I also posted this in the Aftermarket Performance Forum, I thought it would be good to post it here too.

 

I'm a good friend of Maurice's so I'm biased, I guess. I will say his car was ok without the stage 1 mod, but not close to my 3rd gen. Now it's a lot closer. Still slower, but my car is on jackstands for the 6 months of winter, carries two people and little luggage. He's out playing in his all winter. Oh, and he can drive for hours without stopping to stretch. Things I can't do in the 3rd gen.

 

RX-8 friend, how does your 3 gen RX7 compare with canzoomers stage 2 mod. or did you get a chance?

 

I read on another recent post from Canzoomer that he pulled a best Gtech run last evening (actually early this morning) of 13.78 with a nearly perfect launch and reving to 9K. Pretty impressive. He went on to say that preliminary Dyno numbers indicate about a 20 to 25 HP increase. We'll see as he begins to post more data. Exciting stuff:D

 

The stage 2 mod hasn't been built yet. I think I saw some parts laying around (a really shiny cat covered in stickers - it was jewlery), but getting stage 1 out is 1st priority for now.

I'll probably have to do some tuning on my 3rd gen to keep up (I have the Apex'i Power FC in it). Or just sell it and get an 8. Comfortable seats, carry 4 people, luggage space. Hummm.

<rant on>
One thing I would like to bring up to all those contemplating HP numbers. Lets say tuner 1 could tune an engine that normally produces 200 HP to produce 300 HP, but it only maintains that level within 10% over an RPM range of 6000 to 6500. Outside that range it actually is -below- stock. Tuner 2 figures out how to make the engine produce 275 HP from 5000 to 7000 RPM within 10%, and it gives a few more HP than stock at all RPMs. Which one would you choose?

What I'm saying is, it's not the peak we should be looking at. It's the area under the curve - and only under the part of the curve that we are willing to use:- ie are you willing to frequent 7500 RPM in normal operation around town?
I see so many dyno plots in car mags "proving" that catback A is a great addition because it gave 5 extra HP to a 250 HP engine. When you look at the dyno plots, it looses 3-5 HP at lower RPMs over a 3-4 k RPM range where you would normally be using the engine in day to day use, and only gives 5 extra in a 100 RPM range that you would only hit drag racing.

-I- don't consider that progress.
<rant off>
Sorry. I had to get that off my chest.

 

Hey guys, I'm impatiently awaiting dyno sheet info on any Canzoomer kit. I've been following this from the start. Did I miss it or is he just not going to publish those claimed numbers. I've been very impressed by the technical knowledge displayed by Maurice and I spoke to a very prominent seal manufacturer who was able to vouch for the performance shop/engine builder that he is friends with.
Please point me in the right direction if I missed it or please post it. Peace.

 

Neither. He has posted (or RX-7 friend has posted) that they are working on a better solution to fool the ABS sensors for dyno testing, since they put the engine into safe mode. He fully intends to dyno test on a Dynojet soon, solely for the sake of providing the data to potential customers. He has said he'll post before and after runs for the Stage 1 ECU Mod. BUT - as I mentioned, he wants to get the real numbers, not the safe/limp mode numbers that everyone else has gotten so far (he has confirmed that even with the DSC fully off, there is an ECU monitor that watches the ABS sensors and detects excessive rear wheel spin relative to the front wheels, and then goes into a safe/limp mode). They were on a dyno last week, but had some wiring problems that prevented getting the runs in.

Regards,
Gordon

 

'Zoomer had Thursday 18th booked for the dyno, but had to cancel due to the computer not being fooled by his ABS fooler circuits....
Friday the dyno guy cancelled, and that leads us to Xmas week....

He is an incredibly busy guy, and this whole project is, at best, 3rd or 4th on his priority list!
Fortunately, I am only 'semi' employed, and have nothing to do but bug him!

So you didn't miss the dyno data, it is just 'tardy'.

S

 

Thought I have been keeping up with things, but I missed this. Please confirm the above - does this mean ALL stationary dyno machine numbers that have been posted previously for the RX-8 are low because of going into 'limp' mode?

