FC project is nearing completion...
- Thread starter JDuncan
- Start date
Mazdaspeedgirl
Resident Autocrosser
- :
- 99 10AE MX-5 | 2016.5 CX-5 GT
WOOHOO! Those ports are purdy... What else are you doing to the motor?
Went with fd housings and all fd internals that could be used... (rotors, e-shaft, stationary gears, bearings, oil pressure regulator, counterweight, flywheel, etc.) The only thing still S4 are the plates and front cover. The S4 plates were hogged out with the Mazdatrix porting template as the guide. A fairly conservative port pattern, but Judge Ito's new port design wasn't out yet and I didn't feel like trying to reinvent the wheel myself. The S6 housings benefitted the exhaust porting that Racing Beat prescribes with their street port template.Mazdaspeedgirl said:
Picked up a haltech e6k, and a pair of 1600cc injectors for the fuel. Will be running a T04E 57 trim turbo with a p-trim turbine wheel in a .84 Tangial turbine housing. Using an HKS cast manifold and HKS 40mm wastegate to stick it on the engine with. The plan is to build it for an autocross setup with as flat a curve as possible. I am hoping for around 300hp at the wheels at ~8lbs of boost. We will have to wait and see what happens to know for sure.
To top it all off, I don't think I am gonna end up putting it all back in the junkyard TII. I have found a real clean '90 shell and that may very well end up being its new home. It is close enough to being reality that I have trouble sleeping at night. I can't wait til the project is complete. I still have water cooling to address and will be using the intercooler out of a Mitsu Fuso truck up front for air cooling. I also will be using two oil coolers in parallel to aid cooling there.
Suspension will be upgraded with Tokico Illuminas up front and Koni Sports in the rear. Strut bars front and back. I am supposed to be getting a ST adj. sway bar for the front. I have a set of Ground Control coilovers to go on, but I don't have top hats for the springs nor caster/camber plates for the front yet, so I don't know when those will be able to be installed. The rear end is being switched to a torsen unit from a fd.
I hope to make the car fly in corners and otherwise.(eekdance)
Mazdaspeedgirl
Resident Autocrosser
- :
- 99 10AE MX-5 | 2016.5 CX-5 GT
All I can say is BAD ASS! And i wish I still lived in da Ville. 
What class is that gonna be in for autox? SM2? Surely it won't be a prepared class...
What class is that gonna be in for autox? SM2? Surely it won't be a prepared class...
BPrepared or SM2. BP requires a weight penalty with the aftermarket fuel injection, but as I am leaving the car with full interior, I am nowhere near the weight limit anyway.Mazdaspeedgirl said:All I can say is BAD ASS! And i wish I still lived in da Ville.
What class is that gonna be in for autox? SM2? Surely it won't be a prepared class...
Only bad side effect of all of this can be found in the forsale section of this site and many others. Boo.
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Mazdaspeedgirl
Resident Autocrosser
- :
- 99 10AE MX-5 | 2016.5 CX-5 GT
?
me checks for sale section...
me checks for sale section...
Got a few questions for you...
Why did you decide to go with a S6 LSD?
And Why are you using the intercooler for a truck?(I know many many people use NPR or similar intercoolers...I want to hear your take).
I have a 10th Anniversary Edition RX7 by the way thats just getting back together. I've got about $400 in rubber and a LSD rebuild and its "done".
Why did you decide to go with a S6 LSD?
And Why are you using the intercooler for a truck?(I know many many people use NPR or similar intercoolers...I want to hear your take).
I have a 10th Anniversary Edition RX7 by the way thats just getting back together. I've got about $400 in rubber and a LSD rebuild and its "done".
I went with the S6 Torsen Diff because I autocross and it is a bit better in those situations. The clutch pack style LSD that is stock is great for drag racing or other straight line activities, but it pushes harder into oversteer in autox situations. I like to turn. The other plus is that it is a gear driven diff as opposed to clutch pads. With the amount of power I will be trying to put down, I would put wear on the S4 LSD at a very accelerated rate. The S6 Torsen just makes sense for what I am trying to do with my car...N1XRR said:
I went with the fuso intercooler because I have plenty of other things to break the budget with and I didn't need the intercooler to be one of them. the particular one I got has a nice large surface area, endtanks that perfectly straddle the width of the radiator and point their outlets in the correct direction. It has plenty of flow and with its large frontal surface area, it should be more than adequate for my cooling needs. Most importantly, it was $50. It was just a really nice fit for my project and its budget. Remember, I only paid $250 for the car and while a $1500 Greddy kit is nice, it just wasn't something I could justify for this project. As of right now, it is looking like I will have right at $2500 total in the car upon completion (including the purchase price). That is kind of hard to beat... I could probably sell enough parts off that I have removed and get it down to $2005 to do the GRM challenge if I wanted to. Not many T04/Halteched/Streetported RX-7's could make that cut...
