Re: Turbo 3800 blazer
So, took this and the pic scoot to the track on sunday.
first run was a 13.58 @105 with a 2.2 60 ft. looked like it made around 14lbs of boost, and blew the fuel rail off at some point down the track.
a few degrees of timing later it ran a 12.8 @110 witha 2.2 60ft.
third run we leaned it out, and ran the same, 4rth run with 2 lbs more boost felt better, but they didn't record the time. Then they shut the track down.
went home and started playing with boost, we got it up to 18 lbs and it felt like the whole things woke up, and it was a totally different truck. This somewhat lined up with what I thought was going to happen, between the huge turbo and how the torque converter was going to act. its running on 20 psi and feels pretty quick...ecspecially compaired to when it was on the track.
The truck feels good going down the track, stays straight, brakes are increadible, although the launch is aweful. like, a 12.8 with a 2.2 60 is actually a decent first run IMO. that 60ft should be closer to 1.5, but its gonna take something extra to get it spooled fast enough. Right now its doing better than it was at the track, I think due to increased spring pressure. Its still taking about half of first to get it up to full power (as oppsed to all of first like at the track). Converters real tight to, brake torque+anti lag is only getting me about 2psi on the line @2500rpm.
list of things to do now:
1. steering. Almost all of my front end could be replaced, its all wiggly, and has play. I have no issue with duralast parts for all of it. Also I need to figure out power steering, hoping that a camaro power steeing line will work, I may go get one from autozone for a test fit.
2. exhuast hole. One small hole we found I need to fix, and the gasket for the gate is leaking a bit. horribly placed 38mm gate seems to control boost very well. Although these are small, I am hoping they help spool...a little bit.
3. maf. Right now I'm running a maxed out maf sensor. I cannot use a translator on it. I can drill out the 98 style maf hole i have in my throttle body to fit a 99 style and i can mod that. I have a maf ready to go in, just need to drill some hole.
4. heat, defrost. Need to rigg up a box. Motor seems to keep things decent in the cab, but when it gets really cold I need some way to keep the windows not frozen. I want to run a box out of a civic, and do some light plumbing work to get it pointed at the windsheild.
5. blinkers, wipers. Somehow I ruined those parts of my harness. I need to find them and re-connect them.
6. an acutal exhuast might noe be a bad idea, at least some kind of muffler. the motor loves rpm, but its just so loud, the whole truck resonates at 3200 rpm.
Thats basically it, everything so far seems great. I am very happy with the way its coming together. Also, if I start running my aluminum ty rims and tires I'd cut nearly 70 lbs off my rotating mass, whihc is good for at least a 10th...