need some advise

mwayneharris · 07-13-2009, 05:30 PM

hi every one. im getting ready to build a robin 290 motor. building motors is not new to me. but i am used to 8cyls not 2. i dont mind taking a motor to its limits. ive read a lot of threads on here and some say you can get 15hp or more out of this engine and others say you cant. face it any one can buy a big block. but whats the fun in that. if some one can guild me in the right way i would be thankful. thanks again mike

TheNewGuy · 07-15-2009, 09:25 AM

Quote:

Originally Posted by mwayneharris

hi every one. im getting ready to build a robin 290 motor. building motors is not new to me. but i am used to 8cyls not 2. i dont mind taking a motor to its limits. ive read a lot of threads on here and some say you can get 15hp or more out of this engine and others say you cant. face it any one can buy a big block. but whats the fun in that. if some one can guild me in the right way i would be thankful. thanks again mike

oh, they are fun!

WILD-BILL · 07-15-2009, 09:51 AM

If your going into the motor already I would consider the 350 w/ a 295 head. I did it to mine and the difference is amazing.

divot61 · 07-15-2009, 05:21 PM

im yet to try that bill, gonna be a few months till i can, let you know how much of an improvment i see in it

pizzamaker · 07-15-2009, 05:50 PM

my two cents is if you have a usable 295 build it, the 350 with the 295 head does work well. but you need to find the 350 block! there around but they go for a good buck and you can get the same outcome with the engine you have.

as you already know, HP and torque don't always go hand in hand! the v twins give you alot of torque at low rpm's and the 295/350's need to turn fast to make power. the ignitor has a rev limiter so you will need to upgrade the iginition as well as other things.

mwayneharris · 07-15-2009, 07:27 PM

i a msd box that i was going to use. i was wondering how much i should take off the block. ive all ready ported and polished the head putting ss vaules in with race springs. this weekend. wondering about cam.

pizzamaker · 07-15-2009, 07:37 PM

the block may or may not need to be decked, your piston choice will determine that.

07-13-2009, 05:30 PM	#1
mwayneharris Not Yet Wild Join Date: May 2009 Location: northen va. Posts: 12	need some advise hi every one. im getting ready to build a robin 290 motor. building motors is not new to me. but i am used to 8cyls not 2. i dont mind taking a motor to its limits. ive read a lot of threads on here and some say you can get 15hp or more out of this engine and others say you cant. face it any one can buy a big block. but whats the fun in that. if some one can guild me in the right way i would be thankful. thanks again mike

07-15-2009, 09:51 AM	#3
WILD-BILL Gone Wild Join Date: Jun 2009 Location: BROOK PARK, OH Posts: 194	Re: need some advise If your going into the motor already I would consider the 350 w/ a 295 head. I did it to mine and the difference is amazing.

07-15-2009, 05:21 PM	#4
divot61 Gone Wild Join Date: Apr 2009 Location: indiana Posts: 274	Re: need some advise im yet to try that bill, gonna be a few months till i can, let you know how much of an improvment i see in it

07-15-2009, 05:50 PM	#5
pizzamaker ****tard supreme Join Date: Jun 2008 Location: waldo,wisconsin Posts: 5,401	Re: need some advise my two cents is if you have a usable 295 build it, the 350 with the 295 head does work well. but you need to find the 350 block! there around but they go for a good buck and you can get the same outcome with the engine you have. as you already know, HP and torque don't always go hand in hand! the v twins give you alot of torque at low rpm's and the 295/350's need to turn fast to make power. the ignitor has a rev limiter so you will need to upgrade the iginition as well as other things.

07-15-2009, 07:27 PM	#6
mwayneharris Not Yet Wild Join Date: May 2009 Location: northen va. Posts: 12	Re: need some advise i a msd box that i was going to use. i was wondering how much i should take off the block. ive all ready ported and polished the head putting ss vaules in with race springs. this weekend. wondering about cam.

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07-15-2009, 07:37 PM	#7
pizzamaker ****tard supreme Join Date: Jun 2008 Location: waldo,wisconsin Posts: 5,401	Re: need some advise the block may or may not need to be decked, your piston choice will determine that.

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