I love the 10AE's. I have looked at buying one a couple of times. If only they had used good paint. Everyone always wants a premium for them because of their rare status, and every single one I have ever seen needed to be repainted. I just couldn't make myself spend more and then have to dump another chunk into a quality paint job. I will still probably end up with one eventually...
First things first, I just wanted to say I'm curious about your decisions...I'm not ripping on you in any way, shape or form. Infact, I applaud you because of the work your doing and how well your doing it.JDuncan said:
I was curious about the LSD because I've seen many many S6 guys pay a lot of money for a S4 LSD (S5 viscus is TERRIBLE). I've been looking into a diff rebuild myself, as mine is shot(just the clutches) and I'm building this car for autocross. If you don't mind me asking...how much did you find a S6 LSD for? And how did you get it to fit in the stock housing? I've heard from a few people that a little grinding at the walls is nessessary...but I don't know anyone who's tried it.
As for the intercooler, yeah...you can't beat $50. Personally I'm trying to decide between taking off the mounting crap on mine and welding tanks onto the stock intercooler and making it an air/water. The advantage is less pressure drop and less piping.
But then I started finding other intercoolers online. The 944 intercoolers are Bar and rod type instead of tube and fin. Less pressure drop and a LOT more effecient. They can be had on ebay betwen $100 and $250. But, they are relatively small.
My 10AE came at the price of a regular TII when I bought it(3 years ago, $5500). It had great paint on it...but had a few mechanical problems I didn't know about until MUCH later. Since then, I've been fixing the mechincal problems...but got into a small accident(fender bender...had to replace bumper and fender). Now, I've got to strip down the car and repaint it...sigh. Most of the 10AE things are just, useless. The 16 year old stereo is the biggest peice of trash on the planet(replaced...then transfered to new car and now the TII has no stereo...weight savings) Headlight washers...yay. But I LOVE the seats and everyone I know...even ones that have NICE aftermarket seats love these seats. For the 86-88 cars, definely the best.
I LOVE the white-on-white, with black interior.
I just put a relatively new engine in...using a S5 turbocharger. This car flys now...but I need a computer. I can't drive it now(not registered or insured, off the road for repairs), but I don't want to put it on the road without some sort of upgrade to the computer and fuel.
The S4 LSD is great for those trying to build drag cars or into street racing, or drifting even. It bites hard when fresh and gets the power down. The only problem is that it pushes the rear out to much in tight turns. Given, if it is driven correctly, it is still far far superior to an open rear, but it is just not well suited to autocross driving or road racing. It'll work, but the torsen works better out of a tight curve any day of the week. I paid $200 for an entire pumpkin out of an automatic FD. I have pulled the torsen out and have not yet mounted it in the FC pumpkin. Still trying to decide where the heck I am going to put the engine once it is done...N1XRR said:
Unless you are looking to run wild boost, a lot of people have had good luck with swapping the secondary injectors for a bigger set and controlling the fuel with an afc like the apexi or hks units. Might wanna put in a walbro fuel pump and a fresh fuel filter as well, just to guarantee the supply. What boost are you planning on running?N1XRR said:
Right now, my LSD needs a rebuild. I was thinking about just getting a S6 unit(thats why I was asking).JDuncan said:
Right now, its not "How much fuel do I need to put into the engine" as it is "Will it start this morning?" The stock computers are pretty terrible for reliability, thats why I want to switch over. I'm thinking of just going to an RTek7 for now.
How much boost? I'm going to get an EBC and run about 10psi. I need to up fuel pressure and get bigger secondaries. When I get a little more time, money and a garage I'm going to pull the engine and put in the ported housings I've been working on at my parents place.
a few reasons.
First and foremost, I got them with some of the other parts as a package for a much discounted price over what I could have bought something else for. Budget is a big concern in this endeavor.
