Another timing question

Got home today and took it for a spin. Once it lights, it's gone. But even at 20*, I'm a couple hundred rpm from doing a decent boosted launch. Honestly though, if I shift it manually and keep it around 2000rpm, it's drives pretty well and it's not terribly smokey.

Anyway, I've already called Goerends about getting a stock stall. I never was a big fan of the low stall converters anyway.

Like NickTF said though, once I get the stock stall converter in, I'll probably jump it back up to 24* or more.
 
Install yourself a ratchet shifter in the truck and thank me later:). Shifting the truck manually really makes street driving night and day better!
 
Yep, I've got a Magashifter :rockwoot:

It's funny, I bought it for the track, but usually leave it in drive. But use it all the time on the street.
 
It turns out that I was having trouble building boost mainly due to the intercooler. Some of the fins inside the tubes had come apart, and partially blocked some of the tubes. At low rpms it didn't have enough pressure to push much air through, that raised my spooling rpms past what the coverter would allow, and the timing made it even worse.

I finally split the intercooler (probably from back pressure), and pieced all of this together after cutting it open to inspect the damage. After seeing the damage, I decided to rule out all intercoolers that have any type of fins or similar inside. That ruled out the Spearco (whiched looked like it would cool really well) and a most others, and left my buying a BD. Theirs looks like it may not cool as well (that's purely my speculation), but would be stronger and flow well due to having channels instead of vanes or fins.
 
WEll its good you found your issue before swapping the TC out. I really was having a hard time believing that you couldnt spool a 62 enough to get up on the convertor.
 
Yeah, I'm glad too. Although I'm still giving that some thought.

After looking at timeslips, my last run with the 5x16s fell off, but it wasn't a big deal at the time. Next day at the track was with 5x18s. First run was the best, and then so-so, then I started to mess with the timing.

At the time, it seemed like an injector issue compounded by the timing. Now it's like...:doh:

I never saw that coming, that's for sure. Especially considering that I was still getting 85-90psi on the top end. I hate to think how much pressure was on the turbo side of the intercooler. I'm glad it finally went or I'd still be scratching my after a converter swap.

Oh well, on the positive side, it did 11.9 with the intercooler coming apart. Main thing I'm worried about now is how much of that debris made it into the engine.
 
^^^ I would really like to see pictures describing what you're talking about if possible Drothgeb.
 
Basically, it looks like heat/pressure deteriorated the fins at the beginning of the tube, As they failed, they were pushed further in the tube creating somewhat of an air dam from the mass. Once the fin damage extended a couple of inches into the tube, the tube balloned and the seam between the tube and tank split.

I'm seeing this from holes I've cut in the front of a few tubes, but I'm not sure how well I can photograph it. Once the new intercooler shows up, I'll pull this one out and cut the tank off. That will give a much better view and show the real extent of the damage. I'll post some pictures then.
 
Drothgeb said:
Basically, it looks like heat/pressure deteriorated the fins at the beginning of the tube, As they failed, they were pushed further in the tube creating somewhat of an air dam from the mass. Once the fin damage extended a couple of inches into the tube, the tube balloned and the seam between the tube and tank split.

I'm seeing this from holes I've cut in the front of a few tubes, but I'm not sure how well I can photograph it. Once the new intercooler shows up, I'll pull this one out and cut the tank off. That will give a much better view and show the real extent of the damage. I'll post some pictures then.
Click to expand...

Thanks, would be very much appreciated.
 
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