Quarter horse power gains? - Page 2

QWKSNKE · 03-25-2011, 12:59 PM

Quote:

Originally Posted by BIGDATOWN

For some reason I just find that hard to believe. Seems like you could really dial in for a perfect afr and whatever timing curve you would prefer.

if a stock 5.0 was detuned from the factory then yeah you are right, but they weren't. Yeah you can change the timing curve but you did that when you adjusted base timing to 15 degrees. It does the same thing. Same thing is done when you mess around with the fuel pressure by bumping it up. That changes the a/f ratio because the fox EEC's do not have the ability to correct the a/f beyond a 'x' percent.

If you buy an aftermarket MAF then you would benefit from a tuner because all aftermarket MAF's require fine tuning to get the driviability back where it was in stock form.

5.0 pushrod cars are not like the 03-04 cobras and s197 mustangs where they are detuned from the factory and you can gain 30-40rwhp from a tune

BIGDATOWN · 03-25-2011, 01:16 PM

No wideband, And I see what your saying qwk, A mass air is in the works also with a larger throttle body. And my factory bushings are shot, so new j&m control arms for the upper and lower are almost next on the list.

SlowJoe · 03-25-2011, 02:10 PM

Wide band would be my first tuning tool!

BIGDATOWN · 03-25-2011, 02:12 PM

I'm glad you brought that up to. If i purchase one do I just need one sensor or two? I would think one for each bank, but I am unsure what the average tuner does or needs.

SlowJoe · 03-25-2011, 02:22 PM

I just had one in mine. But it was behind the X in the x pipe. I think one will do for your needs. I believe in a wide band!!! I will be hooking one up on my 87 f150 4x4 soon to tune it in.

BIGDATOWN · 03-25-2011, 02:24 PM

I would assume you would just fine tune it with timing and fuel pressure? And do they offer a wide band that is set up for left and right bank just to be that much more accurate?

SlowJoe · 03-25-2011, 02:36 PM

They have them anyway you want them.

SlowJoe · 03-25-2011, 02:39 PM

but this was on a 02 gt with sct 3

http://www.streetstangs.net/showthread.php?t=13796

BIGDATOWN · 03-25-2011, 03:11 PM

How would I dial in my afr if i have any trouble without a tuning program?

coupe · 03-25-2011, 03:15 PM

Quote:

Originally Posted by BIGDATOWN

How would I dial in my afr if i have any trouble without a tuning program?

Adjustable MAF meters work pretty well, but they don't change the "MAF curve" which is really a requirement with alot of modifications. Your light amount of mods will probably not skew the A/F enough to make much difference. The O2 sensors should be able to keep up well enough. An adjustable fuel pressure regulator is a good idea anyway.

03-25-2011, 02:10 PM	#13
SlowJoe Mind Blowing Join Date: Jun 2006 Location: Dawsonville Ga Posts: 3,913	Wide band would be my first tuning tool! __________________ Slow Joe Racing 2008 dodge ram 5.7 HEMI 1993 lx with a 289 and a 3 speed on the floor WTB 1955 t-bird project

03-25-2011, 02:22 PM	#15
SlowJoe Mind Blowing Join Date: Jun 2006 Location: Dawsonville Ga Posts: 3,913	I just had one in mine. But it was behind the X in the x pipe. I think one will do for your needs. I believe in a wide band!!! I will be hooking one up on my 87 f150 4x4 soon to tune it in. __________________ Slow Joe Racing 2008 dodge ram 5.7 HEMI 1993 lx with a 289 and a 3 speed on the floor WTB 1955 t-bird project

03-25-2011, 02:36 PM	#17
SlowJoe Mind Blowing Join Date: Jun 2006 Location: Dawsonville Ga Posts: 3,913	They have them anyway you want them. __________________ Slow Joe Racing 2008 dodge ram 5.7 HEMI 1993 lx with a 289 and a 3 speed on the floor WTB 1955 t-bird project

03-25-2011, 02:39 PM	#18
SlowJoe Mind Blowing Join Date: Jun 2006 Location: Dawsonville Ga Posts: 3,913	but this was on a 02 gt with sct 3 http://www.streetstangs.net/showthread.php?t=13796 __________________ Slow Joe Racing 2008 dodge ram 5.7 HEMI 1993 lx with a 289 and a 3 speed on the floor WTB 1955 t-bird project

03-25-2011, 01:16 PM	#12
BIGDATOWN Senior Member Join Date: Aug 2010 Posts: 221	No wideband, And I see what your saying qwk, A mass air is in the works also with a larger throttle body. And my factory bushings are shot, so new j&m control arms for the upper and lower are almost next on the list.

03-25-2011, 02:12 PM	#14
BIGDATOWN Senior Member Join Date: Aug 2010 Posts: 221	I'm glad you brought that up to. If i purchase one do I just need one sensor or two? I would think one for each bank, but I am unsure what the average tuner does or needs.

03-25-2011, 02:24 PM	#16
BIGDATOWN Senior Member Join Date: Aug 2010 Posts: 221	I would assume you would just fine tune it with timing and fuel pressure? And do they offer a wide band that is set up for left and right bank just to be that much more accurate?

03-25-2011, 03:11 PM	#19
BIGDATOWN Senior Member Join Date: Aug 2010 Posts: 221	How would I dial in my afr if i have any trouble without a tuning program?