RWHP difference between a 87 and 92 tune?
03-30-2008, 12:07 AM
#21
5th Gear Member
Join Date: Oct 2006
Location: Baytown, TX
Posts: 3,115
RE: RWHP difference between a 87 and 92 tune?
ORIGINAL: miloman
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.
ORIGINAL: NaplesFL03GT
Something us Floridians ever hardly have. I know the heat and humidity in the summer time just has to sap power away.
ORIGINAL: Ford_Dude
BTW you know a cold day adds HP
BTW you know a cold day adds HP
I know the heat and humidity in the summer time just has to sap power away.
So much for breaking in the new suspension.
rock on near but not under sea level
[/align]LOL........Good one Norm[/align]
03-30-2008, 12:19 AM
#23
2nd Gear Member
Join Date: Jun 2005
Location: Confusion
Posts: 432
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.
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.
03-30-2008, 12:24 AM
#24
5th Gear Member
Join Date: May 2005
Location: S.burbs Chicago
Posts: 4,793
RE: RWHP difference between a 87 and 92 tune?
ORIGINAL: Local Yokel
I too have about a 22hp diff between my 91 and 93 tunes, but I can feel the difference in the SOTP..........
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.
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.
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)
03-30-2008, 01:19 AM
#25
2nd Gear Member
Join Date: Jan 2006
Posts: 184
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".
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".
03-30-2008, 03:48 AM
#26
2nd Gear Member
Join Date: Jun 2005
Location: Confusion
Posts: 432
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".
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".
03-30-2008, 05:53 AM
#27
5th Gear Member
Join Date: Dec 2004
Location: Small walk way by big walk way
Posts: 4,717
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."
03-30-2008, 07:48 AM
#28
5th Gear Member
Join Date: Jun 2007
Location: Decatur AL USA
Posts: 2,176
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
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
03-30-2008, 02:09 PM
#29
6th Gear Member
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.
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.
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