Honest opinion on straight gas setup - Aussie V8 | Holden - Ford

85commolux · 04-09-2008, 01:20 PM

Hi all, I am looking at going straight gas on my stock blue 253 powered Hilux and am after some honest opinion on which setup to go. I was looking at an Impco 425 mixer as it will bolt directly to the quaddy throttle plate but I was wondering if the 425 would be overkill on this engine as I don't really get up to 5000 rpm and it is a stocker. But I am also in the process of looking at rebuilding as well. Any thoughts would be very much appreciated. Thanks

400HPONLPG · 04-09-2008, 02:32 PM

Considering the 425 Impco is a on-demand system , there wont be an issue with "over supply" especially considering your using Spreadbore throttle plate from a Quaddy.With those tiny little primaries ,signal strength wont be an issue . Probably by far the best setup for your 2FLUFFY3 .

85commolux · 04-09-2008, 05:52 PM

Thats what I was hoping to here, as from what I have read it seems to be the simplest and best setup to go with. All I was worried about was the effect at low rpm whilst in the scrub, but as you say they are on demand so would be fine. Thanks for the help. On a side note, when I rang IMPCO in Sydney yesterday the gas fitter there told me that the 253's didn't come with quaddies on them and that someone must have changed the manifold ????????? He then suggested I use a 225 mixer.

rusty · 04-09-2008, 07:14 PM

Quote:

Originally Posted by 85commolux

Thats what I was hoping to here, as from what I have read it seems to be the simplest and best setup to go with. All I was worried about was the effect at low rpm whilst in the scrub, but as you say they are on demand so would be fine. Thanks for the help. On a side note, when I rang IMPCO in Sydney yesterday the gas fitter there told me that the 253's didn't come with quaddies on them and that someone must have changed the manifold ????????? He then suggested I use a 225 mixer.

I think he's telling you porky pies when it comes to the 2fluffy3/quaddie combo 85commolux.
My old man had a VH wagon with a blue 2fluffy3 and it definitely had a quaddie on it.
The VC's had them too but I'm unsure about the VB's.
Hope this helps.

Cheers,
Rusty.

400HPONLPG · 04-09-2008, 07:24 PM

He , the Impco man is a moron , the 225 is for Dual fuel , and he wouldnt have a clue what holden had what carb came with what. Do you have the 4 barrel manjfold to fit it to ? . If so , just Grind down the center divider and grind out the throttle plate Ports till it looks like a Brock manifold .

Apart from the commodores that had the smaller quaddy standard , didnt the HQ SS 4 door thingy only come in 2Fluffy3 only , with a quaddy ?

RUF-IDL · 04-09-2008, 07:52 PM

2fluffy3 u guys crack me up!! never heard that 1

wabbit · 04-09-2008, 08:26 PM

stick around and you'll hear it more than you want

400 has a vendetta against the poor,lowly 253
he was obviously molested by one as a child.......actually, that would be, teenager

400HPONLPG · 04-09-2008, 08:37 PM

Ah Shucks Wabbit , I was being nice to the poor 2Fluffy3 owner , but I can feel that wearing off allready !!!

wabbit · 04-09-2008, 08:57 PM

Don't try and hide behind that facade.

we know you're a big softy.....2FLUFFY3 is still a V8, even if it doesn't measure up to a 2JZ...........Audible kudos is still kudos

04-09-2008, 01:20 PM	#1 (permalink)
85commolux casual poster Trade Rating: (0) Join Date: Sep 2006 Location: Tumut Ride: 85 Hilux v8 Posts: 33	Honest opinion on straight gas setup Hi all, I am looking at going straight gas on my stock blue 253 powered Hilux and am after some honest opinion on which setup to go. I was looking at an Impco 425 mixer as it will bolt directly to the quaddy throttle plate but I was wondering if the 425 would be overkill on this engine as I don't really get up to 5000 rpm and it is a stocker. But I am also in the process of looking at rebuilding as well. Any thoughts would be very much appreciated. Thanks

04-09-2008, 07:24 PM	#5 (permalink)
400HPONLPG Do you ever leave? Trade Rating: (0) Join Date: Nov 2005 Location: Perth Ride: HZ one tonner Gas only, WB Stato Gas only ,XR650R Posts: 2,253	He , the Impco man is a moron , the 225 is for Dual fuel , and he wouldnt have a clue what holden had what carb came with what. Do you have the 4 barrel manjfold to fit it to ? . If so , just Grind down the center divider and grind out the throttle plate Ports till it looks like a Brock manifold . Apart from the commodores that had the smaller quaddy standard , didnt the HQ SS 4 door thingy only come in 2Fluffy3 only , with a quaddy ? Last edited by 400HPONLPG; 04-09-2008 at 07:26 PM.

04-09-2008, 08:26 PM	#7 (permalink)
wabbit smell something burning? Trade Rating: (0) Join Date: Oct 2004 Location: Rockhampton Ride: VK Commy slugmobile, Kia Rio, LH Torry Posts: 6,091	stick around and you'll hear it more than you want 400 has a vendetta against the poor,lowly 253 he was obviously molested by one as a child.......actually, that would be, teenager __________________ Nothing to see, here Move along, please .

04-09-2008, 08:57 PM	#9 (permalink)
wabbit smell something burning? Trade Rating: (0) Join Date: Oct 2004 Location: Rockhampton Ride: VK Commy slugmobile, Kia Rio, LH Torry Posts: 6,091	Don't try and hide behind that facade. we know you're a big softy.....2FLUFFY3 is still a V8, even if it doesn't measure up to a 2JZ...........Audible kudos is still kudos __________________ Nothing to see, here Move along, please .

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04-09-2008, 02:32 PM	#2 (permalink)
400HPONLPG Do you ever leave? Trade Rating: (0) Join Date: Nov 2005 Location: Perth Ride: HZ one tonner Gas only, WB Stato Gas only ,XR650R Posts: 2,253	Considering the 425 Impco is a on-demand system , there wont be an issue with "over supply" especially considering your using Spreadbore throttle plate from a Quaddy.With those tiny little primaries ,signal strength wont be an issue . Probably by far the best setup for your 2FLUFFY3 .

04-09-2008, 05:52 PM	#3 (permalink)
85commolux casual poster Trade Rating: (0) Join Date: Sep 2006 Location: Tumut Ride: 85 Hilux v8 Posts: 33	Thats what I was hoping to here, as from what I have read it seems to be the simplest and best setup to go with. All I was worried about was the effect at low rpm whilst in the scrub, but as you say they are on demand so would be fine. Thanks for the help. On a side note, when I rang IMPCO in Sydney yesterday the gas fitter there told me that the 253's didn't come with quaddies on them and that someone must have changed the manifold ????????? He then suggested I use a 225 mixer.

04-09-2008, 07:52 PM	#6 (permalink)
RUF-IDL casual poster Trade Rating: (0) Join Date: Dec 2006 Location: S.A the NO DRAGS STATE Ride: 355 ss hatch,355 vn ss,mk1 gt cortina Posts: 179	2fluffy3 u guys crack me up!! never heard that 1

04-09-2008, 08:37 PM	#8 (permalink)
400HPONLPG Do you ever leave? Trade Rating: (0) Join Date: Nov 2005 Location: Perth Ride: HZ one tonner Gas only, WB Stato Gas only ,XR650R Posts: 2,253	Ah Shucks Wabbit , I was being nice to the poor 2Fluffy3 owner , but I can feel that wearing off allready !!!

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