arghx

iTrader: (3)

They are 225/45/17 Dunlop DZ-101. in that video they were 225/45/17 dry rotted Sumitomo HRZ-II's. Neither are particularly sticky tires... basically low end Z rated summer tires. As for the amount of power, I have not dyno'd it on this engine and turbo. An old dyno from a different turbo before the rebuild did 386rwhp and around 300 torque on a Dynojet, uncorrected numbers. I suppose horsepower is somewhere in the low to mid 400's and torque is somewhere in the low to mid 300's.

The difference is that compared to your setup I have little torque under 5000rpm due to the size of the hotside and the shape of the ports. Once it gets going it's terrifying, however part throttle torque around-town is limited but tolerable. It's nothing like a stock turbo but it's also not like my old GTU with the aux ports wired open. This probably contributes to the relative lack of wheelspin.

Here is a 70-100mph pull in 3rd and briefly in 4th.

http://www.youtube.com/watch?v=Ri9ZN-iby-0

rx7 SE

iTrader: (5)

lol, fun times like that which makes all our pain, sweat, and tears worth it haha. Sounds like it has a very smooth tune. I've actually been in Raleigh many times but never in the 7 you should come down to Zmax dragway and race with my little rx7 crew here in Charlotte! They all run Borg warners or Gt42r's so once spooled up they make me feel pretty slow lol. We all plan on running next Wednesday, pm me if you're interested.

arghx

iTrader: (3)

appreciate the offer dude but I can't make it. I'm actually planning to go back to a stock flywheel for smoother starts off the line. Just picked one up off the forums here and I gotta get it balanced and machined. I'm also thinking about a Corksport short shifter. I had a Mazdatrix short shifter on my old GTU but I want to try a different brand.

With gas prices the way they are it's a tough call to make road trips in the 7. Charlotte and back would end up being $100 in gas I bet, and that's money that can go to for parts. I've done it round trip to Charlotte in my Corolla (not even driving it easy) for like $35 just recently

Nick_d_TII

iTrader: (6)

Here it is. One vid is with some spin in first, and the other is a 1-3 run. Sorry bout the crooked view. What a fun drive to and from work. I normally don't drive like I did today, although I don't feel I was being reckless or anything, just sayin. I do remember before it seemed like it would spin better before I started having issues and got the N318 AFM as it wasn't as rich of a tune(working on it).

I can guarantee that it would not spin with good 255 tires on my current setup. Probably not even good 225 tires.





Log of 1,2,3 (still uber rich and like woah duty cycles)


FWIW, Also Attached is a renamed .pdb file to .zip of the 1,2,3 (o2 scaling 10afr=0V 20afr=5V)

rx7 SE

iTrader: (5)

I'm not familiar with the AFC boost index, how does that compare to boost? Also what type of exhaust are you running, I feel like your boost should be coming in faster being that size...this could also be affected by your rich tune though as well. I have mine in the low 12's at that boost level, next chance you get start yanking some fuel and you'll notice a significant power increase as well as a different tone in your exhaust...now if I could only get my timing to look as good as yours lol

Thanks for the vids guys, it's always entertaining

Nick_d_TII

iTrader: (6)

AFC boost index 0 equals the bottom row (-12vac) on the boost side of the map then 1 equals the second row from the bottom of the boost side of map, etc, etc. I started logging that perameter because I didn't know what cell I was in exactly given the boost reading.

Exhaust is an RB RevII exhaust, I gave up a little spool for a nice quiet exhaust, although I might try and play with the gain a little more on the boost controller see if I can get it to spool a little quicker.

More vids!

RotaryRocket88

iTrader: (7)

Your poor 02 sensor is just pegged at 10 AFR, Nick. It's probably really the 9s. Pull some fuel!

I've been using both the boost index and the RPM index to see what cells really correspond to what AFR. They're really useful, and I should have been using them back when I originally bought the Rtek.

It does seem to take you an unusually long time to get back up to 10 psi after a gear shift. Your hybrid is a bit of an unknown though isn't it? Clipped turbine or a large compressor wheel?

Also, what's up with your air intake sensor? It says it's 8-12 C during that whole log; including under boost. If it really thinks it's that cold, the ECU will add more fuel.

Nick_d_TII

iTrader: (6)

It's Rich, I know, I know... I will pick up a new IAT sensor sometime soon, might help some. I didn't think the turbo seemed that laggy compared to stock. Timing? Boost controller gain? It's not a huge hybrid or anything, don't think it's clipped either.
Something weird I noticed, theres a spike of Airflow after I shift. SE has a similar spike.. huh.

arghx

iTrader: (3)

I wonder if the spike is the vane/flapper in the AFM oscillating from the gear shift.

rx7 SE

iTrader: (5)

More vids you say? Well I forgot I had my stock wheels with very good 225 tires laying in my garage so I slapped them on and walla...wheelspin haha

enjoy...btw, it is in the 70's right now and boost was damn near 20 psi , it's fast as hell but it's only a matter of time now before it goes.

http://www.youtube.com/watch?v=6cT6iixM8Hk

bikeboy23332

nice vid man, it was nice meeting you in person at DGRR although i wish we could have talked a while longer. mine is running rich like nicks, kind of breaking up at times. i need to learn how to post logs and take some videos.

rx7 SE

iTrader: (5)

I post my logs by pulling them up with the palm software, doing a 'prtsc', which is the print screen button, then pasting it into a powerpoint so I can save as a JPEG. From there I go on tinypic.com and upload it sizing it for a message board.

