aww c'mon man, we need updates

getting blue ***** over here

 

Yes its on the server at work. I'll try to post it up tomorrow.

 

Sweet. I'm curious to see your results. Rod:stroke ratio on the new setup is 1.8 at 155mm rods and 86mm stroke using the stock crank.

 

Alright so i did in fact get on the dyno for a couple hours after work the other day. Still not polished out 100% but the curve and its potential can definitely be seen. I'll try to post up a log file tomorrow as well for those with megalog viewer.

Currently putting down 305hp and 280ftlb torque at 14 psi. The best part is where the torque comes in and how long it holds...

If compared to the old graph (note: scaled differently but max revs should be close to the same) there are gains from 75 to 90 ft lb torque low end. You can definitely feel it.



Old graph on 17 psi and spent engine. (low compression cylinder 2 and different exhaust manifold. rolling coal.)





Erich, the tuner at PRE says he can potentially get close to 400 out of the current setup depending on if it likes more boost on pump gas but i'm thinking 350 is a safer bet on pump and then if i get a wild hair i'll go to 400ish on e85. I'll need to drop close to 8K on wheels, tires, brakes and body at that point though.

As far as ripper videos i'm sorry but the best i can do for now is hard single gear pulls. The rx7 TII trans doesn't seem to be going into gear easily between shifts. At a stand still the car moves slightly at the gate which makes me think its a pressure plate disengagement issue instead of a lubrication issue (act HD) but i'm considering a redline trans fluid change in hopes that its just that simple. Got a quote on a twin disk clutch from clutch masters today... 1700$

If fluid doesn't work i have an OE Kia Sportage PP in a box i can try but that's alot of work just to diagnose an issue.

 

I'm kind of surprised you're not making 250ftlbs by 3k rpms. But I guess you started the pull kind of late for that.

 

Your torque curve moved left 1,000 rpm and is hanging in there. Nice. I think this looks very promising for a preliminary tune. What's the timing on this pull?

 

Very nice!

Its so flat from 4-7, must be a delight. I kinda agree wtih leafy in that I would expect it to spool even sooner, but you're on pump and likely very conservative timing, on corn and with proper timing I bet this thing would be nuts.

Either way, your car must be a hoot

 

Wow looks great!

I have the same problem with the clutch/trans on our Miata. I've bled the brand new hydraulics enough times i could scream, spent hours messing around with the pedal adjustment, and even with it adjusted out as far as it will go without slipping, it still creeps forward at a stop and doesn't shift real nice in the lower gears.

Hoping it all holds together long enough to scrape together money for a 5spd and a 949 clutch to replace this 5spd and FM clutch.

 

Awesome thank you!

 

Love this build thread

 

Did a PCA autocross the other day. Everything is operating well. I was extremely limited with 205 Nitto Neogens but it was fun to skate around regardless. Ended up pulling out 5psi and still was rolling them over in the short straights.
see youtube.

I'm on the hunt for an M3 E46 6 speed manual and a car payment. No more of this racecar DD stuff. I'm over it. This means a diet and new go fast plans for the Miata.

 

my god that sounds sweet coming into spooling!

 

I really should turn up the boost so mine makes those noises.

 

oh my!!!
coolstorybro.jpeg
we'll see it when it happens.

 

I did receive the 4 port boost controller I ordered with random money in my paypal. So now my only reason is laziness.

 

Wtf did you use the intake manifold brace as a tranny crossmember?!

 

That's the stock rx7 tII R transmission support arm.

 

I forget, did either of you guys with this mount weld spreader plates to the trans tunnel in the passenger compartment for them. That sheet metal is awfully thin, would suck for the mount to tear off the body.

 

from this thread, post 60, mighty mouse said:

I was under the impression a spreader plate was typically used in hardware applications like a bolt in cage or harness. But I get your point, I just think it's as thin as you thought where the mounts are being welded.

 

Yes it was super thin. If i had to do it again i'd make a bolt in brace that would be connected to the frame rails. that way if you bail on the project you can always go back to the 1.6 stuff. DC2696 has the right idea. He was able to swap back to the 1.6L setup in <12 hours after he popped his FE3 at Laguna seca.