Supercharging 22R in hilux...advice needed.

[charged22r]

well it looks like its gonna cost me all up around $4000 to get mine set up properly so if your looking for something for 1k look for something else

fun but expensive

[dale30]

well it looks like its gonna cost me all up around $4000 to get mine set up properly so if your looking for something for 1k look for something else

fun but expensive

Mounting is easy and if your just after more pulling power i think you can do low boost well inside your budget, As long as you can do some welding and can get exhaust shop to bend up some pipes.
Cost me $55 to get pullys adapted .$50 for piping and about 4 hours of cutting,grinding and welding to make the adaptor plates.

[sideshow]

if u dont have much cash leave it std
sell it and buy motorbike

muching round with carbies when goin from n/a to f/i is not straight forward

you have to pressurise the fuel bowl otherwise you close the float needle when u hit boost

it all sounds easy on paper but costly in the end due to all the small things adding up to one big expensive piece of shit that goes fukt

[MWP]

well it looks like its gonna cost me all up around $4000 to get mine set up properly so if your looking for something for 1k look for something else
fun but expensive

How the hell did it cost you $4k????
Did you get the most expensive mechanic you could find to do all the work?

[MWP]

muching round with carbies when goin from n/a to f/i is not straight forward
you have to pressurise the fuel bowl otherwise you close the float needle when u hit boost

Not if you use draw-through... which also has other advantages too.

[Screamn_Sleeka]

I have been told you can not use a draw though system with a SC12 or SC14, can anyone confirm this? I think its important with the design whether you can use this system or not.

[Mr_Toyota]

something to do with the teflon seals i think!

Ive seen a few draw thru systems with the SC12 and 14,

I think by runing fuel through the charger it decreases the life of the charger.
I read a whole big section on draw thru and blow thru super charging, ill have to find it and post it..


I know of a KE55 corolla running a supercharged 4k by a draw thru system running a SC12 and some MG SU carby..

[frickendevil]

If your going cheap, go draw through, less mucking about with little bits, but less overall power.

Draw through:
Adv.
-Simpler design
-Cheaper
-No re-jetting
-No fuel wastage(read push)
Disadv.
-Less power (compressing denser air)
-Definitely need an intercooler
-On high boost, turbo won't last as long, as its spinning at higher RPM and pushing denser air (not a problem on lower boost)

Push through:
Adv.
-More power
-Can get away without intercooler.
Disadv.
-Rejetting required
-Fuel wasted when boost is building up (you have to re-jet to required fuel at full boost, as the carby doesnt recognise any more pull to drag more fuel through, and fuel doesnt adjust at low boost)
-More bits and bobs
-Money.

This was just a list that i found somewhere when i was looking at turbo-ing my 18-rc (cheap turbo from a mates trashed skyline). I never went ahead with it, as i really couldnt be assed.

[MWP]

Disadv.
-Less power (compressing denser air)
-Definitely need an intercooler

Ok, so how do those work??

Compressing denser air... why is it denser, because it contains a tiny bit of fuel?
Why need an intercooler, no different than any other forced induction method?
I think both of those are wrong.

I think these are the adv/dis-adv to draw-through:

Advantages:
- Easier & cheaper to setup.
- Fuel lubes/seals SC rotors producing more boost and reduces wear (thas if it doesnt effect the teflon seals like sugested above).

Disadvantages:
- Cant be intercooled due to fuel pooling in long intake path.
- Possibility of big bang if engine backfires through inlet valves (another reason not to intercool too).

[ViPeR_NiPPleX]

wow that has to be the most inaccurate list of anything i've ever seen.

[Screamn_Sleeka]

Before you take any of the above advice seriously, think about the consequences of having pack pressure from hard back off with a blow throw system AND an intercooler. You will make a small potential explosive in the intercooler ready to ignite. I doubt it’s legal as well.

[Norbie]

Yes, it's well-known that intercooling cannot be used with draw-through setups, which is one of the major disadvantages of such a design. Neg rep for providing inaccurate and potentially dangerous information.

[Mr_Toyota]

agree with norbie...
and if you happen to get a hole in the intercooler on a draw thru system, it acts asif your on WOT...which is very very bad..

and anyway, ive read else where the fuel running thru the charger helps to cool it down a bit..

From what ive read id say a turbo is better set up as a blow thru with a carby sealed in a air tight box so its even pressure inside and out of the carby.

and a draw thru system is better for a charger, but lack of cooler may make the temp a little higher...

just my opinion anyway!

EDIT:

Push through:
Adv.

-Can get away without intercooler.
Disadv.
-Rejetting required
-Fuel wasted when boost is building up (you have to re-jet to required fuel at full boost, as the carby doesnt recognise any more pull to drag more fuel through, and fuel doesnt adjust at low boost)

Intercooler is easy to install on a blow thru system,

also, cant you buy a rising rate fuel regulater thingy, as the PSI ups from the turbo the PSI rate of the fuel increases?....im sure ive heard of one...something to do with the fuel pressure should be atleast 4PSI higher then the boost pressure.

[Mr_Toyota]

http://www.rollaclub.com/board/index.php?showtopic=2341


a whole 16 pages on turbo'ing a toyota 4K,
same thing would apply to a 18r, or a 22r or whatever motor i guess...

good read, and a few pics

[dale30]

Ok, so how do those work??

Compressing denser air... why is it denser, because it contains a tiny bit of fuel?
Why need an intercooler, no different than any other forced induction method?
I think both of those are wrong.

I think these are the adv/dis-adv to draw-through:

Advantages:
- Easier & cheaper to setup.
- Fuel lubes/seals SC rotors producing more boost and reduces wear (thas if it doesnt effect the teflon seals like sugested above).

Disadvantages:
- Cant be intercooled due to fuel pooling in long intake path.
- Possibility of big bang if engine backfires through inlet valves (another reason not to intercool too).

Well said MWP these are the true facts.

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.