Hilux Carbs vs Weber or EFI

[LoneRanger]

Hi Guys, just need a question answered re standard Toyota carb or replacing it with a Weber,
Which one will give me better consuption or should I rather look at going to EFI

Thanks guys

[CasKru]

Hi Guys, just need a question answered re standard Toyota carb or replacing it with a Weber,
Which one will give me better consuption or should I rather look at going to EFI

Thanks guys

If you can, EFI is king

[Mr_B]

Barry, EFi is the way to go... but it's also by way far the most expensive option... I'm not a fan of the weber option, had a 38 weber on my van previously... landed up put the original carb back on... then went the efi route... so for me it's either EFi or the original Aisan/Nikki carb!

I live in Brackenfell... see u r in Kraaifontein... if u want to experience the difference between carb and efi... you are welcome to take my lux for a spin! Just PM me!

mr b

[LoneRanger]

Thank Brenton - as soon as I get my engine finished I will give you a buzz - redoing the complete engine from top to bottom - bought it with a anoying sound in the motor.

[Mr_B]

Cool Barry... if u interested I can give u some tips on rebuilding a 4Y... did mine about a year ago...

mr b

[LoneRanger]

Cool - Anything that is a defnit don't do will be appreciatted - My old man is a motor mac and he basicly just tells me what to do - i'm a computer techy - go figure

[Mr_B]

Hey I'm a PC techie and programmer too...

If you replace the hydraulic lifters get the high RPM ones for the Chev V8, they fit the 4Y, cost a fraction of the Toy originals and are very good quality

If you replace the pistons... get decent quality replacements like KS... don't waste your time with cheapies...

If you replace the rings... get the originals from Toy... or if too expensive Alert Engine Spares sells original Toy rings as well for alot cheaper... make sure that the top ring is mild steel... not chromed... 2nd ring can be chromed... chromed top ring on a 4Y doesn't work well... blow-by

If you need to rebore the block... rather have the block bored and sleeved back to original spec... the 4Y uses a short skirt piston... a bored out block tends to get piston slap earlier in it's life than the sleeved block with original pistons...

If you want to put a warmer cam in don't get a standard brospeed cam... rather go to Malcolm of MasterCams and get a re-degreed brospeed type cam... which maintains low end torque, while giving the extra grunt at higher RPM, unlike the std brospeed which gives extra grunt at the expense of low end torque...

Do a search for start-up/running-in procedures... theres alot of helpful tips on how best to start-up the engine the first time, and how to run it in properly!

mr b

[Hannes.S]

Hi Barry

Nice lux!
Is yours the 4y or 22r?
And how is the performance with the carb and 33' tyres?

Hannes

[Jaco Versfeld]

Hi Bretton,

What are KS pistons? Price?

I asked an engineering place for a quote on sleeving my old engine, they said I should just bore it bigger, they didn't even want to listen to my reasons for sleeving

Can I buy a camshaft from Commercial and then reprofile it, or should I rather try and get a Toyota one?

How do I know if my old engine had the camshaft reprofiled? (It was fitted with a brospeed exhaust, raising the odds of having the cam done...) Engine braking was not too hot on this engine, and it idled quite high (going down Van Zyl's pass I stalled the engine a couple of times by braking too much)

What are my risks reconditioning the old engine - done around 360k km. Can the block break? I would like to rebore, sleeve, replace pistons, big end bearings, etc.

Hey I'm a PC techie and programmer too...

If you replace the hydraulic lifters get the high RPM ones for the Chev V8, they fit the 4Y, cost a fraction of the Toy originals and are very good quality

If you replace the pistons... get decent quality replacements like KS... don't waste your time with cheapies...

If you replace the rings... get the originals from Toy... or if too expensive Alert Engine Spares sells original Toy rings as well for alot cheaper... make sure that the top ring is mild steel... not chromed... 2nd ring can be chromed... chromed top ring on a 4Y doesn't work well... blow-by

If you need to rebore the block... rather have the block bored and sleeved back to original spec... the 4Y uses a short skirt piston... a bored out block tends to get piston slap earlier in it's life than the sleeved block with original pistons...

If you want to put a warmer cam in don't get a standard brospeed cam... rather go to Malcolm of MasterCams and get a re-degreed brospeed type cam... which maintains low end torque, while giving the extra grunt at higher RPM, unlike the std brospeed which gives extra grunt at the expense of low end torque...

Do a search for start-up/running-in procedures... theres alot of helpful tips on how best to start-up the engine the first time, and how to run it in properly!

mr b

[LoneRanger]

Hey Hannes

Mine is the 4y (3y crank though - which I understand are identical)
Can't actually say what the performance is like only went once with the previous owner to a 4x4 challenge - but did not drive it. I will let you know as soon as it is on the road.

[Mr_B]

KS = Kolbenschmidt of Germany... http://www.kspg-ag.de/index.php?fid=1093&lang=3

They are top quality aftermarket pistons at a reasonable price!

Barry... contact Allan Venter... 072 129 1160... he is a Toyota 4x4 guru... ask him who does the his engineering... they sleeve engines for Allan

MasterCams supplied me the complete cut cam + nitrided... for about 1K.. let Malcolm take a look at your cam... they are in Stikland Indst...

There are guys that have had good experiences with the Chinese/Korean 4Y knock-offs... F_D and DadzToy on the forum... and many with bad experiences... some guys prefer rebuilding there old 4Y's... I prefer rebuilding the original Toy engine... but it depends on the condition of the block... like the water channels, whether it's still within serviceable spec limits... etc.

mr b

[Wild Style]

Hi Bretton
I fitted a 1800 VW Golf carb on my 4Y but never manged to get it going properly. I replaced a few jets and refitted the original carb. She is running nicely but I would like to have the carb and settings checked by someone who is knowlegable and have the proper equipment. Can you recommend someone here in the Cape.
Thanks,
H

[LoneRanger]

Hey Mr B, I got told today that the GWM has a 4y motor 'with EFI' so I should just be able to do a straight swap of my brospeed and carb to the gwm's intake and EFI????

Does anyone else know about this or have you guys done it yet

[Mud Dog]

The GWM has a fong kong 4y, but you should be able to use the intake / plenum and fuel rails. I would first check and see what kind of injectors they are using .... would'nt trust the chinese ones too much, but they may be using Bosch or something more reliable that's sourced here, since the vehicles are locally built.

[Jaco Versfeld]

How reliable are the Delphi injectors?

The GWM has a fong kong 4y, but you should be able to use the intake / plenum and fuel rails. I would first check and see what kind of injectors they are using .... would'nt trust the chinese ones too much, but they may be using Bosch or something more reliable that's sourced here, since the vehicles are locally built.

[Mud Dog]

Jaco, as far as I know they're OK, but let's see what the guys that are more clued up on EFI have to say.