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The T in my head, thoughts?

I'm jealous.

Out here in калифорния they're gonna give me the business. That is, if I can register it at all.
 
I was very surprised and extremely thankful for how smoothly the entire process went down. It'll be a strange feeling having historic vehicle plates on my mail order Tbucket kit with a 90's euro drivetrain and fuel injection, lol. But I'll take it, it gives me another story to tell.
 
If it helps, I have registered 3 T-buckets in CA by going to the DMV window at AAA, not to the DMV. It was painless. PM me for more info if you want.
 
Coming up on a month since it's been on the road, taking it out every opportunity. Had some chilly mornings in the bucket, reaching below 20°F. Been working diligently on getting the computer system and fuel injection dialed in.

I noticed on datalogs from the EFI that the supercharger isn't getting into boost.

94kpa.jpg


The max it hit was 94kpa in an 84kpa atmosphere. Roughly 1-2psi of boost. I'm going to first explore the possibility of belt slip first, by the amount of black powder all over the front of the engine I'd say it needs addressed just the same.

Started mocking up and tacking into place the brackets, gussets and supports for the added belt tensioner:

20220206-134737.jpg


20220206-134710.jpg


I have more materials on order to finish up the tensioner project, as well as tear back into the the valve train and dial in the next cam timing experiment. I am truly hoping the added tensioner resolves the lack of supercharger boost.

After reviewing this camera angle and seeing the amount the belt deflects on the one side I'd say the odds are in my favor:

 
Belt tensioner success. I can't say the belt slip is 100% gone, but by the behavior of the around town driving it has really woke up. At 85% throttle at 4300rpm I logged roughly 6psi of boost from the SC. I haven't pushed it enough yet to see where max psi is at yet.





Even not in boost, while still reading under atmosphere pressures I needed to add quite a bit of fuel, meaning more air flow is moving through the engine. I am on the hunt for an aramid cord serpentine belt to reduce belt stretch
 
Impressive. Did you build that whole assembly? Where'd the short coilover come from?

I'm curious, could you adapt some cogged blower pulleys and belt?
 
As I remember my blower pressure stayed at 3 or 4 lbs. just driving around but when you put it on the mat it pegged the 10 lb. gauge.
 
I thought you didn't want a lot of belt tension when the blower is cold because of how much the blower and manifold expand when they get hot after an hour or so of running. Is that wrong? Maybe that is just for a cogged belt
 
What you say is true, but I think the idler arrangement allows enough flex to account for that thermal expansion.
Much application detail. There is a lot of variance based on different components and combinations. I would be detail oriented when researching for a specific application.
 
Had an opportunity to get out of my town for a weekend, loaded up the bucket and took it with me. Cruised it to some of my favorite spots around Tempe & Scottsdale. Really had a killer weekend.







I'm slowly convincing myself to add a shorty T truck bed around the fuel tank.
 
I call the full length headers and mufflers my "Quiet Pipes" and the Zoomies the "Loud Pipes" Although they truly are just loud pipes and louder pipes. I felt running the zoomies on the street may be the tipping point for a police officer to pull me over, it makes the drive a bit more stressful. More exciting, but more stressful. With the quiet pipes on it's not nearly as much of a stressful drive.

I do need to re-make my zoomies, and I will at some point in time. But for now the quiet pipes are serving their purpose.
 

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