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will my car be harder to modify if its dual fuel? 

 

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 Post subject: will my car be harder to modify if its dual fuel?
Posted: Fri Jul 08, 2011 11:51 pm 
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hey guys im only new to the forum and its been so helpful to me

so anyway my question is i would like to do some mods to my au xr6 series 3 which is dual fuel and i was just wondering if due to it being dual fuel will it be harder to modify
cam,exhaust,cold air intake,tune etc

if you guys could help me out it would be awesome cheers
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 Post subject: Re: will my car be harder to modify if its dual fuel?
Posted: Sat Jul 09, 2011 12:02 am 
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Your biggest restriction is the gas if its a general 'mixer ring' setup.

 

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 Post subject: Re: will my car be harder to modify if its dual fuel?
Posted: Sat Jul 09, 2011 12:05 am 
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so how does that work with the gas will i need to drive it around on petrol? may sound stupid but i have no idea
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 Post subject: Re: will my car be harder to modify if its dual fuel?
Posted: Sat Jul 09, 2011 12:14 am 
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It means no matter what you do, your still sucking in air through the eye of a needle.

Put your thumb and pointer finger together, that's how much air is getting into your engine at this stage.

 

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 Post subject: Re: will my car be harder to modify if its dual fuel?
Posted: Sat Jul 09, 2011 12:17 am 
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so what do u think the best solution is?
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 Post subject: Re: will my car be harder to modify if its dual fuel?
Posted: Sat Jul 09, 2011 12:38 am 
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Krytox wrote:
It means no matter what you do, your still sucking in air through the eye of a needle.

Put your thumb and pointer finger together, that's how much air is getting into your engine at this stage.


would pod filter fix that ?

 

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 Post subject: Re: will my car be harder to modify if its dual fuel?
Posted: Sat Jul 09, 2011 12:42 am 
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LPG Injection fixes the air restriction issue.

I have a 1673 Wade camshaft in my car and I run it on Petrol and LPG. I have an Impco style LPG system which uses a carby type mixer, and this creates a restriction in the air intake when using petrol.

This basically means that the upper rev range, from 3500rpm up doesn't get as much air as it could due to the LPG gear restricting the amount of air it can flow.

So, your answer is, yes it is harder to modify, but if you use LPG injection, the restrictions are removed.

Cheers
BenJ

 

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 Post subject: Re: will my car be harder to modify if its dual fuel?
Posted: Sat Jul 09, 2011 10:51 am 
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But with dual fuel there will always be a trade off.

Running on LPG won't like cams with much overlap as it drops your dynamic compression down (which is already lower than ideal to allow you to run petrol).

 

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 Post subject: Re: will my car be harder to modify if its dual fuel?
Posted: Sun Jul 17, 2011 12:19 pm 
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also wondering if anyone knows much about the gears that are possible to run throught my car up for suggestions price etc
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