Notices
2005-2014 Mustangs Discussions on the latest S197 model Mustangs from Ford.

RWHP difference between a 87 and 92 tune?

Old 03-30-2008, 12:07 AM
  #21  
Ford_Dude
5th Gear Member
 
Join Date: Oct 2006
Location: Baytown, TX
Posts: 3,115
Default RE: RWHP difference between a 87 and 92 tune?

ORIGINAL: miloman
ORIGINAL: NaplesFL03GT
ORIGINAL: Ford_Dude
BTW you know a cold day adds HP
Something us Floridians ever hardly have. I know the heat and humidity in the summer time just has to sap power away.
Move to Reno, NV. I live at about 5,300 ft above sea level. It was a fairly nice day today.......close to 50 degrees. Right now, 8:53 pm, it's freezing a$$ cold,crazy wind (gusts around45-60 mph easily), and it's trying to snow again.[:'(][:@]So much for breaking in the new suspension.
Also being at a lower altitude adds HP

rock on near but not under sea level
Ford_Dude is offline  
Old 03-30-2008, 12:09 AM
  #22  
Ford_Dude
5th Gear Member
 
Join Date: Oct 2006
Location: Baytown, TX
Posts: 3,115
Default RE: RWHP difference between a 87 and 92 tune?

ORIGINAL: Bluestar
"Minority group member - I'm over 16 "
[/align]LOL........Good one Norm[/align]
I guess I'm also in that Minority
23 here
Ford_Dude is offline  
Old 03-30-2008, 12:19 AM
  #23  
Local Yokel
2nd Gear Member
 
Join Date: Jun 2005
Location: Confusion
Posts: 432
Default RE: RWHP difference between a 87 and 92 tune?

ORIGINAL: marcuskeeler

No, I think that's a good point. The difference between my FI 91 & 93 tunes equates to 20rwhp difference. Even thoughI've seen the numbers on the dyno to prove that, my SOP-meter cannot tell the difference during spirited street use.
I too have about a 22hp diff between my 91 and 93 tunes, but I can feel the difference in the SOTP..........
Local Yokel is offline  
Old 03-30-2008, 12:24 AM
  #24  
Stoenr
5th Gear Member
 
Stoenr's Avatar
 
Join Date: May 2005
Location: S.burbs Chicago
Posts: 4,791
Default RE: RWHP difference between a 87 and 92 tune?

ORIGINAL: Local Yokel

ORIGINAL: marcuskeeler

No, I think that's a good point. The difference between my FI 91 & 93 tunes equates to 20rwhp difference. Even thoughI've seen the numbers on the dyno to prove that, my SOP-meter cannot tell the difference during spirited street use.
I too have about a 22hp diff between my 91 and 93 tunes, but I can feel the difference in the SOTP..........
Same here, I went to the 87 for 2 tanks or so and was like ew, forget this, im going back to 93.
skip the big mac one time a week and it will offset the difference in the price of the gas.

I also use the excuse to drive to Indiana where gas is 10-20 cents cheaper, making up the difference in the price here in Illinois, lol. Good reason for a cruise. (plus Im out that way a lot anyway, I live near the border)
Stoenr is offline  
Old 03-30-2008, 01:19 AM
  #25  
alumacomp
2nd Gear Member
 
Join Date: Jan 2006
Posts: 184
Default RE: RWHP difference between a 87 and 92 tune?

20 HP difference between 91 and 93 tunes????

I am running the Evolution 91 tune. I was considering the 93 tune so asked Fred what difference it would make in HP. His answer, "they are pretty much the same tune".
alumacomp is offline  
Old 03-30-2008, 03:48 AM
  #26  
Local Yokel
2nd Gear Member
 
Join Date: Jun 2005
Location: Confusion
Posts: 432
Default RE: RWHP difference between a 87 and 92 tune?

ORIGINAL: alumacomp

20 HP difference between 91 and 93 tunes????

I am running the Evolution 91 tune. I was considering the 93 tune so asked Fred what difference it would make in HP. His answer, "they are pretty much the same tune".
Im running a blower ....
Local Yokel is offline  
Old 03-30-2008, 05:53 AM
  #27  
Daniel60
5th Gear Member
 
Daniel60's Avatar
 
Join Date: Dec 2004
Location: Small walk way by big walk way
Posts: 4,717
Default RE: RWHP difference between a 87 and 92 tune?

93 will get you better gas mileage and more butt dyno power where as the 87 tune will be cheaper to purchase gas with however you will be cheated on gas mileage which you will not make the difference to warrant buying the "El cheapo."
Daniel60 is offline  
Old 03-30-2008, 07:48 AM
  #28  
Gene K
5th Gear Member
 
Join Date: Jun 2007
Location: Decatur AL USA
Posts: 2,176
Default RE: RWHP difference between a 87 and 92 tune?

This is from an old test but I think it may help clarify octane vs ignition timing in a normally apirated vehicle.


Basic Ignition Timing
Vehicle Retarded 5 degrees Standard Advanced 5 degrees
A 88 91 93
B 86 90.5 94.5
C 85.5 88 90
D 84 87.5 91
E 82.5 87 90
Gene K is offline  
Old 03-30-2008, 02:09 PM
  #29  
Nuke
6th Gear Member
 
Nuke's Avatar
 
Join Date: Jun 2007
Location: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)
Posts: 16,186
Default RE: RWHP difference between a 87 and 92 tune?

I asked a Brenspeed tech when I bought mine about that. He said I'd feel a bigger difference between the stock 87 and custom 87 tunes than that between the custom 87 and 93 tunes. My SOTP tells me he's right.

I run the 89 tune most of the time and have played with the 93. I like the feel of the 89 for all-around driving. The 93 tune seems like it pulls harder in the upper RPM ranges but a tad "doggier" in the low band.
Nuke is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Dragonus18
4.6L (1996-2004 Modular) Mustang
8
09-09-2015 01:21 AM
Boostaddict
Lethal Performance
2
09-08-2015 09:56 PM
MustangForums Editor
Street/Strip
5
09-08-2015 06:25 PM
hookergt
New Member Area
4
09-04-2015 06:57 AM
whatsup62
5.0L GT S550 Tech
1
09-03-2015 01:38 PM


Thread Tools
Search this Thread
Quick Reply: RWHP difference between a 87 and 92 tune?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.