Return Fuel Line on Triple Webers

[jonbills]

This rather nice 432-R rep doesn't.
https://www.gtr.co.uk/threads/1969-nissan-s20-twin-cam-engine-rebuild.236658/post-5747039

 

[Alphabettispaghetti]

Did the 432 have a return?

I had a look and couldn't see one.

its a 432-r i've got though.

 

[SeanDezart]

Is that the thinking mans' ccard company list :

The Blue Lion - drinking places
Union Tavern - drinking places
pret a manger - eating places
thetrainline - passenger railways

They must have some wally customers who don't know what's what or where they went

Maybe they're some experts here that really need to get off the chair and go drive a Z.

Besides, just how hot and for how long does it become in The Old Albion (not a drinking place) ?

 

[Alphabettispaghetti]

Is that the thinking mans' ccard company list :

The Blue Lion - drinking places
Union Tavern - drinking places
pret a manger - eating places
thetrainline - passenger railways

They must have some wally customers who don't know what's what or where they went

Maybe they're some experts here that really need to get off the chair and go drive a Z.

Besides, just how hot and for how long does it become in The Old Albion (not a drinking place) ?

unfortunately it’s the time of year when I have to compile 7 months of company credit card spending.

my bad Sean, I thought we were talking fuel return feeds and the reason why or why not.

 

[SeanDezart]

Sorry for you.

unfortunately it’s the time of year when I have to compile 7 months of company credit card spending.

my bad Sean, I thought we were talking fuel return feeds and the reason why or why not.

SeanDezart said: ↑

No return line.

If you need one - you're not driving fast enough

can you explain how this works?
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jonbills said: ↑

true. ish. but road cars are quite often stationary or running very slow.

On your jammed roads maybe

--------------------------------
No, my bad, I didn't realise just how serious and to heart some people are taking this.

 

[atomman]

Why was that? was it regulated? if you're providing 3psi, regulating after the carbs, you never risk over pressuring the carbs, also it'll maintain 3psi at max use.

Yeah regulated to 3.5 PSI after the carbs before the return , I was thinking that the return would keep the fuel kool and bypass the carbs easier if they didn't need any fuel but the last carb was running a bit lean at full chat , so fitted a better pump (more flow) and fitted the reg before the carbs , the dyno bloke has been tuning rally cars with Webber's for years so went with what he suggested , also in my head less joins = less to leak or break ,

 

[SeanDezart]

When I was running triple 45 Dellortos on my L31, the regulator was set at 2.5psi before the carbs with no return. The fuel pipe came up the bulkhead on the RHside - across said bulkhead and then direct to the carbs.

NEVER a heat evaporation problem, even at Le Mans in 2010, in traffic jams and around the circuit....couldn't be worse conditions !

Not looking to score points here, merely to best advise...and in the process keep the engine bay safe and neat.

 

[datsfun]

the dyno bloke has been tuning rally cars with Webber's for years so went with what he suggested ,

This

 

[Fastededdie]

When I was running triple 45 Dellortos on my L31, the regulator was set at 2.5psi before the carbs with no return. The fuel pipe came up the bulkhead on the RHside - across said bulkhead and then direct to the carbs.

NEVER a heat evaporation problem, even at Le Mans in 2010, in traffic jams and around the circuit....couldn't be worse conditions !

Not looking to score points here, merely to best advise...and in the process keep the engine bay safe and neat.

I know its Xmas day but..... Funny Ive just ordered the same regulator and will be doing the same. My carbs are little rich at the moment so I won't be tuning anymore until I put on the regulator and I guess that will calm them down a little ie the few pops I get even on idle. Then do the usual tuning with Air Flow meter.

 

[Mr Ex Jnr]

No return on the 240z super samuri it just on a fuel reg at number 3 I use runs fine no issue