Supercharging 22R in hilux...advice needed.

[ViPeR_NiPPleX]

have you measured the intake manifold temp with a thermometer? i'm curious to know how significant a difference there is in relation to ambient air temp.

[MWP]

Plus when on boost the carby and intake side chill right down giving an even denser air/fuel mixture equalling more power again.
Colder air in=colder air out..
Mine starts to freeze the intake manifold on the SC14.

This would be a worry at WOT.
If there is enough vacuum to create that much of a temperature drop around the carb, i would think the carb isnt big enough.

Any photos of your setup?
Sounds interesting.

[dale30]

Have not tested temp but ice is bloody cold.

350 holly is not a small carby.

Heres a link to photos. Just pulled the motor back out soI will take more tonite.

http://toymods.net/forums/showthread...862#post271862

[MWP]

Have not tested temp but ice is bloody cold.
350 holly is not a small carby.

Ok, well that means itll be from a lot of part-throttle use.
I would be worried about the butterfly freezing up.
This is exactly why carb inlet manifolds are heated.

Heres a link to photos. Just pulled the motor back out soI will take more tonite.
http://toymods.net/forums/showthread...862#post271862

Thanks for that.
Im considering getting a SC14 for my 21R for some cheap thrills.
It would be setup almost exactly like yours, but using a Weber 34ADM carb.

BTW... isnt the Holley 350 too big to meter low-revs/high-load fuel properly?
Or does the SC14 make that job easier?

[dale30]

Ok, well that means itll be from a lot of part-throttle use.
I would be worried about the butterfly freezing up.
This is exactly why carb inlet manifolds are heated.



Thanks for that.
Im considering getting a SC14 for my 21R for some cheap thrills.
It would be setup almost exactly like yours, but using a Weber 34ADM carb.

BTW... isnt the Holley 350 too big to meter low-revs/high-load fuel properly?
Or does the SC14 make that job easier?

This is a speedway car so its getting heaps all the time

Butterfly wont freeze..It only freezes below carby at wot.
Its not that great down low,For what you want a falcon xf webber will be perfect.I was running one on the 18R and the standard jetting was perfect. Fuel consumpsion was great to.8 ltrs per 8 laps with the toyota carby jetted...2 ltrs per 8 laps with stock webber.

heres some more pics i just took.

[MWP]

Its not that great down low,For what you want a falcon xf webber will be perfect.I was running one on the 18R and the standard jetting was perfect. Fuel consumpsion was great to.8 ltrs per 8 laps with the toyota carby jetted...2 ltrs per 8 laps with stock webber.

Ive been running the 34ADM for a few years now, before on my old 18R and now on the 21R.
The standard jetting wasnt right, so i tweaked it a bit, and then again when it went on the 21R.
I get decent fuel usage around the city, 9.14L/100KM (on ULP92) and thats with the occasional thrash through the hills.
Leans out a bit top of the primary though which i need to fix.

You are right, i also think itll be the perfect carb for draw-through with a SC14.

Thanks for the new photos.