Mike C
05-10-2004, 12:16 AM
I want to update everyone on what's going on with my car. I'm not trying to draw any attention to myself but answering the same questions over and over again in person, on the phone, and on the board has become a little overwhelming and annoying. I figure I will just post the current status instead of sounding like a broken record to myself:
The good
As many know, the car did really well on the dyno and made good power. The car made 532whp and 665whp with nitrous. It also made 601 ft/lbs of torque with spray which was really impressive. (See Jake, a 2.0l can still make mad torque :D ). There is still some room for improvement. I'm going to start by getting rid of the big Baer brakes which will free up another 20hp or so. The turbo spools very well for being so big and the idle and driveability of the car is truely awesome considering the mods on the car. I now have the car back here in Columbus.
The bad
When the T-case and driveshaft went back into the car, we began running into problems. The main issue is that the load placed on the car in 4wd and on the street is a good bit greater than the Dynojet. (This is where the newer 4wd dynos will have a nice advantage). We began to run into fuel delivery problems around 6800RPMs or so. My current fuel setup is 2 255hp pumps. The plan was for 1 pump to run all the time and the 2nd pump to only come on when I was spraying. Basically, the 1 pump just couldn't cut it. If we ran both pumps, the fuel delivery is there but the tuning headaches were aweful. We can't get a stable A/F ratio because the 2 pumps kind of fight each other and aren't stable enough. The solution: Fuel cell, external pump, -10 line up, and -8 line back. A lot of extra work, firewall fabrication, moving the battery(again), N20 bottle move ETC. Its going to take some time and I'm a little grouchy about it.
The Ugly
Dave B trailored the car here on Friday and my friend Mark met him because I was at Midohio. They met at my warehouse on campus and Mark was going to drive the car to GC for me. All of the dyno and road tuning so far has been done with no air filter on the turbo. I told Mark though that I wanted him to put the pipe and filter on before he drove it to GC. He did. Everything was fine until he got off the freeway and he heard a bucking sound and screech. He limped it home and pulled the filter off. The compressor wheel wasn't spinning. I got home tonight and pulled to compressor cover off only to find the remnants of a chewed up washer that destroyed the compressor wheel and had it seized up to the cover. Fortunately, it looks like it all stayed there and didn't force its way up through the intake tract. I reinstalled the cover and the car fired right up with the wheel spinning and rubbing the cover slightly. The turbo is now off the car completely and will be on its way up there tomorrow. It really was a fluke and nobody's fault directly. I'm guessing the washer got lodged in 1 of the pleats on the inside of the filter and then finaaly pulled itself loose.
So thats where I'm at. Hopefully things will come together quickly but I won't be running anytime soon. I have alot of things to clean up on the car while its down and address some shadiness issues that Switzer pointed out. My new goals are to get things going by early July so I can get things dialed in before the Shootout. I was excited to have a lot of runs but oh well....shit happens I guess.
The good
As many know, the car did really well on the dyno and made good power. The car made 532whp and 665whp with nitrous. It also made 601 ft/lbs of torque with spray which was really impressive. (See Jake, a 2.0l can still make mad torque :D ). There is still some room for improvement. I'm going to start by getting rid of the big Baer brakes which will free up another 20hp or so. The turbo spools very well for being so big and the idle and driveability of the car is truely awesome considering the mods on the car. I now have the car back here in Columbus.
The bad
When the T-case and driveshaft went back into the car, we began running into problems. The main issue is that the load placed on the car in 4wd and on the street is a good bit greater than the Dynojet. (This is where the newer 4wd dynos will have a nice advantage). We began to run into fuel delivery problems around 6800RPMs or so. My current fuel setup is 2 255hp pumps. The plan was for 1 pump to run all the time and the 2nd pump to only come on when I was spraying. Basically, the 1 pump just couldn't cut it. If we ran both pumps, the fuel delivery is there but the tuning headaches were aweful. We can't get a stable A/F ratio because the 2 pumps kind of fight each other and aren't stable enough. The solution: Fuel cell, external pump, -10 line up, and -8 line back. A lot of extra work, firewall fabrication, moving the battery(again), N20 bottle move ETC. Its going to take some time and I'm a little grouchy about it.
The Ugly
Dave B trailored the car here on Friday and my friend Mark met him because I was at Midohio. They met at my warehouse on campus and Mark was going to drive the car to GC for me. All of the dyno and road tuning so far has been done with no air filter on the turbo. I told Mark though that I wanted him to put the pipe and filter on before he drove it to GC. He did. Everything was fine until he got off the freeway and he heard a bucking sound and screech. He limped it home and pulled the filter off. The compressor wheel wasn't spinning. I got home tonight and pulled to compressor cover off only to find the remnants of a chewed up washer that destroyed the compressor wheel and had it seized up to the cover. Fortunately, it looks like it all stayed there and didn't force its way up through the intake tract. I reinstalled the cover and the car fired right up with the wheel spinning and rubbing the cover slightly. The turbo is now off the car completely and will be on its way up there tomorrow. It really was a fluke and nobody's fault directly. I'm guessing the washer got lodged in 1 of the pleats on the inside of the filter and then finaaly pulled itself loose.
So thats where I'm at. Hopefully things will come together quickly but I won't be running anytime soon. I have alot of things to clean up on the car while its down and address some shadiness issues that Switzer pointed out. My new goals are to get things going by early July so I can get things dialed in before the Shootout. I was excited to have a lot of runs but oh well....shit happens I guess.