About to buy my first Fox

[earico]

At the end of this month I plan to pick up a friends 92 LX notch. I have always loved them but never owned one. I've owned a Terminator and SN95 Cobra though so I'm not new to mustangs.

I knew about the forged pistons in the OEM engine because back in the 90s my friends used to spray the piss out of em. LOL. Lately I've been reading up a little bit on the platform. Seems the general consensus is the block is the weak spot. Then I suppose the cast crank is next. I am buying a very low miles near stock car. I don't want to make it stupid fast but I would like it to be respectable and quick. I'd like to have it do 120-125 mph trap speeds in the 1/4 mile. Can I get there reliably with the stock block with a turbo or small centri? What RWHP would that take? 400ish?

 

[earico]

This was a good read.

http://www.fiveohinfo.com/performance/basicfox50builds.html

 

[CNTLOSE]

If it is a late '92 build it is possible it has the hypereutectic pistons...just FYI. Of course if you're tearing into it that won't matter. Congrats!

 

[trollnstroll]

450whp will get your trap speed you want, and will be the limits of the stock block. Do it how you want; blower, n20, turbo...My opinion, the turbo will be the least amount of stress on the block.

 

[Dig Race]

Rpm will kill the block before hp will so the turbo might last longer but they are still a toss up

 

[earico]

Thanks for all the info fellas. It's greatly appreciated. I've been Googling all kinds of stuff. LOL

 

[crazycarlo]

the general concensus is 500rwhp is pretty stretched. Some live with it that long and some break at 450. make sure it has a good tune. Most people either switch to an aftermarket block OR go 5.8 which isnt that hard or $$ really. They say those motors are good to 700 with good hardware. I have a 90 notch as my toy.

 

[earico]

the general concensus is 500rwhp is pretty stretched. Some live with it that long and some break at 450. make sure it has a good tune. Most people either switch to an aftermarket block OR go 5.8 which isnt that hard or $$ really. They say those motors are good to 700 with good hardware. I have a 90 notch as my toy.

Yeah I agree on the block. Even though 450-500 rwhp is all i would ever want I would rather it be built with some margin of error. So a block will be in order.

I've pretty much decided to do all the suspension stuff first. Wheels, 31 spline, welded tubes, 5 lug, disc brakes and etc, etc. Power will be the last thing I add and it will more than likely be a mild cam turbo build with a T56 so it is more of a comfortable cruiser.

 

[Dig Race]

400hp in a fox can get you in the 10s... That being said 450-500 can make a fun easy 10 sec street car. It's all suspension, they just flex so damn much factory

 

[mustangmanjeff]

get yourself an A4 block, truck block OR R block or mexican block/ 351 block, all those factory blocks are stronger then the stock 5.0 block, stock 302 mustang block is good to 450-500rwhp. the 351 and mexican/ truck blocks seem good to 500-600+rwhp. A4 and R block / old school ford motorsport blocks are good to 700-800+rwhp. or go all out aftermarket Dart block, ford racing / boss block are good for 1000++++rwhp.

I run a truck block in my with aftermarket pistons, stock rods and stock crank with arp hardware.

 

[blubyu87gt]

Yeah dont go over 600 on the stock block unless you like building and swapping motors at undertermined intervals lol.

Here is the motor I am currently replacing:

Originally thought I just blew the head gasket at the #7 and #8 cylinders. Also saw this on #5. Good times. Crack gets bigger as it goes deeper and wider down the skirt couldn't get a good pic of it though.

 

[earico]

^ Thanks for the info fellas!


Picked it up: http://www.svtperformance.com/forums/showthread.php?1117550-Finally-got-another-Mustang

 

[specializedbndt]

I remember when my car looked like that.


Sent from my iPhone using Tapatalk

 

[StrayBullitt]

Cool car, how is the build coming along ?

 

[earico]

Well nothing has happened since I bought it. I've just been enjoying it as is. Snapped an axle on the GTR and had to repair that. I'll start messing with the Fox this summer.

 

[5.0 Hatch]

I've had a number of foxes and went through a number of different combinations. My favorite was knock off Chinese heads/intake and custom cam 347. Trapped 115+ all day long in a full weight LX hatch with a/c and all.

 

[StalkerStang]

I would go 351 for sure.

Find a 94+ roller block, decent heads, etc. Wouldn't even need the turbo to make 450-500 wheel with the right parts....