dyno session at Street Flight (kind of long) - 03/09/04 08:21 PM
Okay....
For a recap, my car at the 1000 mile break-in put down a best of 206 whp and 192 lb/ft of torque at the SHOshops Dynojet. The Superchip that SCA had gotten for me made no extra hp or tq. The SHOshop dyno session was with all the mods listed in my sig, minus the Proflow. The car also had SHOshops y-pipe with a hollowed cat.
I got to Street Flight Sunday morning, and Chris (Keyser) immediately tells me to put my car on the dyno rollers. He tells me I'll do the "driving" and he'll work the dyno, so that is cool, because I've only watched my car dyno'ed, I've never been part of the "operations". Anyways, as Chris sets up, I pull out my old Superchip, so we can get a quick baseline on the stock computer. Chris gives me a quick run-down on dyno etiquette (do's and don'ts), and we make the first pull. My car puts down a "staggering" 187 whp and is missing like I'm turning my car off and on every 2000 rpm's. The dyno didn't record the tq figures, so we do a second run, 189.92 whp and 173.06 max tq. We make a couple of more runs, and Chris is thinking that SHOshop's dyno is a little more optimistic than it should, because we're 16 whp down. I just then realize that sometime last year, I swapped out the SHOshop y-pipe for the MSDS y-pipe and put on the factory cat. Chris agrees that the factory cat is a huge restriction, and it could be accountable for at least 5 whp.
Chris then decides it's time to start playing. He removes my S&B Powerstack, we gain some hp. A few more pulls, we're still somewhere around the 192 whp range. Chris then pulls a trick, and get's out what the Rev. Po-Jay calls the "whiz-bang". The "whiz-bang" is an 18-22" long, 3.5" round ABS pipe which Chris used to simulate a larger air filter that will help straighten out the air coming in. He also points out that my stock computer is pulling timing out at the bottom end (which Vadim also noted last year), so he adds timing down low as well. We've now had like 10 pulls or so, and on the 11th pull, we hit 197.94 whp and 187.55 max tq. A few more tweeks on the chip by Chris and by the 13th pull, we're at 200.00 whp exactly, and 187.70 max tq. Keep in mind, the car just got done with a five hour drive, and maybe a 30 minute cool down while waiting for Chris. We also made most of these pulls back-to-back with the car only being shut-down for about 5-10 minutes at a time.
The 14th and 15th pull yield no more hp, and only a slight gain in torque.
A few more chip tweeks and the car is at 200.45 whp and 187.95 max. tq by the 17th pull.
The 18th pull gets us to 200.84 whp and 189.41 max tq.
Pulls 20 and 21 get us 200 whp and 190 max tq. These pulls are with some 108 race gas mixed with the crappy 91 that we get out here. Chris threw more timing at the car, but it didn't really work out, probably because of exhaust restriction. We used a flip-chip for this side of testing, but I forgot if Chris left that state of tune in the chip or not. I do know I have a flip program to go.
The final pull is number 23, with my S&B Powerstack back on for my drive back home. The filter is so restrictive that I'm back down to 196 whp and 185 max tq.
The peak numbers aren't telling the whole story here. I laid down the very first pull from the SHOshop over the number 20 pull from Street Flight on the Dynojet RunViewer. I'm making more torque and more hp everywhere from 2000 rpm up to 4600 rpms. I'm making as little as 3.5 lb/ft tq. more to almost 13lb/ft of tq. below 3500 rpms. I'm making less top-end power because my factory cat is still in place. Chris was even going to pull my factory cat out just for "5H!t's and giggles" to see how much my cat was obstructing, but it turned out to be a pain in the ass because of the bolts I had used to put it back in. So we never got to pull the cat out. The drivability of my car is also much better, and since it's more torquey, I'm finding myself downshift less.
I'm planning on pulling out my MSDS y-pipe and factory cat and putting in my "ultra high-flow" SHOshop cat, replacing my resonator with a Magnaflow one, and getting a new, larger air filter to allow more air in. I think that Demon has the filter that I need to get, and I was hinting to Chris and Jason to ask Keith to produce a true, fender draw CAI. Chris told me he thinks my car will probably put down close to 215 whp once I get the right filter and get my "ultra high-flow" cat back on.
What an awesome experience I had at Street Flight. Chris is absolutely great. I cannot believe that more people have not used him for tuning. I would gladly drive down there again to get more test and tune sessions. And special thanks to the Rev. Po-Jay for coming by for some moral support and praying! Watching Chris work his magic was something to be admired. It's amazing what he can do and tell you just by looking at numbers .
For an extra special send off, Chris took me for a quck ride in his SVT. My god what a quick car! I want to turbo my car later in it's life!
All the way home, I was playing with the throttle, it felt like a new car again!
