Factory stock Fox "speed density" - Northern California Ford Owners

This is topic Factory stock Fox "speed density" in forum General Talk at Northern California Ford Owners .

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Posted by quickblue302 (Member # 7912) on :

How fast in the 1/4th mile, 5sd and auto?

Posted by SIC9250 (Member # 8216) on :

Would u really wanna waste your time trying [Roll Eyes]

but if so I'd say mid to high 15s [Big Grin]

Posted by 1sicmaro (Member # 9734) on :

I had a 87 fox when it was completely stock I ran 14.1 at 97mph

Posted by warhorse58gt (Member # 7702) on :

bone stock long block 86 capri sd.. has 3:73's full exhuast "shorties" no ac or smog pump. on dr's the car went 13.3x @ 101 [patriot]

Posted by J24I (Member # 2598) on :

87 Coupe with A/C, PS, & Smog pump

14.0 with o/r xpipe & bbk headers

13.3 adding 4.10s, U/D pullies, A/C delete, 555Rs

[ May 11, 2011, 12:36 PM: Message edited by: J24I ]

Posted by LUCKY 187 (Member # 4347) on :

88 coupe 14.0

Posted by quickblue302 (Member # 7912) on :

Last season I ran a best of 15.1 @ 97mph with a reaction time of .646. Ive only been to the track a few times so I don't know how to play the tree, I want to be able to say that I can out run a stock 5.0 in my stock 93 Lincoln [Big Grin]

Posted by racsirx (Member # 1710) on :

Stock to stock, speed density is faster than a mass air car.

Posted by 50DADDY (Member # 3076) on :

quote:
Originally posted by racsirx:
Stock to stock, speed density is faster than a mass air car.

Posted by 85notch5.0 (Member # 9804) on :

quote:
Originally posted by racsirx:
Stock to stock, speed density is faster than a mass air car.

Explain please...

Posted by quickblue302 (Member # 7912) on :

quote:
Originally posted by 50DADDY:

quote:
Originally posted by racsirx:
Stock to stock, speed density is faster than a mass air car.
+1

+2 Everyone knows that!,if you don't then hhahahahah [Roll Eyes]

[ May 11, 2011, 02:11 PM: Message edited by: quickblue302 ]

Posted by wilit (Member # 3367) on :

quote:
Originally posted by 85notch5.0:

quote:
Originally posted by racsirx:
Stock to stock, speed density is faster than a mass air car.
Explain please...

Speed density cars don't have a MAF, so they're lighter. [Razz]

Posted by Blind (Member # 3052) on :

quote:
Originally posted by 85notch5.0:

quote:
Originally posted by racsirx:
Stock to stock, speed density is faster than a mass air car.
Explain please...

SD cars make about 10hp more compared to a stock MAF car.

I lost a few mph in trap speed when I converted mine from SD to MAF back with the old stock motor with just bolt-ons.

Posted by racsirx (Member # 1710) on :

I always tell people if you not going to put a cam, or bigger injectors, or a blower there is no need to change over to mass air.

Posted by CobramanPhil (Member # 2170) on :

SD are a tad quicker (stock vs stock). I believe the main reason is party mechanical and partly due the eec. MAF has that restriction in the middle of the MAF to sample the incoming air...plus it is a straight shot to the upper intake in a stock SD setup. That has to account for something.

As far as the eec I think the SD cars run a tad leaner and that helps just a bit.

The big deal is that for a modded car..one of the first mods is to convert to MAF:)! SD cars do not do well with big modifications...

[ May 12, 2011, 04:27 PM: Message edited by: CobramanPhil ]

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