Second and fairly important as well, it gives me room to grow. As I learn the car, I can start adding more horsepower to the equation. The FC that has taken the national championship for the past few years in B-Prepared has somewhere between 375 and 425 whp on tap. In the end, I will need similar power to be competitive.
Third, there are already well developed maps for the haltech ecu with these injectors. I have access to a wideband O2, so all I end up having to do is bump it rich across the boards and then make street pulls, monitoring the WBO2 and making adjustments to the fuel to suit my application. I don't expect any tuning issues with this setup.
First and foremost, I got them with some of the other parts as a package for a much discounted price over what I could have bought something else for. Budget is a big concern in this endeavor.
Second and fairly important as well, it gives me room to grow. As I learn the car, I can start adding more horsepower to the equation. The FC that has taken the national championship for the past few years in B-Prepared has somewhere between 375 and 425 whp on tap. In the end, I will need similar power to be competitive.
Third, there are already well developed maps for the haltech ecu with these injectors. I have access to a wideband O2, so all I end up having to do is bump it rich across the boards and then make street pulls, monitoring the WBO2 and making adjustments to the fuel to suit my application. I don't expect any tuning issues with this setup.
Good points.
BTW - Steve O'Bleans sold his FC this past off season so the BP class is up for grabs this year.... Hmmmm.....
The engine looks nice and clean. Porting looks good too. I am guessing Street Port right? I am not good at identifying port jobs from pics.
I really dont know you or your Autocrossing background but if I could suggest one mod to you. I did this mod and it drastically changed my Autocross times from trailing by 10ths to getting consistant FTD's, sometimes by seconds over the next fastest car.
I modded the driver.
http://www.autocross.com/evolution/
After taking their Phase 1 and Phase 2 courses I came back the next season a whole new driver and took my 1st FTD after their school. This FTD by the way was at my 6th event EVER. I had a hell of a car and was not coming withing 70% of its full potential.
The best thing that ever happened was when a guy named Steve Brollier stopped by a school to say hello to Jean and Marc Dana. He saw my car running the course (Evolution practice day) and asked me if he could take me for a ride in it..... He made my car do things I never thought it was capable of doing. I realized I was driving it like a pansy after that and needed to learn how to trust it better. I walked away that day and it was all starting to make sense to me.
I have tons of stories about my experiences with Evolution. I believe in them so much that I sponser a Rotary only Autocross school every spring with them instructing. (I also did a Mini cooper one - another love of mine the Mini)
Look them up its worth every penny. Especially if you want to be competative.
BTW - Steve O'Bleans sold his FC this past off season so the BP class is up for grabs this year.... Hmmmm.....
The engine looks nice and clean. Porting looks good too. I am guessing Street Port right? I am not good at identifying port jobs from pics.
I really dont know you or your Autocrossing background but if I could suggest one mod to you. I did this mod and it drastically changed my Autocross times from trailing by 10ths to getting consistant FTD's, sometimes by seconds over the next fastest car.
I modded the driver.
http://www.autocross.com/evolution/
After taking their Phase 1 and Phase 2 courses I came back the next season a whole new driver and took my 1st FTD after their school. This FTD by the way was at my 6th event EVER. I had a hell of a car and was not coming withing 70% of its full potential.
The best thing that ever happened was when a guy named Steve Brollier stopped by a school to say hello to Jean and Marc Dana. He saw my car running the course (Evolution practice day) and asked me if he could take me for a ride in it..... He made my car do things I never thought it was capable of doing. I realized I was driving it like a pansy after that and needed to learn how to trust it better. I walked away that day and it was all starting to make sense to me.
I have tons of stories about my experiences with Evolution. I believe in them so much that I sponser a Rotary only Autocross school every spring with them instructing. (I also did a Mini cooper one - another love of mine the Mini)
Look them up its worth every penny. Especially if you want to be competative.
That car is still out there. Watched it take the win in BP at the tour in Peru last weekend. The motor is a streetport off of the Mazdatrix template for intake and Racing Beat template for exhaust. I thought about the "judge ito" port, but decided to go with something a bit more traditional in the end.Jims5543 said:
I have already participated in phase 1 & 2 of the evo school. I will probably do phase 1 again next year, funds permitting. I kind of liked the feedback given by the segmented times. The driver in this case still has plenty of room to improve.
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