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26/30 Tensioner Pics

huddy

By huddy,
in Engines & Forced Induction

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huddy Veteran

huddy

Posted
Posted

hi,

was wondering if I could see a few variations of tensioner / idler setups for the old 30det.

Also what modifications were required to the lower and upper covers (if any) were made (also 30 lower cover / 26 lower cover??)

My twin pulley (idler and tensioner) was done by nisspeed and is a bolt on application (i believe). I'm using a 30 lower cover and all the holes line up and i had to cut out the side and weld in a rolled section for the bulge of the idler (on the exhaust side).

I mated this up with a 26 top cover and the gap is hideous, the belt is close to the cam gear cover (again on the exhaust side) at the very bottom of the cover...

I think I will have to modify the cam gear cover (shorter) - then extend the lower cover (higher) to the right shape... and right clearances....

lets see some pics.

cheers

-matt

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BoostdR Mentor

BoostdR

Posted
Posted
hi,

was wondering if I could see a few variations of tensioner / idler setups for the old 30det.

Also what modifications were required to the lower and upper covers (if any) were made (also 30 lower cover / 26 lower cover??)

My twin pulley (idler and tensioner) was done by nisspeed and is a bolt on application (i believe). I'm using a 30 lower cover and all the holes line up and i had to cut out the side and weld in a rolled section for the bulge of the idler (on the exhaust side).

I mated this up with a 26 top cover and the gap is hideous, the belt is close to the cam gear cover (again on the exhaust side) at the very bottom of the cover...

I think I will have to modify the cam gear cover (shorter) - then extend the lower cover (higher) to the right shape... and right clearances....

lets see some pics.

cheers

-matt

hey huddy, mine is the same...since we both have the OS giken copy tensioner plate. You will have to extend the lower cover and tig up the top cover lower passenger side. i haven't bothered as the top cover doesn't fit under the bonnet. its the price to pay to have the cam wheels line up perfectly and retain proper timing belt tension.

huddy Veteran

huddy

Posted
  • Author
Posted

Nice - thanks matt! - I was wondering about yours! didn't realise it was a OS giken style setup - cool.

I've ordered a clear top cover - and I'm going to cut the bottom of that - and then extend the lower cover taller!

Getting the motor ready to be dropped in finally! :banana:

Have you had yours fully re-tuned with another fuel pump yet?

BoostdR Mentor

BoostdR

Posted
Posted
Nice - thanks matt! - I was wondering about yours! didn't realise it was a OS giken style setup - cool.

I've ordered a clear top cover - and I'm going to cut the bottom of that - and then extend the lower cover taller!

Getting the motor ready to be dropped in finally! :)

Have you had yours fully re-tuned with another fuel pump yet?

I have the additional fuel pump in, feels stronger already. The Fuel pressure is perfectly stable now. Will get it happening on the dyno soon.

  • 3 weeks later...
  • 4 weeks later...
Gerg_R31 Mentor

Gerg_R31

Posted
Posted (edited)

$260, that was the first sample, but they are remaking the mold as there is very little room between the water pump pulley and the lower cover

yeah its the 3 layer carbon fibre not the 1 layer with fibre glass as u see how it looks like glass

Picture-0123.jpg

the other covers arent bolted down they're just sitting there but as u see they pretty much line up

Edited by Gerg_R31
  • 2 weeks later...
tm_r33 Experienced

tm_r33

Posted
Posted

i can chuck up some photos idler/tensioner on my 25/30 if that will help. lol timing covers look shit when u twin cam the 30 block.

and yer i had to cut mine in 2 spots and probably need to take sum more out to gett better belt to cover clearance

  • 1 month later...

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