Can Anyone Desktop Dyno My Combo? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69sixpackbee · 05-23-2005, 12:19 PM

I am trying to dial in my 402 with the Megasquirt EFI system I built and installed and I need some fairly close HP & torque figures I can plug into the VE map and finish setting it up. If anybody has a Desktop Dyno that can help me out I would greatly appreciate it!
Heres the scoop:
Stock bore 402
Stock CR (9.0:1?)
Comp Cams XE250H cam (470lift/250dur Intake 475/260 Exhaust 110 degree center) 600-4800 RPM range
Performer dual plane intake.
Sock oval port heads
Stock exhaust manifolds w/ dual pipes

Did I miss anything??
Thanx!

Dean23 · 05-23-2005, 12:24 PM

what size carb are you running????

69sixpackbee · 05-23-2005, 12:25 PM

I have a 2bbl TBI from a 454 on it. Twin 51MM bores with 85lb/hr injectors.

Dean23 · 05-23-2005, 12:33 PM

I got about 308 hp @ 4500 rpm and 401 ft/lbs @ 3000 rpm. the numbers hould be slightly higer though. there isnt a spec for throttle body injection. if you throw a set of headers on ther you should get closer to 340 hp and 435 ft/lbs

69sixpackbee · 05-23-2005, 03:01 PM

Thanx Deano!!

05-23-2005, 12:19 PM	#1
69sixpackbee Registered User Join Date: Jan 2001 Location: Sabinal, Texas Posts: 1,706	Can Anyone Desktop Dyno My Combo? I am trying to dial in my 402 with the Megasquirt EFI system I built and installed and I need some fairly close HP & torque figures I can plug into the VE map and finish setting it up. If anybody has a Desktop Dyno that can help me out I would greatly appreciate it! Heres the scoop: Stock bore 402 Stock CR (9.0:1?) Comp Cams XE250H cam (470lift/250dur Intake 475/260 Exhaust 110 degree center) 600-4800 RPM range Performer dual plane intake. Sock oval port heads Stock exhaust manifolds w/ dual pipes Did I miss anything?? Thanx!

05-23-2005, 12:24 PM	#2
Dean23 68cst_ss490 Join Date: May 2001 Location: edmonton,canada Posts: 1,363	what size carb are you running???? __________________ Dean edmonton,canada a winter wonderland 2005 Chevrolet Avalanche LT cold air intake, performance exhaust, Comp cams cam, jba shorty ceramic headers. http://www.cardomain.com/ride/3090973

05-23-2005, 12:25 PM	#3
69sixpackbee Registered User Join Date: Jan 2001 Location: Sabinal, Texas Posts: 1,706	I have a 2bbl TBI from a 454 on it. Twin 51MM bores with 85lb/hr injectors. Last edited by 69sixpackbee; 05-23-2005 at 12:28 PM.

05-23-2005, 12:33 PM	#4
Dean23 68cst_ss490 Join Date: May 2001 Location: edmonton,canada Posts: 1,363	I got about 308 hp @ 4500 rpm and 401 ft/lbs @ 3000 rpm. the numbers hould be slightly higer though. there isnt a spec for throttle body injection. if you throw a set of headers on ther you should get closer to 340 hp and 435 ft/lbs __________________ Dean edmonton,canada a winter wonderland 2005 Chevrolet Avalanche LT cold air intake, performance exhaust, Comp cams cam, jba shorty ceramic headers. http://www.cardomain.com/ride/3090973

05-23-2005, 03:01 PM	#5
69sixpackbee Registered User Join Date: Jan 2001 Location: Sabinal, Texas Posts: 1,706	Thanx Deano!!



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