8:33 p.m.
P71 wrote: Is that a 10th Anny Turbo II? Those wheels are worth some bucks!

The car is not a 10th AE, but the wheels are. I'm definitely going to sell them once the car is done.

Man you got the steal of the century going on here, I'm jealous! Josh (josk18_2k) on rotarycarclub.com and/or rx7club.com built one that is a local autocross terror. He's always happy to talk about his car. He managed 285's up front, but on 17 or 18 Enkei RPF1's using flared fiberglass fenders.

That is good to know. I will seek him out for advice. My fear is when it comes time for wiring. I don't plan on running anything other than the basic requirements, but I've never wired anything in my life.

As an aside, I've driven his car quite a bit. It's a hardtop S4 FC GXL car with a completely stock 320RWHP LS1/T56, Tein coilovers, and a full interior. It did 12.4@117 in the 1/4 on Advan's that were way too short and a weak 3rd Gear. With the freshly rebuilt trans he has now and some taller drag tires it will do 11's easy. It has also FTD'd against some very, very fast local guys in autocross. We're doing a 3-day track event with it in 2 weeks.

Interesting to hear his times. I'm not looking for a drag car, but I'd love to crack off some 10's just for fun! My real goal is to have a road race terror that will give me the platform to chase down Porsches, Corvettes, Ferraris, etc, all while flying the GRM flag!

RexSeven
RexSeven HalfDork
5/19/09 8:48 p.m.

Congrats and good luck. As a fellow FC owner, you picked a very good chassis! Mine definetly outhandles its current power output. Just be prepared to sink a lot of money into it repairing or replacing old, worn out bits- they ain't spring chickens anymore. I haven't experienced anything catastrophic in mine, just annoyances that come with age. rx7club.com and rotarycarclub.com parts forums are your friends.

Question: Why the hell is the ass end so much lower than the front? Blown shocks?

dyintorace
dyintorace Dork
5/19/09 8:58 p.m.
RexSeven wrote: Congrats and good luck. As a fellow FC owner, you picked a very good chassis! Mine definetly outhandles its current power output. Just be prepared to sink a lot of money into it repairing or replacing old, worn out bits- they ain't spring chickens anymore. I haven't experienced anything catastrophic in mine, just annoyances that come with age. rx7club.com and rotarycarclub.com parts forums are your friends. Question: Why the hell is the ass end so much lower than the front? Blown shocks?

Thanks! I know there will be lots of odds and ends to go through. I plan on sticking with the factory 4 piston brakes but will replace all the wear items, including brake lines, rebuilt calipers, etc.

It's probably a little unclear in my original post, but the LS1 came in the car below. The red/white car is the chassis I will use for the build. It's sitting funny in that picture for two reasons. One is it is sitting on a down slope, two is there is no engine in that car.

And I couldn't resist a close up of this one. It is my 4 year trying to "look tough" (in his words).

dyintorace
dyintorace Dork
5/19/09 9:01 p.m.
MrJoshua wrote:
dyintorace wrote: Nope...just wish I had started sooner. This car would be the perfect JV UTCC candidate.
Well lets kick ourselves in the butt and get it done so we have a year to shake it down. Go for the win if Varsity next year!

I think we'd still be JV. Unfortunately, I suspect the 2010 UTCC will be back on the West Coast (if GRM follows the pattern established so far). We may have to wait until the 2011 event.

MrJoshua
MrJoshua SuperDork
5/19/09 9:07 p.m.

Ooops-meant JV.

Osterkraut
Osterkraut Dork
5/19/09 9:50 p.m.
MrJoshua wrote: I wondered where Imelda Marcos had gone. She is apparently living in your garage.

I made fun of him for that, too! It's fun!

Dyintorace, that red and white car reminds me of something. What might that something be?

MrJoshua
MrJoshua SuperDork
5/19/09 9:54 p.m.
Osterkraut wrote:
MrJoshua wrote: I wondered where Imelda Marcos had gone. She is apparently living in your garage.
I made fun of him for that, too! It's fun! Dyintorace, that red and white car reminds me of something. What might that something be?

Now this is a family board, and thats just yucky.

dyintorace
dyintorace Dork
5/19/09 10:11 p.m.
Osterkraut wrote: Dyintorace, that red and white car reminds me of something. What might that something be?

That was your moniker, not mine!

Osterkraut
Osterkraut Dork
5/19/09 10:17 p.m.
MrJoshua wrote:
Osterkraut wrote:
MrJoshua wrote: I wondered where Imelda Marcos had gone. She is apparently living in your garage.
I made fun of him for that, too! It's fun! Dyintorace, that red and white car reminds me of something. What might that something be?
Now this is a family board, and thats just yucky.

What, I was thinking the top 2/3rds of a Rocket Pop!

MrJoshua
MrJoshua SuperDork
5/19/09 10:27 p.m.

Your ice cream man was lying to you.

MrJoshua
MrJoshua SuperDork
5/21/09 8:33 a.m.

So considering the fact that most of the people involved in the project have very very little experience with LSx engines-anyone got advice for specifics (parts, etc...) to reach the semi hi rev 450ish whp goal?

dyintorace
dyintorace Dork
5/21/09 9:24 a.m.

One specific question I have is the notion of porting heads vs. buying known, off-the-shelf bolt on performance heads. Pros/cons?

Rusty_Rabbit84
Rusty_Rabbit84 Reader
5/21/09 9:35 a.m.

looks like christmas morning...

curtis
curtis New Reader
5/21/09 9:50 a.m.

dyintorace said:

That is good to know. I will seek him out for advice. My fear is when it comes time for wiring. I don't plan on running anything other than the basic requirements, but I've never wired anything in my life.

http://members.tripod.com/~grannys/2ndgeninstructions7.html Knowledge is POWER!
curtis
curtis New Reader
5/21/09 9:52 a.m.

and for those of us with web nannies. . .

http://74.125.47.132/search?q=cache:nomYqI-ZPNEJ:members.tripod.com/~grannys/2ndgeninstructions7.html+2nd+gen+rx7+ignition+relay&hl=en&ct=clnk&cd=6&gl=us

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