EHS LID... the HP cost of the additional protection

DL700 · 02-08-2010, 02:33 AM

Some guys like to run the EHS air lids for more protection from dirt/mud/ water debris gettin into the air box and eventually on to the air filter....
when your lookin for power that is gonna cost u some...

the build..

stock bore 700 with duals, pc3, piston , cam , tb, pro design intake

with and without EHS lid,,,,

little over 1 hp loss peak and 2 hp in the mid rpm...with the lid on

Spartan700r · 02-08-2010, 06:55 AM

Have you done a similar comparison with the pro-tec lid?

DL700 · 02-08-2010, 10:15 AM

Quote:

Originally Posted by Spartan700r

Have you done a similar comparison with the pro-tec lid?

no we haven't....but my suspicion is there will still be a loss there....

SegKast · 02-08-2010, 10:19 AM

Free HP ! Lose the lid

Good info for sure Daniel

rappyfreak · 02-08-2010, 01:08 PM

I love my EHS lid, hate cleaning the filter and the lid extends my filter's cleanliness. Good info Daniel, I pretty much expected this loss but the extra protection I get on the kinds of trails I ride is worth it.

Mandy · 06-17-2010, 12:41 PM

same result for me. near 1.5 hp over all the power band

DL700 · 06-17-2010, 01:43 PM

Quote:

Originally Posted by Mandy

same result for me. near 1.5 hp over all the power band

thanks for the additional input!

EHSRACING · 06-17-2010, 07:22 PM

dang i never saw this

honestly thats not to bad the loss is less on a lower hp bike on a 60 hp bike thats starting to flow pretty well the plate size we use on the 700's is a little small for a 60 hp build. On a 3 mod or 4 mod you would generally see less than a 1hp loss with the lid at most and almost none everywhere

DL700 · 06-17-2010, 07:28 PM

Much better then running the stock lid!!

phucker · 06-19-2010, 10:40 AM

ya for sure daniel, i mean it costs 1hp to run, that is great, i mean for the added protection and less maintenance 1 hp aint to bad. plus for the guys who need these i wouldnt think they are in that section of the powerband to often.

02-08-2010, 02:33 AM	#1 (permalink)
DL700 SPONSOR: HIGH DESERT DYNO Join Date: May 2008 Location: So-Cal. hesperia Posts: 3,425	EHS LID... the HP cost of the additional protection Some guys like to run the EHS air lids for more protection from dirt/mud/ water debris gettin into the air box and eventually on to the air filter.... when your lookin for power that is gonna cost u some... the build.. stock bore 700 with duals, pc3, piston , cam , tb, pro design intake with and without EHS lid,,,, little over 1 hp loss peak and 2 hp in the mid rpm...with the lid on __________________ HIGH DESERT DYNO Mobile Dyno Service 951-743-6328 HIGHDESERTDYNO@YAHOO.COM WWW.HIGHDESERTDYNO.COM Located in Hesperia and serving all of SOUTHERN CALIFORNIA Performance ATV parts and service. HIGH PERFORMANCE MOTOR BUILDS Specializing in tuning EFI ATV's, and dealing only the best parts for your ride from: Dynojet, DYNATEK, WEB, Hotcams, CP, RE, WK, WELLER, DMC and many many more! Yeah, But does it go FAST?!? *TEAM CUERVO/HDD*

02-08-2010, 06:55 AM	#2 (permalink)
Spartan700r Modding the Motor Join Date: Jul 2009 Location: Florida Posts: 716	Have you done a similar comparison with the pro-tec lid? __________________ 2008 Raptor 727/700 base...with flexx bars and shit like that RIP COOP! http://www.moddedraptor.com/communit...3-26-10-a.html

02-08-2010, 10:19 AM	#4 (permalink)
SegKast Asshole Join Date: May 2008 Location: Oly,WA Posts: 2,388	Free HP ! Lose the lid Good info for sure Daniel __________________ R.I.P. Brother.

02-08-2010, 01:08 PM	#5 (permalink)
rappyfreak Bolt-on Beginner Join Date: Jul 2009 Location: Guatemala Posts: 148	I love my EHS lid, hate cleaning the filter and the lid extends my filter's cleanliness. Good info Daniel, I pretty much expected this loss but the extra protection I get on the kinds of trails I ride is worth it. __________________ My name is Iñigo Montoya, you killed my father, prepare to die!!!

06-17-2010, 07:22 PM	#8 (permalink)
EHSRACING Bolt-on Beginner Join Date: Oct 2009 Posts: 123	dang i never saw this honestly thats not to bad the loss is less on a lower hp bike on a 60 hp bike thats starting to flow pretty well the plate size we use on the 700's is a little small for a 60 hp build. On a 3 mod or 4 mod you would generally see less than a 1hp loss with the lid at most and almost none everywhere __________________ EHS Racing Barkers Performance I have come here to chew bubble gum and kick ass and I'm all out of bubble gum.

06-17-2010, 12:41 PM	#6 (permalink)
Mandy Stock, ready to MOD Join Date: Apr 2010 Posts: 19	same result for me. near 1.5 hp over all the power band

06-17-2010, 07:28 PM	#9 (permalink)
DL700 SPONSOR: HIGH DESERT DYNO Join Date: May 2008 Location: So-Cal. hesperia Posts: 3,425	Much better then running the stock lid!! __________________ HIGH DESERT DYNO Mobile Dyno Service 951-743-6328 HIGHDESERTDYNO@YAHOO.COM WWW.HIGHDESERTDYNO.COM Located in Hesperia and serving all of SOUTHERN CALIFORNIA Performance ATV parts and service. HIGH PERFORMANCE MOTOR BUILDS Specializing in tuning EFI ATV's, and dealing only the best parts for your ride from: Dynojet, DYNATEK, WEB, Hotcams, CP, RE, WK, WELLER, DMC and many many more! Yeah, But does it go FAST?!? *TEAM CUERVO/HDD*

06-19-2010, 10:40 AM	#10 (permalink)
phucker I am smarter than you.... Join Date: May 2008 Posts: 1,963	ya for sure daniel, i mean it costs 1hp to run, that is great, i mean for the added protection and less maintenance 1 hp aint to bad. plus for the guys who need these i wouldnt think they are in that section of the powerband to often. __________________ RIP COOP, you are and always will be missed bud www.barkersexhaust.com www.jdperformance.net www.poorboy-performance.com/

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