interesting stuff.

The car that has our full street legal exhaust on it making 269 whp...the car would probably pick up around 10 whp with an offroad pipe at the track. Usually I tell guys at 300 whp they will see 10-15 whp difference.

The RS is an '04 and made only 237 whp compared to our '03 EVO that made 256 whp. The differences aren't that big a shock to me. I see it on LS1 V8 engines all the time that come in. They will make between 270-310 whp, now that is a large difference in the case of these two it is only 19 whp.

The car needs to be up to operating temps, that was the problem on the dyno. It wasn't a matter of it learning it was on the dyno, it was a matter of it getting warm enough to get rid of the warm up enrichment and bring the AFR's down from richer than 10.0:1.

I am doing ATLEAST two runs for every single part I put on to make the results are repeatable. I do pick the higher of the two consistent runs when I post them. Like the axle back for example. It made 15 whp peak the first run and I think 13whp the 2nd pull. As long as they are close like that I pick the higher of the two and post them.

More in the morning.

David Buschur
www.buschurracing.com

was it any harder to convert the acd center diff to 2wd? i'm interested in how it done. do you sell any kit?

great post, can't wait to see more results {thumbup}

When's the 20G going on? That'll be very interesting.

I agree. Can't wait.... I dont think David can either..... :)

Yup, the 10.5 housing gives more mid range power, and a bit more top end in the 05's.... but Dave has an 04 RS.... not an 05.

Keith

Once again, his RS is an 04, not an 05.... no ACD.

Keith

Interesting you say this. I've always been told I have a strong car... when I pulled the turbo off, I found that my WG actuator was tight as ****. I wonder if this is a contributor.

Way to go David {thumbup}

Oh ok

Update.

Just put the Super AFC on the car. Last HP, as I wrote above was 270. I went ahead and pulled up the torque graphs today too, I hadn't looked at them until now.

Stock the car put down 237 whp and 250 ft lbs of torque.

After the boost controller, 2.5" downpipe, axleback and the filter kit it put down 270 whp and 271 ft lbs of torque.

I added the AFC today and the HP jumped to 295 whp with 272 ft lbs of torque.

The charts and such will be getting added to our site as I said, maybe this weekend.

This completes the Economy Stage. Package sells for $995. It added almost exactly 60 whp to the car. Went from 237 to 295. That is a pretty substantial gain. That's $16.58 per horsepower.

The car is running on straight 94 octane, that is all that has ever been in the tank. The car is also still running the stock untouched catalytic converter and catback pipe. It is extremely quiet. This package would still be able to pass emmisions in anywhere.

I'm pleased as this shows how far off our original Stg 1 numbers are that are on our site now.

I will be testing a BOV change and the offroad pipe on this same kit this afternoon, I would really like to see the car break 300 whp and be able to keep the price down.

Al will be coming here in a couple weeks to do some flashes for all of the staged upgrades again. I really believe we can break the 300 whp barrier with this package and flash, even with the stock cat in place.

David Buschur
www.buschurracing.com

This is really good info Dave! Keep it up! {thumbup}

Man, what a headache this testing is getting to be. Tested two more parts. I am shocked at what I am finding this time around.

First off let me say that running this car on the dyno getting two runs within 5 whp of each other is what I would consider pretty consistent and that is when I figure the results are there or they aren't.

I also said I will pick the highest HP of the two runs and post them. When I am doing tuning and such as I just did with the AFC then it may take 10 runs to get where you want to be.

I ended up having to go back and look at all the last 20 runs or so I did to figure out what the hell was going on.

So here is where the car is. Looks like real world results for this package (Economy Package) is going to come in at 290-295. Best run I saw was the 295 whp. That was the absolute best though. Going back and picking a more typical run was in the high 285-290. This is where I actually left the AFC settings at which were in the 11.5:1 range.

I then added the Forged BOV to see if the boost would stabilize some, didn't make much of a difference in boost and HP was up maybe 1-2 whp.

I then put the offroad pipe in and was expecting a ton. Well guess what folks?! The gain isn't worth pulling the factory cat out for and risking running without it. From what I can tell by laying quite a few runs over each other you might be talking about, at best, and only in parts of the runs 7 whp. Peak power was completely unchanged. Very-very good stock cat on the car from what this is telling me.

So the straight scoop is the Economy Stage (I don't like that wording now that I keep typing it, let's call it STAGE 0 from now on. The way the parts are listed on the site is the way I am going to keep it. Nothing additional is going to be added to that kit as it is just taking you guys for a ride at this WHP level.

I have been shocked at not picking up power from the BOV or the offroad pipe.

I am however happy to offer a kit that gains 60 whp for the $995 and still remains emmision legal and is as quiet as stock.

I would have to guess this package should drop an EVO into 12's with little problem. I am also extremely anxious to see what the flash does for it. Would really like to see the torque come up, which it will, and maybe even break that 300 whp mark on this kit.

I am leaving the car the way it is for the flash to be done in the next few weeks. In the meantime I am going to throw the AEM EMS on it and see what I can do with the HP and also may throw the MAS pipe and upper i/c pipe on it. Those just may prove to make some decent HP numbers much earlier in the game than I have put them on the upgrade list.

David Buschur
www.buschurracing.com

i just passed CA emissions with buschur 3" turbo back with higlh flow cat and stock box (for carb reasons) last weekend.
i even passed visual at the place i was at with the mini battery and greddy catch can.

you should run your staged bolt ons (moving from here to pipes , intercooler ,pump ,injectors and so on) with the s-afc2, flash and aem. I know its a decent amount of work but it will put peoples thoughts to rest about the aem and the flash . just my .02 btw i like the approach your taking on this testing...props to you guys for sure.