I've set myself up for another repair bill. Installed the new exhaust and essentially new injectors over the weekend, which means something else is gonna break.
Exhaust consists of 1 5/8" Hedman Hedders (thanks Nate!), a generic X-pipe (thanks to Eric and thanks to Tom for bringing it to me from Georgia), MAC Mustang flow tubes from Mustangsunlimited.com, the cheap $15 Summit turbo mufflers and Impala SS tails, plus misc extension pipes and turndowns as needed. Getting it all bolted up was a pain in the ass, those header collectors are big enough to make getting bolts into them rather difficult. Can't fit a socket in there, so I had to do the 1/4 turn at a time crap with an open end wrench. Exhaust hangs under there really nice, no low spots, no leaks, and I'm pretty happy with the sound. Its not loud and annoying, and the only time it drones is when I'm lugging along in overdrive around 45 mph. Since I don't really do that, its not an issue. Not much power change at the low end, a slight loss if anything but top end moves rather well. I think Scott has some pics of it which I'll try and upload at some time.
I also swapped in a set of injectors that I got from MrLTD. The off-idle hesitation/stumble is now completely gone and overall the throttle response is improved. I'll fill the tank up when I leave tonight and see if it sucks less fuel on the trip home. I'm hoping between the injectors and the exhaust it should do somewhat better. Intake vacuum is still somewhat low, 16" but I just can't find any leaks. I'm really thinking its just the heads are crap. Some weekend I'll bump the cam timing up, and down the road it'll get better heads.
Exhaust consists of 1 5/8" Hedman Hedders (thanks Nate!), a generic X-pipe (thanks to Eric and thanks to Tom for bringing it to me from Georgia), MAC Mustang flow tubes from Mustangsunlimited.com, the cheap $15 Summit turbo mufflers and Impala SS tails, plus misc extension pipes and turndowns as needed. Getting it all bolted up was a pain in the ass, those header collectors are big enough to make getting bolts into them rather difficult. Can't fit a socket in there, so I had to do the 1/4 turn at a time crap with an open end wrench. Exhaust hangs under there really nice, no low spots, no leaks, and I'm pretty happy with the sound. Its not loud and annoying, and the only time it drones is when I'm lugging along in overdrive around 45 mph. Since I don't really do that, its not an issue. Not much power change at the low end, a slight loss if anything but top end moves rather well. I think Scott has some pics of it which I'll try and upload at some time.
I also swapped in a set of injectors that I got from MrLTD. The off-idle hesitation/stumble is now completely gone and overall the throttle response is improved. I'll fill the tank up when I leave tonight and see if it sucks less fuel on the trip home. I'm hoping between the injectors and the exhaust it should do somewhat better. Intake vacuum is still somewhat low, 16" but I just can't find any leaks. I'm really thinking its just the heads are crap. Some weekend I'll bump the cam timing up, and down the road it'll get better heads.
Comment