On a majority of N/A performance sites Alot of Builders Recommend as a weight/space saving option to remove the charcoal canister, But Is it "Recommended" to do it? The mod in itself is easy enough to do with minumum Spending on parts but There isn't much performance gain, just a cleaner engine bay with a nice new Catch can addition. BTW the Weight loss??? maybe not the best term to use hahaha :naughty:
I've seen this a few times but....
- Thread starter RedComet13
- Start date
There is no performance gain.......
But I do understand the clean engine bay issue,
if your engine bay is actually clean, not all grungy like I see so many Supras.....
But I do understand the clean engine bay issue,
if your engine bay is actually clean, not all grungy like I see so many Supras.....
There is no performance gain to remove the charcoal canister, and if you do your fuel pump will hate you. There's lots of info on this board about why you shouldn't remove it. You can always relocate it to under the fender if you really don't like looking at it.
Asterix
Asterix
I haven't done it, But may have considered it at one point due to the mass of suggestion on other sites, But its luckily Supra forums exist or someone could mess up their Fuel system without thinking of the consequences.:3d_frown:
little hijack, the stock charcoal canister IIRC is controlled with the stock TCCS and vsv vales, for someone going standalone how would they keep this and remain proper function?
nosechunks;1377965 said:
I believe you are thinking about the fuel pressure up VSV. The charcoal canister uses a mechanical (temp operated - located on the T-stat housing) BVSV to allow canister vapor to be pulled into the intake manifold. The canister also has check valves inside to maintain a 2 psi positive pressure inside the tank.
Ahh i knew there was some type of vsv.
So can you use that same bvsv on the thermostat housing or would a temperature controlled source work better? What about when in boost? is it valved internally or does it have something to shut it off?
It uses ported vacuum from the throttle body, vacuum only when the throttle is cracked open (or at last it looks that way in the diagram http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=EC&P=6 ) Would using direct manifold vacuum be too much? will be going to a FFIM sometime but for now is stock throttle body.
So can you use that same bvsv on the thermostat housing or would a temperature controlled source work better? What about when in boost? is it valved internally or does it have something to shut it off?
It uses ported vacuum from the throttle body, vacuum only when the throttle is cracked open (or at last it looks that way in the diagram http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=EC&P=6 ) Would using direct manifold vacuum be too much? will be going to a FFIM sometime but for now is stock throttle body.
The TB port for the BVSV is ahead of the TB plate so it does not suck fuel vapor at idle...that could affect idle RPM and/or idle AFR.
The BVSV is mounted on the T-stat housing...it's operation is based on coolant temp. The early motors did not have the BVSV. This is an idle emissions enhancement on the later motors.
The charcoal canister prevents boost from entering it with a check valve when the BVSV is open.
The BVSV is mounted on the T-stat housing...it's operation is based on coolant temp. The early motors did not have the BVSV. This is an idle emissions enhancement on the later motors.
The charcoal canister prevents boost from entering it with a check valve when the BVSV is open.
There are a bunch of cars with nicer ones, not just the 1jz. I suggest plastic, no rust to deal with unless you want to powdercoat it, or paint it, or polish and etch it or something...lol.