I have no way of posting these dyno charts because my scanner doesn't work right, but I think that Chris can.
For a recap, my car at the 1000 mile break-in put down a best of 206 whp and 192 lb/ft of torque at the SHOshops Dynojet. The Superchip that SCA had gotten for me made no extra hp or tq. The SHOshop dyno session was with all the mods listed in my sig, minus the Proflow. The car also had SHOshops y-pipe with a hollowed cat.
I got to Street Flight Sunday morning, and Chris (Keyser) immediately tells me to put my car on the dyno rollers. He tells me I'll do the "driving" and he'll work the dyno, so that is cool, because I've only watched my car dyno'ed, I've never been part of the "operations". Anyways, as Chris sets up, I pull out my old Superchip, so we can get a quick baseline on the stock computer. Chris gives me a quick run-down on dyno etiquette (do's and don'ts), and we make the first pull. My car puts down a "staggering" 187 whp and is missing like I'm turning my car off and on every 2000 rpm's. The dyno didn't record the tq figures, so we do a second run, 189.92 whp and 173.06 max tq. We make a couple of more runs, and Chris is thinking that SHOshop's dyno is a little more optimistic than it should, because we're 16 whp down. I just then realize that sometime last year, I swapped out the SHOshop y-pipe for the MSDS y-pipe and put on the factory cat. Chris agrees that the factory cat is a huge restriction, and it could be accountable for at least 5 whp.
Chris then decides it's time to start playing. He removes my S&B Powerstack, we gain some hp. A few more pulls, we're still somewhere around the 192 whp range. Chris then pulls a trick, and get's out what the Rev. Po-Jay calls the "whiz-bang". The "whiz-bang" is an 18-22" long, 3.5" round ABS pipe which Chris used to simulate a larger air filter that will help straighten out the air coming in. He also points out that my stock computer is pulling timing out at the bottom end (which Vadim also noted last year), so he adds timing down low as well. We've now had like 10 pulls or so, and on the 11th pull, we hit 197.94 whp and 187.55 max tq. A few more tweeks on the chip by Chris and by the 13th pull, we're at 200.00 whp exactly, and 187.70 max tq. Keep in mind, the car just got done with a five hour drive, and maybe a 30 minute cool down while waiting for Chris. We also made most of these pulls back-to-back with the car only being shut-down for about 5-10 minutes at a time.
The 14th and 15th pull yield no more hp, and only a slight gain in torque.
A few more chip tweeks and the car is at 200.45 whp and 187.95 max. tq by the 17th pull.
The 18th pull gets us to 200.84 whp and 189.41 max tq.
Pulls 20 and 21 get us 200 whp and 190 max tq. These pulls are with some 108 race gas mixed with the crappy 91 that we get out here. Chris threw more timing at the car, but it didn't really work out, probably because of exhaust restriction. We used a flip-chip for this side of testing, but I forgot if Chris left that state of tune in the chip or not. I do know I have a flip program to go.
The final pull is number 23, with my S&B Powerstack back on for my drive back home. The filter is so restrictive that I'm back down to 196 whp and 185 max tq.
The peak numbers aren't telling the whole story here. I laid down the very first pull from the SHOshop over the number 20 pull from Street Flight on the Dynojet RunViewer. I'm making more torque and more hp everywhere from 2000 rpm up to 4600 rpms. I'm making as little as 3.5 lb/ft tq. more to almost 13lb/ft of tq. below 3500 rpms. I'm making less top-end power because my factory cat is still in place. Chris was even going to pull my factory cat out just for "5H!t's and giggles" to see how much my cat was obstructing, but it turned out to be a pain in the ass because of the bolts I had used to put it back in. So we never got to pull the cat out. The drivability of my car is also much better, and since it's more torquey, I'm finding myself downshift less.
I'm planning on pulling out my MSDS y-pipe and factory cat and putting in my "ultra high-flow" SHOshop cat, replacing my resonator with a Magnaflow one, and getting a new, larger air filter to allow more air in. I think that Demon has the filter that I need to get, and I was hinting to Chris and Jason to ask Keith to produce a true, fender draw CAI. Chris told me he thinks my car will probably put down close to 215 whp once I get the right filter and get my "ultra high-flow" cat back on.
What an awesome experience I had at Street Flight. Chris is absolutely great. I cannot believe that more people have not used him for tuning. I would gladly drive down there again to get more test and tune sessions. And special thanks to the Rev. Po-Jay for coming by for some moral support and praying! Watching Chris work his magic was something to be admired. It's amazing what he can do and tell you just by looking at numbers .
For an extra special send off, Chris took me for a quck ride in his SVT. My god what a quick car! I want to turbo my car later in it's life!
All the way home, I was playing with the throttle, it felt like a new car again!
I have no way of posting these dyno charts because my scanner doesn't work right, but I think that Chris can.
