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Cheap HP from a 3F?

Tech Talk for Cruiser owners.

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Cheap HP from a 3F?

Post by turbo4t »

Anyone got any ideas?
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Post by Sixty »

Electronic ignition, extractors, 2 1/2 inch exhaust and a good tune.
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especially a Chev 6.2!
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Post by grungle99 »

What Electronic Ignition you running Sixty?
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Post by shagz »

I have a '74 F with a 3F dizzy and cressida (84' i am pretty as put it in about 4 yars ago) magnetic internals, ingitor and coil.. not really anymore power but very nice (smooth) as haven't touched it since. The extractors and 2.5 exhaust were the best thing.

Cheers

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Post by Mick_n_Sal »

Extractors & new system are definitely the best bang-for-the-buck mod on these engines. You'll also find that it wil rev _much_ more freely once its done.

I'm still looking at throttle body injection & electronic ignition for mine.
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Post by mlowe76 »

Mick_n_Sal wrote:Extractors & new system are definitely the best bang-for-the-buck mod on these engines. You'll also find that it wil rev _much_ more freely once its done.

I'm still looking at throttle body injection & electronic ignition for mine.


When you find it post up some info on here about it?

many others probably want to know :)

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Post by dumbdunce »

stick that turbo off the H motor on it - the 3F isn't a great motor to turbo but will probably handle 3 - 5psi ok.
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Post by turbo4t »

dumbdunce wrote:stick that turbo off the H motor on it - the 3F isn't a great motor to turbo but will probably handle 3 - 5psi ok.


Wanna make me a minifold? Also, does anyone know how much the electronic ignition is worth or where to get it?
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Post by dumbdunce »

turbo4t wrote:
dumbdunce wrote:stick that turbo off the H motor on it - the 3F isn't a great motor to turbo but will probably handle 3 - 5psi ok.


Wanna make me a minifold? Also, does anyone know how much the electronic ignition is worth or where to get it?


will have to have a look and see what the best option is - full custom manifold, modify the stock manifold or build an adaptor. from around $150 for a simple adaptor. you have to add plumbing for air, oil and possibly water.

cressidas are pretty common at pick'n'paymore, probably $100ish for complete electronic ignition - dizzy, igniter and coil.
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Post by turbo4t »

dumbdunce wrote:
turbo4t wrote:
dumbdunce wrote:stick that turbo off the H motor on it - the 3F isn't a great motor to turbo but will probably handle 3 - 5psi ok.


Wanna make me a minifold? Also, does anyone know how much the electronic ignition is worth or where to get it?


will have to have a look and see what the best option is - full custom manifold, modify the stock manifold or build an adaptor. from around $150 for a simple adaptor. you have to add plumbing for air, oil and possibly water.

cressidas are pretty common at pick'n'paymore, probably $100ish for complete electronic ignition - dizzy, igniter and coil.


I might steer clear of the turbo just for longevity and insurance reason. Apart from that, the bidding has gone wild lol. So the cressida dizzi will fit straight in?
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Post by dumbdunce »

turbo4t wrote:I might steer clear of the turbo just for longevity and insurance reason. Apart from that, the bidding has gone wild lol. So the cressida dizzi will fit straight in?


I doubt it's a straight bolt-in, I think you have to transfer the guts from the cressida into the cruiser dizzy. I've never done that exact swap but have done a few, there is always a bit of weeping and gnashing of teeth to make it fit.

a cheaper alernative would be to get a HEI kit from dick smith/jaycar - about $70, uses the points to trigger a transisotr ignition, but the points don't wear out because they're only switching a few mA instead of 5 - 10 amps.
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Post by Meldge »

dumbdunce wrote:a cheaper alernative would be to get a HEI kit from dick smith/jaycar - about $70, uses the points to trigger a transisotr ignition, but the points don't wear out because they're only switching a few mA instead of 5 - 10 amps.


Tell me more, tell me more... Someone mentioned 3-5 pounds, what would the carby handle though, that was mentioned when I asked?

Small blower would be easier to fit i recon, just a couple of brackets, and you get to leave your manifolds alone, for those with extractors its even better...

My theory anyway...
Meldge...

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Post by Mick_n_Sal »

On the subject of Injection, I was thinking of copying the idea in the nissan bible, and using the throttle body of an EA falcon. Designed for a 4Litre(ish) engine and relatively easy to graft in with an adapter plate. As I am not in the automotive game I'm still gathering info on what is needed. Obviously one would need the throttle body, computer, harness & sensors. Is this a realistic project - or just too much agro ??
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Post by shagz »

Mick_n_Sal wrote:On the subject of Injection, I was thinking of copying the idea in the nissan bible, and using the throttle body of an EA falcon. Designed for a 4Litre(ish) engine and relatively easy to graft in with an adapter plate. As I am not in the automotive game I'm still gathering info on what is needed. Obviously one would need the throttle body, computer, harness & sensors. Is this a realistic project - or just too much agro ??


Yep thats the way I would go.
Stuffing around with the timing would the biggest thing.
I did a heap of research on this and in the end found a 4.5 litre 80 series engine/gearbox at a cheaper price then the EFI conversion would be.
Altho, I wanted to turbo the old girl (had another 2F to go in) as well. I made the manifolds and all but I went the MPI route with an EF top half of the intake and made my own bottom half.. pix attached bolted to motor, i had it welded up after this pix but still needed die grinding.. Now all just sitting in the shed - 'o well :P
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Post by beanz2 »

Don't you guys down under get the 3FE fuel injected engine? How hard is it to swap the induction system to the 3F?

Dave
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Post by shagz »

beanz2 wrote:Don't you guys down under get the 3FE fuel injected engine? How hard is it to swap the induction system to the 3F?

Dave



actually i looked at this as well and there are a few floating around in OZ still operating in the early 80 series, but very rare as wreckers want an arm and a leg if they have them.. only ever located one that was for sale after months of searching and i think the dude wanted 1K for it.

I didn't go any further as the ports are a different shape to the 2F, prob is a good option if you can source it cheep enuff.
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