Spade

I am trying to compaire the HX vs. EX I want to see the difference in the powerband. I know the EX has more however, how close and what is the difference.

Note: D16Z6 and D16Y8 dynos!!

Here is the HX dyno even though it has already been posted before I just want to give you EX drivers a little something to attempt to proove your "power" :snicker:

VTC_CiViC

I know JRSC has some baselines of Z6's and Y8's


96 EX basline


99 EX basline w/ intake and some header


95 EX baseline stock



99 Si w/ exahust


I dunno, JR's numbers seem a little on the low side to me, but then again dyno's very from model to model, an we don't know about the shape of those motors tested, but it should be good for basic comparisons. I shoulda dyno'd my Civic when stock


[Modified by VTC_CiViC, 12:42 PM 2/21/2002]

Spade

95 EX

96 EX

99 EX

VTC_CiViC

Interesting, although the Z6 put out about 6 more whp baseline than the 96 Y8, they made almost identical numbers on the blower... then the 99 Y8 (which made more power than the 96 baseline) made less hp than either the 96 Y8 or the Z6.. OBD sucks

EDIT: Another interesting tidbit, when comparing the charts, all the motors in question (Z6, Y8 and Y5) make about the same power from 4.5k-6k... including the B16A2!


[Modified by VTC_CiViC, 12:47 PM 2/21/2002]

Spade

I have only been looking at the 3000 RPM mark on the Baselines however, they get worse each year.

96 SOHC VTEC

Well I don't have a scanner, but I have both of my dyno sheets right here in front of me.

First run I put down 112.8hp and 101.2tq.

Second run I got 110.8hp and 100.8tq.

I have a 96 Civic Ex Coupe with over 80k on it. The only mod I had on the run was an AEM CAI.

VTC_CiViC

Not bad, you figure about 106-107whp stock

VTC_CiViC

Did you guys notice the torque comparisson on the B16 and D16? From about 2700-6krpm there is a massive dip in torque on the B16, much lower than the smaller dip on the D16. LOL, D16 actually carries more mid-range torque than the B16.. well, not supprised really

Spade

Always new the B16 was torqueless.

ryand16y8

how could you say you figure 106.. or what ever stock?! Look at the 99 EX before it was supercharged, it only pushed out 104.7 with intake and header. My 00' civic EX, with AEM CIA, 5Zigen Cat-Back, and DC 4-2-1 header only pumps out 110 to the wheels, with 17" rims... that's so crappy. I suggest nobody should ever buy 3rd party mods. it's cheaper to get a WRX.


[Modified by ryand16y8, 2:29 AM 2/28/2002]

robinson

I've got brandon's HX beat!

FifthGearOnline

i should dyno my car, just cuz im curious as to what kinda HP i have.....

Spade

Baseline for D16Y7 and with Supercharger

96 SOHC VTEC

That sucks. I put down more than that with just intake.

fsp31

>>That sucks. I put down more than that with just intake. <<

I think what we may be seeing here is some variability from dyno to dyno. They're at different altitudes, barometric pressures, etc. The dynos themselves are different ages, run by different operators, etc. etc. Software, combined with a barameter and thermometer account for some differences in weather and altitude, but there's still some variability. There's even the friction coeficient between your wheels and the dyno drum. 205 tires vs. 195's... If Bubba cranks down real hard on the straps that are holding your car in place, that can easily make a 3-5 hp difference in the final total.

I noticed a "stock" DX with a dyno of 93.5 hp. That's *very* high for a stock DX (about 6 hp high compared to our data). Obviously, I'm not doubting the validity of the test, but just making the point that the final numbers on a dyno chart shouldn't be taken too seriously. Unless all our cars were dynoed on the same machine on the same day by the same crew, it's tough to make accurate comparisons.

There's also the fact that we're talking about really small differences in the dyno data. As Honda enthusiasts, we "live or die" by 5 hp (which in my case makes up a significant % of total hp...). The rest of the automotive tuning world sees differences this size as being too small to worry about most of the time. So, we can't expect dyno tuning equipment to be perfectly accurate.

Spade

That is why I pulled all but the HX from Jackson racing. Same Dyno, same altitude, just baro is different.

HXMan

Wow....how much does the SC kit for a DX cost? $2000? Definitly not worth it IMO!!!

Look at the graph, sure, increases nearly everywhere but the gains are soooo small! I suppose a good header, and exhuast combo would help lots, but it seems he would just have been better off with something like a b18c swap.

96 SOHC VTEC

Yeah I know that there things to consider when you are dynoing your car. However, looking at the graphs and then looking at mine, I am not seeing justification for spending another $800 or so just to get like 4hp. Header and exhaust is a waste IMO.

eg6ajk

JDM D15B sohc vtec (header, exhaust + different ecu/chips)


currently sporting Zex 59300 cam + B-series TB, no dyno (the project is sold)

Spade

Did you also see the temps? Baseline was at 92 Degrees while the Supercharged was at 70 something.