Quote "The reason I wouldn't think the deluxe kit would make any difference is the core and end tanks are exactly the same. The only difference is the inlets and the fact that the deluxe kit comes with that short lower i/c pipe. I wasn't expecting any power gains from that lower i/c pipe. "

I think what you are seeing is Dave saying that he didn't expect to see any differnce between the 2 intercoolers, because of the above statement. What the dyno results show is there is a 6-8 WHP difference between the 2 and the only difference is the inlets and the shorter lower IC pipe. He wasn't expecting this from that lower pipe.

 

That is correct fixem2. I don't want to advertise that the power gain between the two FMIC kits are different. They dyno showed a slight increase between the two and I just don't personally believe that the lower pipe is worth 6 whp.

David Buschur
www.buschurracing.com

 

Good stuff David....Have you heard anything on the HKS 280 cams? I mean do they make that much of a diff. ?

 

They are still on my workbench, I haven't put them in yet.

David Buschur
www.buschurracing.com

 

Cant wait to hear how those work out...Get those guys in there!

 

I cannot believe the work involved with the amount of testing we are doing. I was here all day on Saturday trying to figure out problems then it ran over into Monday then Tuesday. Just baffling the hell out of me.
Quick run down of where I left off:

Stage 2 w/flash 320/329

Stage 2 w/flash, standard FMIC intercooler. 333whp/339ft lbs

Stage 2 w/alky and alky flash, 345whp/360ft lbs

Stage 2 w/AEM EMS, speed density, deluxe FMIC, magnacores, 335whp/331 ft lbs

Now for the real updates.

Stage 3. Put the 272 cams in the car. The car just absolutely came alive. The tires tried to just rip off the rollers. The tire spin was absolutely nuts. The tire spin will cause a spike in the curve and this part of the curve cannot be used as an accurate measure of horsepower. We tried to move the car around and drop the air pressure all the way down to 20 psi to keep it from spinning and just really couldn't get it under control. Using the most accurate pull we could get we still had a large curve where the tires spun and read 382 whp. This is not a number I am advertising, just explaining what is going on in testing. After the car hooked up it layed down a beautiful flat curve. Numbers were 368 whp/351 ft lbs.
A very nice 33 whp gain and 20 ft lb increase in torque. As a side note there is NO place on the curve that the 272/272 cams made less horsepower than the stock cams, so no loss in low end power at all.

After this I was finally getting concerned with the stock fuel pump still being in the car. We dropped in our high output pump. There was no change in air fuel ratios, telling me that the car still was not out of pump. Good to be safe. BTW, car is still on stock injectors.

Now is the really messed up part that has left me scambling since Saturday morning.

We started testing throttle bodies last week. I posted the results. I WAS DEAD a** WRONG ABOUT THE RESULTS. I don't know if I was seeing what I wanted to see or what. I had the two dyno charts flipped. In other words the last one was on top and the first one was on the bottom. This lead me to believe there was NO gain from the throttle body bolted to the stock intake. I WAS WRONG. I read the chart wrong. The 65 mm throttle body, both ours and Works, did gain HP. No peak HP was gained but it smoothed out the dips in the run and in those dips the gains were 3-5 whp. This is even with the stock hole still in the intake. Sorry for posting the wrong information.

Next thing we wanted to try was the Extrude Honed intake with the 65 mm throttle body. This is when the testing went down hill and has cost me 5 nights of sleep. The power dropped. The boost dropped. I had the intake off the car 3 times, the throttle body off atleast 8 times. No matter what I did I could NOT maintain more than 16 psi of boost at redline. EVERYTHING was checked or eliminated. The only change was the intake and throttle body. The low end tire spinning monster was gone. The car was lazy to spool and had no boost at redline. Before the intake we were able to hold 19 psi in the 7,000-7500 range. Now max boost in that range was 16 psi. Power was down but I have to attribute this to the dropped boost as I know the Extrude Honed intake will make more power. Ended up no matter what we tried all we could make was 356 whp and 359 ft lbs.

We then decided something was terribly messed up. I bolted on our sheetmetal intake (Magnus builds it for us) with the 3" throttle body. Results were the same. 16 psi of boost at redline and even less power than the extrude hone with the 65mm!

Put the Extrude Honed intake back on and bolted the stock throttle body to it. With the intake hole opened up it made the 65 mm throttle body perform even better. 8-10 whp across the board was lost using the stock throttle body.

We (as a whole at the shop) came to the conclusion that the car was being choked down by the stock turbo assembly at this point. Yes, I know more power than this can be made on the stock turbo. Although on straight pump gas 368/351 is getting up there.

The next parts we wanted to test was the ported exhaust manifold, 02 housing and turbine housing. All of these parts are also ceramic coated, they can be seen on our website. We bolted the bone stock turbo back into these ported housings. When unbolting the old stuff we inspected it all for any exhaust leaks or boost pressure leaks, nothing was found.

HOLY FREAKING CRAP!!! All of the low end power was back plus some! The boost was back too. Crazy-crazy power now. You could smell the smoke in the dyno bay from the tires spinning.

Peak power with that spike I explained earlier was 407. Once again I can't use those numbers but I am just explaining the results. Once the tires grabbed the curve from there out was again nice and flat. 373 whp and 366 ft lbs of torque.

The boost was now back up where it was, close anyway. 18.5 psi in the 7,000-7500 range. The stock turbo just cannot keep up with the engine at this point. (WE NEED THE 20g!!)

I only made the one single pull last night and those were the results. I need to add some fuel to the car now and plan to dyno again later today. I would like to try and settle the tire spin down some and get a nice flat 375 whp curve on straight 94 octane. As violent as the turbo hits now it may not be possible to get rid of the spin. Going to try after lunch.

Take care guys,

David Buschur

 

Wow... that is all I can say. Makes me wonder if I should throw on this sheetmetal intake or just wait.

 

I'm on edge waiting to hear these results. Keep us posted!

 

Don't know if this was already mentioned, but does this car still have the stock clutch on it?

 

Keep it up DB, your still kickin ***.

 

David , This is some of the best info on Evom.net ! But why is there not a big jump goin from the flash to the aem ?

 

I am wondering the same thing.

 

My guess would be the tune. I bet david kept the tune on the AEM a bit on the conservative side.

 

I think it just goes to show how good these flashes really are. The AEM is better geared toward higher HP "race only" cars, Where u need to moniter and change things for each "race" Just a guess though

Put those 280's DaVe!!!

 

Its probably because he left the Mass Air Fuel Sensor.