Originally Posted by themonsterisme

the funny thing is this nothing beats displacement quote....ive seem many big block blown american cars get stomped...i mean...f*ing stomped by supras and rx7s all day long ....i think you greatly overdramatize american motors by alot....dont get me wrong...i have a 1966 ford galaxie 500 witha big block in it and its pretty cool to have...but i dont give a sh*t what you say....these jap motors and turbos beat the crap out of everything including but not limited to porshes, lambos, ferraris,etc....

Originally Posted by themonsterisme

i have a 1966 ford galaxie 500 witha big block in it and its pretty cool to have...

Originally Posted by Improved FD

please don't make this another V-8 vs. rotary thread, there are other sections of the forum to carry on that (very) tired discussion

best of luck David....good things come to those who wait (well, usually ) I hope that will be true for my car as well

look forward to seeing you in Asheville with this monster in the future

Originally Posted by David Hayes

...So, I'm now attempting to solve that issue....

Originally Posted by themonsterisme

now put a twin turbo setup on a v8 and it becomes a different story then.....

Originally Posted by themonsterisme

now put a twin turbo setup on a v8 and it becomes a different story then.....

Originally Posted by dradon03

try to fit TT's in a ls series fitted in an rx7 engine bay.

Originally Posted by dradon03

try to fit TT's in a ls series fitted in an rx7 engine bay.

Originally Posted by amp

the price paid should include the tuning.. doesnt make sense to provide you a motor that they cant tune.. regardless of their lack of expertise on the ems..
they should be covering this expense and repsonsibility imho...

Originally Posted by 20B 3rd Gen

You mean like this?

Originally Posted by David Hayes

Sometimes you just deal with the reality and timing of the situation.

Originally Posted by David Hayes

Now, if I can just solve the HP and electronics issue. Wondor what I am doing about that?

Originally Posted by David Hayes

Took about 7 months. Most of the work was done in about 60 days but then Pettit found out the EMS they normally use for the 20B conversions (Lynks?) is no longer available for the 20B. This sent them into a 5 month process of selecting a new EMS and then attemping to tune the Wolf unit. This where they failed.

So, I picked up the car about 70% tuned and spend several months learning the Wolf unit and tuning the car (with the help of my local resident FD expert Dean Colver). We had it running pretty well but just couldn't seem to break the 400 RWHP barrier. Couldn't get boost to hold above 10 PSI or so.

So, I'm now attempting to solve that issue. Hope I'm not in the same cycle as the above - keep you posted.

Originally Posted by dubulup

what kind of electronic problems are you having and I'm curious as to what you are doing about them?

I'm an electronics engineer, I'm involved with an "entire" custom FD project (as in every single wire/system in the car is being designed and installed by me) and won't be available for a couple months

Originally Posted by Nimitz87

first david what a show you've been/going through with this!

I read the entire thread...its been raining for about an hour so...lol.

few questions that I did not see adressed.

1.) how much does this thing weigh w/o a driver?

Should weigh in about the same as a regular FD. Pettit claims it weighs 2730 lbs but this seems a tad bit light to me.

2.) weight bias? maybe you can get it on a 4 corner scale? pretty please?

Weight bias should be the same also. As for the 4 corner scale, sure when I get the car back and if you (or anyone else) knows where one is in Northeast Florida.

I drove the car for about 5 months after the conversion and before sending it on its way to CA. It drives and handles fantastically well. Remember, I upgraded most of the suspension and the brakes during the conversion so this could be why it feels so good.

3.) do you have any regrets to this project at all?...

Regrets - That I didn't pin Pettit down more regarding the details of the project, the cost, and the timing. I've had work done at Pettit in the past and it has all gone well and on time. With this project, I said "I trust you, do what is needed". Now that I know more about the whole 20B conversion project, I would have gone single turbo from the beginning and I would have written a contract that would have had a "max time limit" and cost on it. Most mechanics won't accept this though. So, with everything I've had done on the car for the 20B conversion and with the current "project" going on in CA, I'll have sunk about $55K into the car, vastly exceeding what I believe I can get for it in return (once you add in the actual value of the car also).

However, I'll end up with something very unique and very kick butt and that's why I did the project in the first place.

4.) did you think about a v8 swap at all?

No, not to flame the V8 vs. rotary debate, but I'm a purist. V8s are fine but they belong elsewhere, not in an RX7. Yes, I could have done a V8 swap for a lot less and others might wish to consider this. If I wanted a Mustang or Corvette, I would have bought one (along with the Hugh Heffner smoking jacket and gold chaines for the 'Vette) in the first place (heh heh, just a little joke).

My feeling is the car started life with a rotary and I'm enhancing that with a bigger, more powerful rotary. So, I've attempted to put the biggest and most unique rotary in it that seems feasible to me, and that's the 20B.


I think thats it...besides drag times or videos!!!


I sent many months ago vids of the car on the dyno to a forum member for posting but apparently they never got uploaded. I will post new vids when I get the car back as well as a final dyno of the car and its capabilities.

Chad

Originally Posted by Nimitz87

Thanks David for answering my questions....much appreciated.

Chad

Originally Posted by PalmTreeDoc

Hi David

Looking forward to the finished product. Weston is West of Fort Lauderdale here in South Florida - out near the everglades.

Doug

Originally Posted by t-von

Well David, if your going single, expect to loose some of that low end you once had. I'm talking about the 3k and below performance for better around town drive-ability. The older twins give better response and torque down there from what I've seen on most 20b dyno graphs.

Originally Posted by David Hayes

If I were going single, and I'm not saying if I am , this is possible. Any experiences with the dual BB turbos and their spool up?