And yes DGRR was a blast, I'll make sure my car is ready next year!

Nick_d_TII

iTrader: (6)

^LoL! Nice Vid! Ha ha!

I don't think it's going to blow anytime soon like arghx mentioned, unless you get crazy(even more crazy). It Sounds good!

I use printscreen and paint to crop and create a jpg and then just attach them to my post here.

Anyone else vids?

arghx

iTrader: (3)

If the AFR's are good, timing is conservative, intake temps under control and motor is still healthy then you may be able to get away with it for a while. I bet that's a pretty fast car now. You'll probably keep up with a C6.

I used to have a really sketchy setup on my Rtek 1.7 + stock s5 turbo + home depot style MBC. I had bad boost creep and it turns out that I had a fuel pressure problem. AEM wideband wasn't working so ignorance was bliss. I was running 14 or 15 pounds during the winter, sometimes more. I seriously think that thing was leaning out regularly. The motor had the RA Super Seals and they really do take a lot of abuse. I never popped the motor on that setup, but I did have some detonation events when boost spiked one night.

For all the horror stories you hear, you'd be surprised how much abuse a rotary can take sometimes. I did some awful ****... I used to brake boost on stock turbo all the time. On stock turbo! It was fun but man you don't need to do that on stock turbo considering how quickly it spools. Boost would shoot up to 16-18 pounds. Now that I have a less responsive turbo you'd think I would be brake boosting more but I pretty much never do it now. With this turbo I really have to stand on the brake to do it or the vehicle just wants to take off... I just feel bad for being so abusive.

rx7 SE

iTrader: (5)

I agree, I've been beating up on this motor since 2006, as long as you have a good set of apex seals and a good tune to prevent detonation these motors are dang near bulletproof. I'll be going out with the FD's tonight so hopefully I can get some vids, if not, there's always the drag strip next week!! Trying to get into the 12's this time

rx7 SE

iTrader: (5)

Well, no video, but I did manage to walk a vette on the highway and pull what sounded like a 600cc+ bike from 25-100...he slowly passed me about halfway thru 4th but if I would have held it out I may have reeled him back in...gotta love these cars

misterstyx69

iTrader: (142)

Hmm,,dunno what I am doing really.I copied Solareon's "proof you can break 300hp"map,since I have the same components.
I plugged it in and it started up.I had to adjust the Start up fuel though as it would Hot start.
Now it will Backfire when you cruise and when you take your foot off the gas to stop in traffic,it will go to 21.9 on the innovate AFR Gauge and Konk out..gotta restart it.
IF I put my foot down I can get up to around 5100 or so then it is like a wall...so I shift into the next gear,
I can keep the revs down and go through the gears, but I cannot go anywhere near redline in any gear,
That is why I wouldn't mind Comparing maps,To see If I can punch in some Better numbers that may help.

sharingan 19

iTrader: (16)

If its too rich , lean it out. A % at a timer if need be.... That's what I had to do on my map as the secondaries were sticking and I had previously tried to out-tune the lean condition.

If its running lean, add fuel and/or check for vac/boost leaks. Any verify proper injector operation.

rx7 SE

iTrader: (5)

Next chance I get I'll shoot you my timing map, on a sidenote...taking the beast to the track today...hoping to get into the 12's and beat one of my FD mates, I fully intend on turning up the boost if I can't run with them lol...ka BOOM!

arghx

iTrader: (3)

There are no guarantees in this world but if one were to push their engine on pump fuel, IMO you are doing it right... throwing boost at it but using AI and keeping conservative timing. Up to a point the timing keeps the rotor wall temp down and the AI will keep the apex seal and exhaust temp down.

Clubuser

I can't see why not if you can get a good out-of-the-hole. However, I'd be more interested in mph thru the traps than ETs. I would think @ least 115 mph otherwise something ain't adding up.

rx7 SE

iTrader: (5)

Well today went pretty well, I didn't get into the 12's but I did consistently go 13 flats with PLENTY of clutch slip which slowed me down considerably. I also took down the big bad FD's, they weren't able to spool fast enough and put the power to the ground as well as my FC.

Enjoy the vids...



This was my fastest time slip of the day (3 runs, 1st run the timer messes up)...as you can see in the vids below the clutch was really slipping. The time slip coincides with the silver FD. My first run was the fastest cuz my clutch was grabbing the best but unfortunately that was the one pass that wasn't recorded. I hand timed a 12 high using the video's.

http://www.youtube.com/watch?v=5SHA2TE-0rk

bikeboy23332

bad *** man! i bet it felt good beating those fd's, way to represent.

rx7 SE

iTrader: (5)

Thanks man! On a side note, I logged all the runs...timing was the same in every gear. About 6 degrees around 4-5k then went up 1 degree per ever 1000 rpms. I still find that odd, but makes pretty decent power with such CONSERVATIVE timing. I might just tune my next motor intentionally the same way.

bikeboy23332

post the logs up, i would like to see them.