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Hey I heard on Bryan Littles site that if you put a 260 intake Manifold on a 240Z it will give you 10 more HP is that true?? Hey bryan where did you hear that?? Can anyone confirem that if you put the Intake manifold from a 260 it will add 10 HP???

Dustin
 

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What?

The 260Z manifolds are only good for the Hitachies carbs made for emitions. Get you a good early model 240Z manifold and SU carbs and you'll be more than satisfied. The 260Z manifold and carbs are only good for boat anchors for what I'm told.
 

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Re: What?

> The 260Z manifolds are only good for the
> Hitachies carbs made for emitions. Get you a
> good early model 240Z manifold and SU carbs
> and you'll be more than satisfied. The 260Z
> manifold and carbs are only good for boat
> anchors for what I'm told.
I believe you are wrong, but call the folks at ZTherapy to get the right info., they are the real experts.

The reason I say you are wrong is that I have round top SU's on my 260Z, on what I think is a 260 manifold. I asked the folks at ZTherapy about whether I would get better performance if I switched the earlier SU manifold. They said the 260 manifold flowed better. If that's true, as long as it bolts up, you are o.k. The early 240's used the E31 head; the '73 240 and 260's used the E88. My 260 manifold is bolted to my E88, so I know that it works. Whether it will bolt up to an E31, I don't know, but I bet the guys at ZTherapy will!
 

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Re: What?

> I believe you are wrong, but call the folks
> at ZTherapy to get the right info., they are
> the real experts.

> The reason I say you are wrong is that I
> have round top SU's on my 260Z, on what I
> think is a 260 manifold. I asked the folks
> at ZTherapy about whether I would get better
> performance if I switched the earlier SU
> manifold. They said the 260 manifold flowed
> better. If that's true, as long as it bolts
> up, you are o.k. The early 240's used the
> E31 head; the '73 240 and 260's used the
> E88. My 260 manifold is bolted to my E88, so
> I know that it works. Whether it will bolt
> up to an E31, I don't know, but I bet the
> guys at ZTherapy will!
The carbs will bolt up to the 260z manifold, and the 260z manifold would bolt up to the E31 head.
I'm not aware of the hp gain, if any, but the older manifolds sure look more sanitary with less emmission junk on them. The racers usually request
older balance tubes, and also buy air cleaners to
modify them for less restriction. Joe
 

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I think he ment "10lbs" not "10HP&q

> The carbs will bolt up to the 260z manifold,
> and the 260z manifold would bolt up to the
> E31 head.
> I'm not aware of the hp gain, if any, but
> the older manifolds sure look more sanitary
> with less emmission junk on them. The racers
> usually request
> older balance tubes, and also buy air
> cleaners to
> modify them for less restriction. Joe
 
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