 

If they are quick and clever, they will be ok. They have 3-4 sec. to do a pull. If they remove the rear ABS sensors -while sitting on the rollers- they will have about 15-20 seconds. If they see a light (DSC or ABS) they will be in "limp mode". Sometimes there is no light yet they will be in limp mode.

Great fun.

 

Hi friend,

It was very good you got that off your chest. You made some very pertinent points that people reading this should take note of:

• The AREA "under the curve" is what really is getting the car acellerating strong and hard through the rev range. A 10hp peak 250RPM either side of 9,000 is pretty useless in most situations, if it no better everywhere else. That would constitute what we call a "dyno-queen".
• Some mods do lose HP down low-mid range. Ok for a racing machine (and narrow that down to a dragster and a oval track racer), but not for a street car. One of the reasons I resisted the temptation to go bigger than 2.5" on the rear pipe on the Hymee cat-back. But it may take a hundred dyno runs or more to be absolutely sure. Our local 5L (610HP) racing category actually found a 2.25" collector on the headers, before going out to 3", improved mid-range torque. I'm not saying that is the same for this engine, just giving a real world example.

Good work guys.

Cheers,
Hymee.

 

....It's been pretty quiet out there. Let's get some facts on installs and your impressions.

Jan 29 installed....and I love it.

 

Isn't this pretty much the same as the "Comments on stage 1 " thread?

 

Received February 4, 2004...upon installation TCS/DSC lights were on AS WELL as CEL light...engine idling @ 2K RPM...given throttle, engine SLOWLY revs to 3K then drops off accelerating...turned car off, disconnected battery, turned unit off, reconnected battery tried turning car on, realized i flooded engine, used procedure indicated in book, got it started, same thing...called Maurice who was kind enough to run some troubleshooting with me and he figured out from the fact that my temp. guage was not going up that the unit must have had a loose wire...returned the unit yesterday for repairs...awaiting new unit

btw, got 3 inches of snow last night so i'm not all that anxious for the unit anyway...highway driving last night was @ 34mph tops...

 

Why aren't more people posting news about getting their kits? I wanna hear how it's going out there! Thanks.

 

Well, I got mine today and installed it. It took me about an hour. I followed the directions posted here and it went pretty well. I only cursed a few times. There is a little room left in the ECU compartment after installing the mod, so I inserted some 1" foam padding to tighten the fitment. I didn't want the ECU "bouncing around in there. I was careful not to use too much so that it got proper ventalation.

I took it for a spin, DSC off, and here's what I found: It could be me, but it seems to be a bit slower in the lower RMP range 0-4000. But, like I said, it might be me. There IS the "dip" at about 4300 rpm, then it seems to explode at about 5000 rpm. It pulls strong from 5000 all the way to 8500 or so. It's a definite improvement over stock in the high RPM range.

I believe Maurice did a good job with this mod. I think it's going to be hard to get more hp out this motor with out going to boost, and the Stage 1 is a good buy for the hp it produces.

I'm going to drive the car more this weekend (weather permitting) to see more of what it does with the Stage 1. Now I'm aware of reports that this unit doesn't affect the low rpm performance in this car, but I feel that it might, and like I said, maybe not for the better. It just feels a bit "sluggish" down there, but what the hell do I know? I'll keep posting about it...

 

There's a 26 page thread about people's impressions here, and there's another 3-pager here. :D

 

Thanks, Omicron. Actually, I had been watching those threads, too, but they also seemed to have bogged down into various related topics, without a whole lot of new people reporting their experience with the kit.

Now things seem to be picking up a little bit, but still, it seems like either (a) a lot of people have yet to receive it; or (b) they have received it but are keeping mum.

 

I agree with you Hard 8...

Seems like the folks getting their Stage 1 are not talking or haven't rec'd it yet. I ordered in December, was charged 1/13/04 and haven't seen mine yet. It would seem that Canzoomer is pretty backed up yet. I do wish those that have rec'd them would give up some impressions. Not more of the "seems faster", etc... but run some G-tech runs (with the dyno problems I would like to see before and after G-tech instead now). Even timed runs starting at a specific rpm and running to red line before and after??

Tom

 

I'm in the same boat as you islandsoon, patiently waiting!