This is topic speed density mods? in forum Tech Talk at Northern California Ford Owners  .


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Posted by 510.86.notch (Member # 9892) on :
 
What mods are worth doing to a speed density motor?Just trying to get some ideas.Got some money to spend and want to spend it where it will show.Car is a 86 gt o/r x slp Lm 1s cold air.Thanks in advanced.
 
Posted by GOT 50 (Member # 1960) on :
 
Mass air conversion.

Gears if you stay speed density
 
Posted by 510.86.notch (Member # 9892) on :
 
Yea I'm staying speed density till this motor goes.yea gears sounds like the best bang for your buck.thanks.
 
Posted by Jaejae5.0 (Member # 7958) on :
 
anything other than a cam will be fine with speed density...gears..exhaust intake..have fun
 
Posted by 510.86.notch (Member # 9892) on :
 
quote:
Originally posted by Jaejae5.0:
anything other than a cam will be fine with speed density...gears..exhaust intake..have fun
gears and exhaust sound nice.would a upper and lower actually add performance?thanks for the input.
 
Posted by KCmustangboy (Member # 1927) on :
 
My 87 Speed Density coupe was really quick... I kept it STOCK from throttle body to pan and with cold air, 3.73s, long tubes and x pipe, it would ripe off 12.9s on slicks.
 
Posted by 510.86.notch (Member # 9892) on :
 
that sounds perfect.getting springs,struts and shocks then 373's rebuilt possi and clutch.looking for longtubes and x pipe as we speak.thanks for all the input.any suggestions on where to get the rear done?
 
Posted by KCmustangboy (Member # 1927) on :
 
http://www.rearendspecialties.com in the south bay do a good job. But check with the guys on hear, im sure someone does it as side work.

[ March 14, 2012, 02:12 AM: Message edited by: KCmustangboy ]
 
Posted by nitrous_bob (Member # 77) on :
 
the 3 best mods for the dollar are...in this order

1) nitrous
2) gears
3) tires (NOT nittos....but et streets)

1 and 2 require #3 for any real benefit

but for about a $1000 you can take a totally stock 5 speed fox to mid 12's all day long with all 3

after that dont even bother til you do heads
 
Posted by 510.86.notch (Member # 9892) on :
 
quote:
Originally posted by KCmustangboy:
http://www.rearendspecialties.com in the south bay do a good job. But check with the guys on hear, im sure someone does it as side work.
thanks again for the input.hopefully someone will chime in on the rear end.
 
Posted by 510.86.notch (Member # 9892) on :
 
quote:
Originally posted by nitrous_bob:
the 3 best mods for the dollar are...in this order

1) nitrous
2) gears
3) tires (NOT nittos....but et streets)

1 and 2 require #3 for any real benefit

but for about a $1000 you can take a totally stock 5 speed fox to mid 12's all day long with all 3

after that dont even bother til you do heads
OK.what would be a safe amount to run for awhile?Also what is a good kit to run?Thanks for your help.
 
Posted by nitrous_bob (Member # 77) on :
 
Under 125 is perfectly safe on bone stock 5.0

But you'll wanna upgrade your fuel pump for safety, just so its new and 100% reliable

Also your probably gonne see that it only takes 75 hp jets to cut a full second off, and only another tenth or 2 with the 125's

Then youll just stick with the 75's and that's super safe. Safe enuff that I have run 14* timing and stock plugs gapped .042" with midgrade

Don't make it a habit though

I really like the NOS 5115 dry kit

I have used zex, edelbrock and NOS kits

I prefer NOS for various reasons....better selonoids, beefier other components as well
 
Posted by 510.86.notch (Member # 9892) on :
 
quote:
Originally posted by nitrous_bob:
Under 125 is perfectly safe on bone stock 5.0

But you'll wanna upgrade your fuel pump for safety, just so its new and 100% reliable

Also your probably gonne see that it only takes 75 hp jets to cut a full second off, and only another tenth or 2 with the 125's

Then youll just stick with the 75's and that's super safe. Safe enuff that I have run 14* timing and stock plugs gapped .042" with midgrade

Don't make it a habit though

I really like the NOS 5115 dry kit

I have used zex, edelbrock and NOS kits

I prefer NOS for various reasons....better selonoids, beefier other components as well
sounds good thanks for the knowledge.
 




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