got head?

[ogre]

ok, simple question, for a street ridden, 12.5:1 1397, would a cnc ported head, 1/2 inch studs, and some stage 2 ape cams be worth the cost? motor will be apart for the big bore kit anyway, crank will be balanced for fewer vibes and higher rev limit. it's gonna cost another 2g's or so to do the top end. i've always thought if it's worth doing, it's worth overdoing. so big bore owners chime in

 

[racerV]

Talk to GixxerHP I think that he does these for people and I have ridden Grumpys bike after it was completed and all I can is is OMFG! It felt much more powerful than my 08 ever thought of being and I think the cost was right at $2K.

 

[Wild07]

If you're doing cams(bigger thank dual intakes) a ported head will help. I just finished putting my 1397 dual intake, 12:1cr motor back together and in my bike. Busa power is in the HEAD, all of it. Your final head to piston clearance is going to make a big difference in horsepower also. I think you'd be surprised how well a stock head flows.

 

[ogre]

i could just get the stage 2 cams with the other goodies, but i keep hearing that the power is in the head, and my thoughts are a cnc ported semi race head will make more of it.

 

[Wild07]

if youre going to do the cams(dont know the specs on the stage2) it'd probably be worth the extra $$$ to do a port job.

 

[ogre]

see, that's what i'm thinking. what's another 1500 bucks when my wife already ok'd it? and some half inch head studs while i'm at it.

 

[turbobusa2000]

Half inch studs are over kill on a NA bike in my opinion. Why not some APE promods or ARP drop ins. No machining required.

 

[ogre]

that's why i started the thread, lol. to get opinions. so you think the APE promod studs will be enough, then that'll probably be fine.

 

[Commuta_Busa]

I ran OE head bolts on my street ridden 1585 years. You're not going extreme with a street engine. If it makes you feel better then goto some drop in repalcements.

 

[ogre]

so oem bolts huh? are they tty or reusable?

 

[Johnnycheese]

call Bill at Porttech tell him I sent you and you will be happy

 

[ogre]

where?

 

[B@DA$$08BUS@]

I would spend the extra money if you are doing cams and that, money well spent. but then again if only for street riden' I may not.

 

[Blanca BusaLess]

Can you simply just port the head without adding or changing anything else in a GenII ?
And if so how many HP if much do you think that would add ?
Reason I ask is shop I use is famous here for headwork .

 

[Johnnycheese]

PORT-TECH Motorcycle Performance Cylinder Heads/Racing engines - Home

where?

 

[smithabusa]

yeah 1/2" studs are overkill on most turbo installations. Stock bolts are re-useable not TTY. If you want studs i would go APE Promods or ARP's like suggested above.

 

[ogre]

if the stock bolts are reusable, then i won't bother unless it gets torn down a second time. then i'd probably go with the promods. they are quite a bit more reasonable than the cnc head package from ape. i'm still not certain which direction i'm going. the only things for certain are that i want to go 1397 and i want 12.5:1 compression, in case i get stationed somewhere that 93 octane isn't available.

 

[slatroni]

You will like the 1397! I just finished mine. Ape 1397 block w/ JE 12.8:1 pistons and two intake cams. I upped my fuel pressure to 58# with the regulator squeeze. I just ordered a muzzys E series pipe too! I also insulated the air box. The bike pulls hard, even at 140! I can't wait to get her on the dyno for a tune!

 

[3cRider]

You will like the 1397! I just finished mine. Ape 1397 block w/ JE 12.8:1 pistons and two intake cams. I upped my fuel pressure to 58# with the regulator squeeze. I just ordered a muzzys E series pipe too! I also insulated the air box. The bike pulls hard, even at 140! I can't wait to get her on the dyno for a tune!

Post the numbers when you do, I'm looking at a similar setup. To the OP, quality head work is key. If not, you'll regret it from the moment you button everything back up. You'll be thinking, "well I was in there already, I should have just..."

 

[tofas2c]

Half inch studs are over kill on a NA bike in my opinion. Why not some APE promods or ARP drop ins. No machining required.

Half inch are over kill and the promods will save you time and money in machine work. put the money in the head.