Big bore ?'s 558/550

atvfan2010 · 05-04-2010, 10:22 AM

Well after my last post Drag racing ?'s I feel like a complete dumbass... But i got some questions. I'm buyin the HPD 558 BB soon hopefully next week. I'm running stage one hot cams and was wondering if i should junk those and go back to stock or get the webcams 260i grind. Anyone know about how much the webcams would cost in the end? Also are they bolt in or not? Has anyone ever used any of the products made by aaenperformance.com? http://www.aaenperformance.com/Predator.aspThey do have a very nice custom intake I'm going to buy which is straight clamp on from the carb and comes with a plate to stop mud and crap haha.. And what about their high lifter cams and their 550bbk? Any help would be great...

atvfan2010 · 05-04-2010, 10:37 AM

Just found this on ebay http://cgi.ebay.com/ebaymotors/ws/eB...MakeTrack=trueLooks like a great deal it says it comes with a sleeve I wonder if i could just have it pressed in like the HPDsleeve or not.

homdaddy · 05-04-2010, 11:00 AM

if i was building on a budget i would build this.
hpd 558
stock cams redegreed
fcr conversion
modded stock header with the muzzy slip-on
a good clutch with stiff springs
and tires for the type of racing

atvfan2010 · 05-04-2010, 11:31 AM

Ha ok sounds good to me.. Ha now where or how do i do the fcr conversion

atvfan2010 · 05-04-2010, 11:37 AM

I heard something about using 450r carbs?

nickbarden · 05-04-2010, 11:39 AM

Yeah, the 04-05 carbs will bolt up with some throttle cable modification and the 06 and up carbs require an adapter.

atvfan2010 · 05-04-2010, 11:45 AM

Hmm very cool thanks will try to pick something up off ebay.. what kind of cable mods? haha sorry I just dont know much about all of this stuff haha

Outlaw930 · 07-08-2011, 01:16 PM

I want to do a big bore bolt on kit bit not sure what one to get any suggestions? I want to go with an aggressive cam and P&P the head. Anything else I should do while it's torn apart? I have the 39mm fcr mx gonna bore it to a 42mm and a trinity slipon.

jmthepred · 07-08-2011, 05:45 PM

Quote:

Originally Posted by Outlaw930

I want to do a big bore bolt on kit bit not sure what one to get any suggestions? I want to go with an aggressive cam and P&P the head. Anything else I should do while it's torn apart? I have the 39mm fcr mx gonna bore it to a 42mm and a trinity slipon.

there are very few people who will touch a predator head nowadays. HPD still does. Porting has never been a bang for the buck with the fuji engine. I just think the ports are way to big to start off. I have a big bore stroker (bb/s) 646 108 x 70.6 and it does haul the mail for a pred. but not the fastest pred out there. But there are very few fast preds that I know of.

I have been working on porting and chamber designs and still have no solid answers yet. Trinity pipe is spendy and probably not the best. HMF has been a standard and I always recommend the HPD full pipe. it has real gains.
Your best cam on the market I know of is the HPD 480 but you need to be set up to turn the rpm +10,000 rpm needs a falicon rod and that raises the build cost a bit. $230 for the rod plus new crank pin and bearing $100 and weld and balance. either you split the cases or find someone who can do it for you.

I'm not saying web cams are bad they are not. you just need to know what rpm you are after and what type of riding. all parts carb,ignition,pipe,bore, porting,intake and exhaust need to be well thought out. research will save you money and time.
and visit my website : bigborepredators.com read everything you can find !

05-04-2010, 10:22 AM	#1 (permalink)
atvfan2010 Member Join Date: Mar 2010 Location: Alverda Posts: 93	Big bore ?'s 558/550 Well after my last post Drag racing ?'s I feel like a complete dumbass... But i got some questions. I'm buyin the HPD 558 BB soon hopefully next week. I'm running stage one hot cams and was wondering if i should junk those and go back to stock or get the webcams 260i grind. Anyone know about how much the webcams would cost in the end? Also are they bolt in or not? Has anyone ever used any of the products made by aaenperformance.com? http://www.aaenperformance.com/Predator.aspThey do have a very nice custom intake I'm going to buy which is straight clamp on from the carb and comes with a plate to stop mud and crap haha.. And what about their high lifter cams and their 550bbk? Any help would be great... __________________ 2007 Outlaw 500 - Full system Muzzy exhaust, K&N air filter, 165 main jet, hot cams stage one, JE 12.5/1 piston, 13 tooth front sprocket, and a home made intake.

05-04-2010, 10:37 AM	#2 (permalink)
atvfan2010 Member Join Date: Mar 2010 Location: Alverda Posts: 93	Just found this on ebay http://cgi.ebay.com/ebaymotors/ws/eB...MakeTrack=trueLooks like a great deal it says it comes with a sleeve I wonder if i could just have it pressed in like the HPDsleeve or not. __________________ 2007 Outlaw 500 - Full system Muzzy exhaust, K&N air filter, 165 main jet, hot cams stage one, JE 12.5/1 piston, 13 tooth front sprocket, and a home made intake.

05-04-2010, 11:31 AM	#4 (permalink)
atvfan2010 Member Join Date: Mar 2010 Location: Alverda Posts: 93	Ha ok sounds good to me.. Ha now where or how do i do the fcr conversion __________________ 2007 Outlaw 500 - Full system Muzzy exhaust, K&N air filter, 165 main jet, hot cams stage one, JE 12.5/1 piston, 13 tooth front sprocket, and a home made intake.

05-04-2010, 11:37 AM	#5 (permalink)
atvfan2010 Member Join Date: Mar 2010 Location: Alverda Posts: 93	I heard something about using 450r carbs? __________________ 2007 Outlaw 500 - Full system Muzzy exhaust, K&N air filter, 165 main jet, hot cams stage one, JE 12.5/1 piston, 13 tooth front sprocket, and a home made intake.

05-04-2010, 11:39 AM	#6 (permalink)
nickbarden Senior Member Join Date: Aug 2005 Location: Prophetstown Posts: 1,795	Yeah, the 04-05 carbs will bolt up with some throttle cable modification and the 06 and up carbs require an adapter. __________________ 2007 Outlaw 525 IRS 2008 Outlaw 525 IRS 2009 Sportsman 850

05-04-2010, 11:00 AM	#3 (permalink)
homdaddy Senior Member Join Date: Oct 2005 Location: washougal Posts: 818	if i was building on a budget i would build this. hpd 558 stock cams redegreed fcr conversion modded stock header with the muzzy slip-on a good clutch with stiff springs and tires for the type of racing

05-04-2010, 11:45 AM	#7 (permalink)
atvfan2010 Member Join Date: Mar 2010 Location: Alverda Posts: 93	Hmm very cool thanks will try to pick something up off ebay.. what kind of cable mods? haha sorry I just dont know much about all of this stuff haha __________________ 2007 Outlaw 500 - Full system Muzzy exhaust, K&N air filter, 165 main jet, hot cams stage one, JE 12.5/1 piston, 13 tooth front sprocket, and a home made intake.

07-08-2011, 01:16 PM	#8 (permalink)
Outlaw930 Junior Member Join Date: Jul 2011 Location: Bako CA. Posts: 1	I want to do a big bore bolt on kit bit not sure what one to get any suggestions? I want to go with an aggressive cam and P&P the head. Anything else I should do while it's torn apart? I have the 39mm fcr mx gonna bore it to a 42mm and a trinity slipon.