codyace

JWT vs Enthalpy ECU comparison dyno results!! Another 400 whp CodyAce Built Car

Finally managed to get my buddies car on the dyno today. While we were
interested in the power it made, we also both finally wanted to see a direct comparison between the two major ECU Rom Tuners that support our SR20 cars, Jim Wolf Technolgy and RS Enthalpy. We have been running the car on both without ANY issue. Both get great MPG, both the tires off in 2nd gear, and both function just as OEM. Dont get me wrong, Standalones are cool and functional, but at the end of the day this is a Street Car -- and gets street parts.

Now before this turns into a mud slinging contest, it is not what I set this out to be. Enthalpy and JWT are BOTH top notch tuners, and both are two excellent sources for out of the box, turn key tunes that make kickass power while remaining livable and economical. I would hesistate for a MOMENT to suggest either of them, as I personally have had great results with both companies.

VIDEO: http://www.youtube.com/watch?v=RMuyXATr0Cc

Log and Run files (Thank you SoapGun!) http://driftwolrd.com/r/dynoandlogfiles.zip

Car Specs:
HP: 403 WHP
Torque: 323 Ft Lbs

Engine Specs:
SR20DET, 8.5:1 Compression, 86mm (stock bore/compression)
Built bottom end with CP Pistons, Stock Rods, Built by Cody Ace)
GT2871r .64 (T2 exhaust housing)
Jim Wolf Technology S3 Cams
Jim Wolf Technology ECU
Freddy Intake Manifold
Extrude Hone and Swained Exhaust Manifold, and Turbo
External Wastegate
3" exhaust
3" Inlet with Z32 MAF
72lb MSD's
(and all other associated parts)
Traps 120mph as well

I backed the car on, I got the computer ready to log, and we unlocked the brake. Ran the Enthalpy ECU at 10 psi, and then at 20 psi. Turned it off. Changed ECU's. And ran it again. Same conditions. The results are close, but it's evident that in this particular case the JWT ecu wins. Dyno RUn Files available upon PM, as well as Log Files from Datascan.

Results:

20psi
AFR: 11.8 to 12.0
Enthalpy: 381 HP / 310 Ft lbs
JWT: 400 HP/323 ft lbs

10psi:
AFR: 12.5ish for both
Enthalpy: 274 HP / 220 ft lbs
JWT: 279 HP/223 ft lbs

It's evident that at 10 psi, the differences are negligable, probably credited to the dyno itself. The results remain the same across all correction factors as well, but we like uncorrected to give a base number. STD showed the highest figures.

At 20 psi however, we were really surprised. The JWT ECU made nearly 20 more hp peak, and had a stronger powerband throughot. We were VERY happy with this. It's a damn near copy of my s14's setup (minus a few parts) and (go figure) the car makes similar power.

Graphs:
10 psi run on top, 20 psi run on bottom (Enthalpy Blue, JWT Red)

10psi


20psi




"Not bad" for a Junkyard Car

I'm not sure about you guys, but this car certainly doesn't look like its' got anymore than abotu 100 whp lol. I love it.






All in all, it was a nice day...one, because yet again I've got a 2871r car that I built at 400 whp level, and secondly, we finally got to test both of our ECU's out to see which one worked best right out of the box. Now with this said, I would love to send Martin and Clark the log files respectively to get a 'net reflash' to compare them again, as it would be interesting to see what there is 'left' in both tunes. We all can agree that an off the shelf tune from either is going to be conservative, just for safety sake...nobody wants the reputation of making HP, but melting pistons ya know?

FWIW: JWT S3 cams are the single best cams you can buy for T2/stock manifold cars. Most power, best graphs, and cheapest (as you don't need valvesprings). I don't care what anyone says, until I get a car that dynos differently, I'm going to stick by my guns.


As before, Dyno Run files and NissanDataScan Run files available via PM.

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