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Search found 70 matches

by BLSTIC
Mon Apr 27, 2020 12:16 am
Forum: Engine Tech
Topic: Checking a long block without disassembly?
Replies: 6
Views: 418

Re: Checking a long block without disassembly?

It's what I expected to hear as I can't see a viable way of doing it.

Not what I wanted to hear though :(
by BLSTIC
Sun Apr 26, 2020 9:51 pm
Forum: Engine Tech
Topic: Checking a long block without disassembly?
Replies: 6
Views: 418

Re: Checking a long block without disassembly?

Ej20g, v3 wrx (94-95-ish, first one with shim over bucket cam followers)
by BLSTIC
Sun Apr 26, 2020 9:08 pm
Forum: Engine Tech
Topic: Checking a long block without disassembly?
Replies: 6
Views: 418

Checking a long block without disassembly?

I'm looking at buying an ej20g (94-95 ish. Shim over bucket cam follower) and I want to be able to check it before buying. Of course it was "a good running motor before removal" but that's not reassuring seeing as it's been two owners without being in a car. Can I test the condition of the big ends ...
by BLSTIC
Sun Apr 19, 2020 11:48 pm
Forum: Engine Tech
Topic: engine power estimates ATK/PROFILER 210cc 383 solid cam/video running
Replies: 16
Views: 1078

Re: engine power estimates ATK/PROFILER 210cc 383 solid cam/video running

So yeah, here's your completely amateur* dyno plot.


*meaning to be taken with a grain of salt because I've literally never specced an engine to be built myself, let alone have enough experience to say it looks right for the parts involved
by BLSTIC
Sun Apr 19, 2020 11:24 pm
Forum: Engine Tech
Topic: engine power estimates ATK/PROFILER 210cc 383 solid cam/video running
Replies: 16
Views: 1078

Re: engine power estimates ATK/PROFILER 210cc 383 solid cam/video running

Unless I did something on engine analyzer wrong I got 469hp @ 6000 and 436ft-lb @ 5000, decent torque (over 350) from 2800 up. Had to estimate a few things Wow that seems low . I have got that from much less head and cam . What took it down ? I was estimating 500-525 . Come to think of it I think I...
by BLSTIC
Sun Apr 19, 2020 1:21 am
Forum: Engine Tech
Topic: engine power estimates ATK/PROFILER 210cc 383 solid cam/video running
Replies: 16
Views: 1078

Re: engine power estimates ATK/PROFILER 210cc 383 solid cam/video running

Unless I did something on engine analyzer wrong I got 469hp @ 6000 and 436ft-lb @ 5000, decent torque (over 350) from 2800 up.

Had to estimate a few things
by BLSTIC
Sat Apr 18, 2020 9:40 pm
Forum: Engine Tech
Topic: Aluminium brazied inlet manifold construction (eg Durafix)?
Replies: 1
Views: 302

Aluminium brazied inlet manifold construction (eg Durafix)?

So are there any thoughts on modifying an aluminium inlet manifold (specifically replacing the plenum on a wrx) by brazing? I think the runners are an ok size but too long and shortening them makes a large plenum (or two) necessary, and I don't have an aluminium capable tig. I do have an oxy and a b...
by BLSTIC
Sat Apr 18, 2020 12:34 am
Forum: Engine Tech
Topic: Direct from Youtube - step right in......Alien Valves
Replies: 31
Views: 1620

Re: Direct from Youtube - step right in......Alien Valves

I'd be wary of using it on a big dollar engine because of the heat that even inlet valves need to shed. I recall DV talking about seeing inlet valves glowing during dyno pulls on a car with a straight enough intake tract. This would make heat transfer harder and it's tiny stuff at high speed that's ...
by BLSTIC
Thu Apr 16, 2020 6:29 pm
Forum: Engine Tech
Topic: Suzuki F6A: 657 ccs of fury for a kei car
Replies: 16
Views: 1328

Re: Suzuki F6A: 657 ccs of fury for a kei car

If you want a truly indestructible but exceedingly rare three cylinder, Daihatsu made the CB70/80. Based on the CB23/50/60/90 architecture with larger main bearings, dohc, efi, forged rods and pistons and 7:1 ish compression. I've heard of endurance races being done at 250hp and "stock rebuilds" (he...
by BLSTIC
Thu Apr 16, 2020 9:29 am
Forum: Engine Tech
Topic: Suzuki F6A: 657 ccs of fury for a kei car
Replies: 16
Views: 1328

Re: Suzuki F6A: 657 ccs of fury for a kei car

I've driven one of those. It was not-quite adequate in a 900kg car. I mean if I didn't live in a hilly city it would have been fine, or if it had boost. But there was a 1.3 K3-VE option available in that car, and that K3 was available turbocharged in other vehicles, so I would have been mad to turbo...
by BLSTIC
Thu Apr 16, 2020 1:13 am
Forum: Engine Tech
Topic: Suzuki F6A: 657 ccs of fury for a kei car
Replies: 16
Views: 1328

Re: Suzuki F6A: 657 ccs of fury for a kei car

I'm also curious about the manifold design. It will be interesting to see exactly what design and measurements work on a 3 cylinder car with such tiny cylinders. Also what duration cams are you thinking of running? I've been reading about blowdown interference and it's a concern on most engines, but...
by BLSTIC
Wed Feb 19, 2020 1:13 pm
Forum: Engine Tech
Topic: Suzuki F6A: 657 ccs of fury for a kei car
Replies: 16
Views: 1328

Re: Suzuki F6A: 657 ccs of fury for a kei car

So is it possible to raise oil gallery 8 and space the lifter body 9 up a mm or two?
by BLSTIC
Wed Feb 19, 2020 1:33 am
Forum: Engine Tech
Topic: Suzuki F6A: 657 ccs of fury for a kei car
Replies: 16
Views: 1328

Re: Suzuki F6A: 657 ccs of fury for a kei car

So you say the travel of the lifter limits the smallest bcd? Is that purely a limit when you're installing the cam and not a limit during operation? Can you fit the cam boxes with the cam already installed? Or hold the valves open during assembly, allowing the cam follower to not interfere with larg...
by BLSTIC
Tue Feb 18, 2020 3:40 pm
Forum: Engine Tech
Topic: Advantages of electric cooling fans vs mechanical
Replies: 27
Views: 1902

Re: Advantages of electric cooling fans vs mechanical

On a truck I'd keep the clutch fan. Average power requirement is pretty high compared to a car where I'd never have one except when towing. Whatever you choose though, ducting makes a huge difference. I've seen multiple vehicles go from overheating undriveable messes (even on the highway) to "fan on...
by BLSTIC
Tue Feb 11, 2020 4:30 pm
Forum: Engine Tech
Topic: Can u pick up hp
Replies: 14
Views: 992

Re: Can u pick up hp

I thought you meant old old. Never mind my ramblings then, they probably don't apply to the newer head designs. As much