Pgasa Interclub Dyno Day 2 - 18th Of October

[DSTROY]

ok, no probs Im thinking of getting cam gears now as well, might as well get everything put on at the same time so i only have to get it tuned once.

[Krishy]

cool cheers chad

once you get the link mate let us know

[SLED]

Chad the idea of adjustable cam gears is to shift the power and as you can see below, SK only changes the EX gear and retards it approx 4 deg as a starting point.

I bought 2 JJR adjustable cam gears from Just Jap and should've only bought one so I have a spare gear if you're interested. The gurus interstate i.e. Duncan etc swear by the JJR gears.

Hi Rob, by retarding the exhaust camshaft timing I am aiming for more mid range, but I can get a bit of top end as well. There is also some faster spooling to gained as well. What it achieves is more complete combustion, before the exhaust valves open. Plus you get slightly higher combustion pressure, for more torque.

You don't get something for nothing though, it also means you get less overlap, the inlet valve isn't open at the same time as the exhaust valve for as long. This means the incoming inlet charge (air and fuel) doesn't help push the exhaust out. This is why it works well with a bit of extra boost (above standard) as that offsets the shorter "push" time.

cheers:

On inlet cam timing adjustment? Very little difference, not worth the effort.

Cheers

gary

and check the 2nd page of this thread Re: JJR Cam Gears

and this JJR Cam Gears

................AND THIS

[Madaz]

ok here is a little tit bit

[J - Rad]

LOL! all I see and hear is redline and smoke, thats about it! Awesome work Pete

[SLED]

haha good work Steve, now show a clean run please

buggered if I know how that run made 299KW

[J - Rad]

I'd love 299kw! Can I borrow some?

[SLED]

its done a 335KW as is with the same rich tune so with an adjustable EX cam gear and a decent tune it should pull 350KW with the current mods

[Madaz]

i think that was you good run 302 rwkw

[SLED]

lol.......I'd hardly call bus exhaust fumes a good run

[Madaz]

sorry my bad i dont seem to have the 302 only the 299 wasn't much difference

[Krishy]

sorry my bad i dont seem to have the 302 only the 299 wasn't much difference

the 302 run was a clean run

no bus smoke on that run

[Damo_R34]

oh well, 3kw is as much power as a sneeze, not much difference

[Krishy]

oh well, 3kw is as much power as a sneeze, not much difference

its 3 kw that would push you past 200rwkw mark wont it damo

plus it was a much much cleaner run

[DSTROY]

Hey guys, my mate try'd to upload that video onto his computer but he couldn't get it to work, maybe cos the camera is pretty old

i think the extra 3 kw was made be the water that was sprayed onto the intercooler on the last run.

[Damo_R34]

the JustJap.com website says they are out of Single RB JJR cam gears

[DSTROY]

I bought 2 JJR adjustable cam gears from Just Jap and should've only bought one so I have a spare gear if you're interested.

Awesome, let me know what you want for it.

[SLED]

and they've still got their old prices listed......I think their next batch will be dearer due o the $AU.

Chad it's still sealed in the plastic wrapper, you can have it at the old price (what I paid for it) and save on freight too