SGII Horsepower.
 

Quote:
Originally Posted by slurp812 https://www.gassavers.org/images/buttons/viewpost.gif
I see the same thing, maybe it doesn't like Honda's? I have an 2002 si, and its never read over 100, with my foot all the way to the floor. :eek:

How high was your RPM when your foot was on the floor?
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This needs a thread. Anyway. I did some watching. and my Horsepower on my SGII does seem OK. Here's the approximate numbers.

Idle (warm) : 5.0
steady 60 mph : 31-37
mild acceleration : 50-60
WOT @6000 (3rd): 129

I haven't done any extensive testing with it but I can get my cav in the triple digits with the hp reading. my car is only rated 115 or 120 hp.

I actually found it interesting that it took around 20 hp to sustain 55mph and (if I remember right) around 9hp at idle.

I did that before the WAI on my car so those numbers may be off with my current setup.

I still think of the scangauge as a "for indication only" device. the mileage on mine is never consistant but it doesn't pick up the DFCO on my car as well. the fact that it picks up the fuel use by air flow and not fuel flow also may skew those numbers as well.

before all this high gas price stuff really hit, I was looking into a G-tech performance meter (for my truck, not my car) that accurately showed torque and horsepower. it was about double what the scangauge was and I couldn't tell you the accuracy on that either so I still think of the scangauge as a good purchase. if you really cared about hp and performance, that would be the thing to get. it will do qtr mile times along with reaction times and 0-60 times. you can also download it into a computer so you can track trends and see the affects of performance equipment on your car. expensive though

After watching mine for a while now, I can say this. When i drive aggressive , it reads LESS that I am using. When I drive like grandma on sedatives, it reads more than I am using.

how do you check for horsepower on the SG2? I have only use it for instant mpg, rpm, speed, etc.

also sometimes i use the "average mpg" feature ( 1 feature only), can i put that with the instant mpg, rpm screen with 4 features?

If you really want to be more accurate on total hp...you need to be in a gear that is as close to 1:1 as possible and then do a WOT thru the rpm range.

civic94,

if you go to the scangauge web site, there are instructions for the X-gauge to give you hp. it is a long process with many numbers to be entered in but it is worth it and you only have to do it once. there are also instructions on how to input other X-gauges. I also have a/f ratio on mine.

if you happen to have an older one, it may not have the X-gauge feature but all the new ones do. bought mine in april and it had it so there is a good chance that yours does too.


darby,

I know when I had my truck dynoed, they put it in 4th gear (which is 1:1). they were running the hemi trucks up to around 50 mph and then punching them so that they would drop out of overdrive. not sure the ratio there but like you said close. my truck was a 5 speed so that was easy enough. I often wonder too if it displays the crank hp or the wheel hp. if I had to guess, I would say crank hp as my car would probably never see triple digits to the road.

I googled it a little, and came up with this:
https://www.tacomaterritory.com/forum...ad.php?t=82674
https://www.clubxb.com/forums/f2/scan...ead-25357.html

I cant do that legally! :) SO I settled for 3rd.

I had a similar issue with my truck on the dyno. mine redlines a little past 6k but my govoner is set at 118 mph. in 4th gear, I hit the govoner before I hit the rev limiter. it still showed me what I wanted to know. I asked the guy why he let off of it at 5700 rmps and he said that he didn't. I like my govoner and rev limiter. it keeps me from blowing stuff up.

just to clarify, my truck was strapped down and not going anywhere spinning a huge drum that was under it so I wasn't breaking any laws, just seeing what it would do.

I sold that truck a while back. baby on the way, had to get my finances straight.

ROFL!

I knew a guy wit an acura rsx-s. he put a lot of money into a custom programmed chip that changed many things including rev limits.

he floated the valves, lost power, tried to reset it, took it to the dealer, bought a new one.

the shop mechanic said that according to the codes, he had bent a valve. he followed that with, there is no way to do that because the car wouldn't let you do it. also, it was 2 years old.

he didn't modify the new one he bought (at all) and it made a lasting impression with me.

Ouch bent valve. Yes, that stuff does work. Generally, beating on a car ends up costing you $$$.

not to be completely ignorant but what is ROFL???

I assume (roll over freaking laughing) maybe, maybe not

Rolling On (the) Floor Laughing. :D

Don't forget the ROFLcopter...

https://www.kreativekorp.com/miscpage...roflcopter.gif

https://www.prinny.co.uk/images/roflcopter.gif

We now return you to regularly scheduled programming.

close enough. not much of an acronym guy. I am learning though.

I'm not old (in my opinion), just never got into all of the short hand terms.

btw, I'm 29 (actually 29, not 29 several times over)

I read on a forum once that the SG horsepower reading was dependent on the value you give for engine size. The person that posted that said he increased the value for engine size on his economy car to something like 8.0 liters and he was able to get 300+ horsepower to display.

Has anyone tried this? on that note, what the heck does inputting the engine size do for you anyways?

the engine size is part of a calculation that it uses. I think it calculates it based on the a/f ratio and the engine size that you input and it also uses rpms as well.

I know there are probably more complicated equations that it uses than that but it really doesn't know how big your engine is or even how many cylinders there are. that is a big reason also for the correction percentage.

I have been tempted to try to up my displacement to see what the scangauge would read but it would mess up your mpg readings as well.

ROFL Copter PWNS!!!!!1

Isn't that in place of the old scan gauge injector size setting???