(Catching up...) OST-079: When Cat Cams went dark
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06-10-2022, 06:25 PM
Post: #1
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(Catching up...) OST-079: When Cat Cams went dark
"Catching up" posts will be a single post from beginning to end
Inspection after arrival.... ITB smallport build It received its OST serial #.... and it got cleaned and tumbled... do you see it?? ... the massive chunk about to give way So why, "When Cat Cams went dark"? This build began in June 2021... the height of the pandemic... with significant supply chain issues.... and of course now is the time the Cat Cams gear cutter (the machine that cuts the distributor drive gear into the exhaust cam) fails... with no spare parts. Let me back up a bit. OST-078's, and OST-079's cams were to be ordered at the same time, one set was a pair of their 244 cams - OST-078, while OST-079 was to use a pair of Cat's 260/9.0mm cams.... BUT Cat only had one set of blanks with the exhaust cams drive gear cut...... Let me back up a bit further.... About 8 years back I purchased a set of Toda cams.... Are you getting where this is going??? OST-078 did indeed get its Cat cams - you can see the box in this post - http://www.aeu86.org/forum/Thread-OST-07...#pid176705 but, I was out of options with OST-079, so a substitution took place - my set of Toda cams were "sold" to the client. So back to the head.... and an interesting compound(multi-panel) photo. The center panel shows the 4 intake bowls, while the top/bottom show the matching bowls from each Btw... this is superb bowl-seat alignment for a smallport head. Lest us not forget the ITB adapter.... This one is the SQ adapter and I consider this one to be the "middle of the road" of the 3 adapters I know of (1st - Tec-Arts, 2nd - SQ, and last - T3) 2 down.... 4 down.... Finally OST-079 was fitted with a set of 1SZ shimless buckets. On the note paper you can see the 2nd 5 digits of the different buckeet part numbers, and how all 8 of the intake shims hit their mark of .008" clearance. Dan - You can | .... OR you can ask for help!!! OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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06-11-2022, 05:02 AM
Post: #2
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(Catching up...) OST-079: When Cat Cams went dark
Looks like incredible work as usual. Global supply was/is still very annoying. Thinks are slowly getting better again though in some areas.
AE86 ex-daily |
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06-13-2022, 05:04 PM
Post: #3
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(Catching up...) OST-079: When Cat Cams went dark
(06-11-2022 05:02 AM)Bean Wrote: Looks like incredible work as usual. Global supply was/is still very annoying. Thinks are slowly getting better again though in some areas.ty for your kind words....... As far as global supply, I seem to have dealt with the worst of it. Some things are still a bit sketchy*, while other things seem to be biz as usual. * - OST-082 The SQ adapter is machined for the silvertop throttle bodies - so I'm opening them for blacktop throttles Dan - You can | .... OR you can ask for help!!! OST Porting service - http://hachiroku.net/forums/showthread.php?t=19991 |
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