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250 Carby Turbo

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Got myself a new project and wondering where I should go with it. I got a XF Fairmont Ghia 87 250xflow Carby turbo setup and wondering what intakes and carby i should go, currently it's just stock intake n carby. Stock block but bigger valves, double valve springs, 1:7 roller rockers, crow cams.

 

Also wondering will the stock block be alright as well, i hear they manage fine. The guy i brought the car off gave me some 'Ross racing pistons 6th-8th' (not sure what 6th-8th is), crow lifters (extended length), a headgasket spacer for the lifters and a whole block that as been worked apparently but something went wrong with it so that's why it has been gone abck to stock block.

 

Just wondering what my best options are that isn't major costly as I'm just a 2nd year light vehicle apprentice with not much experience in the turbo/performance field. 

 

Thanks in advance. 

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Hi mate, a couple of things already don't make much sense. 6-8th pistons doesn't tell us anything. Maybe he's talking about deck clearance?

A "worked" block doesn't say much either. What exactly was done to it? If it was machined to zero deck the pistons, line-honed, bored out, cleaned up, etc then that's a bit of work done to it but it won't necessarily make any more power.

We'll need more of a description of the turbo kit. Some of those 1980s setups were a suck-through with SUs or Stromberg CDs. Non-intercooled of course. Requires either the original manifold or EFI type to work. Battery relocated too (the carbies go in its place). More modern carby setups are blow-through, allowing an intercooler to be fitted. You can use whatever aftermarket manifold you like, Aussiespeed, Redline, modified stocker....

Some pics would help a lot.

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If I were you I'd go efi, being a Ghia it should have been efi standard ?
For a small budget I'd go with a factory xflow efi intake with some cleaned 440cc bosch green s/h injectors which can be bought cheap an e series distributor type ecu (along with a J3 chip) and wiring harness. A TFI dizzy if you don't already have one. Replace the stock in tank fuel pump with a Walbro 255lph unit, an aftermarket efi 1:1 fuel reg.
A front mounted air to air intercooler.
By the time you stuff around with buying the carby and associated manifolds, then tuning it you'll probably end up with a rough running,temperamental pile of shit.
The factory e series ecu with a J3 chip allows total control over fuel and ignition for all weather conditions. I believe you can run up to 10psi before you run out of tuning resolution.


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If I were you I'd go efi, being a Ghia it should have been efi standard ?
For a small budget I'd go with a factory xflow efi intake with some cleaned 440cc bosch green s/h injectors which can be bought cheap an e series distributor type ecu (along with a J3 chip) and wiring harness. A TFI dizzy if you don't already have one. Replace the stock in tank fuel pump with a Walbro 255lph unit, an aftermarket efi 1:1 fuel reg.
A front mounted air to air intercooler.
By the time you stuff around with buying the carby and associated manifolds, then tuning it you'll probably end up with a rough running,temperamental pile of shit.
The factory e series ecu with a J3 chip allows total control over fuel and ignition for all weather conditions. I believe you can run up to 10psi before you run out of tuning resolution.


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Wouldn't the boost limit be dependent on what MAP sensor you're running? Or is it in the ECU?

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Wouldn't the boost limit be dependent on what MAP sensor you're running? Or is it in the ECU?

Sent from my CPH1607 using Tapatalk

It's to do with the output of the e series map sensors, they aren't 0-5V GM style where you can just scale the map to suit the sensor i.e changing to a 2bar map sensor, they put out a frequency. You can get around the 10psi with a boost cut defender and rising rate fpr if you want more boost than that, not ideal though.

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My rule of.. if it works, don't touch it comes to mind.. learn more about it before changing it for possibly worse outcomes?

 

sounds interesting, i almost bought a 1985 XF ghia carby car because i didn't like EFI, these days i'd probably go LPG or efi .. carbys can be a pain in the ass. seems not that many people will work on it also

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