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Go Back   FZ1OA Message Board > FZ1 & Fazer Owners Association > Exhausts, Carburetion & Performance > Gen 2 Exhausts, Fueling & Performance

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Old 08-31-2010, 09:02 PM   #1
JonDaddy82
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*The R1 Cam Thread*

Well.

Blame it on Ivan, he got me thinking so I have been looking around all night.

We all know the basics: R1's have different cams, higher compression, a higher redline, and lighter cranks...thus they are faster.

The compression we can fix fairly easily by using a skinny head gasket.
The crank we can't do shit about unless you're an Arabian prince.
The redline can be adjust up 500 RPM with an Ignition Module.
The cams...well the cams. We know an R1 intake will fit. How about the exhaust?

Here are some threads relating to the whole thing:

http://yamahafz1oa.com/forum/showthread.php?t=107337
http://www.yamahafz1oa.com/forum/showthread.php?t=79145
http://yamahafz1oa.com/forum/showthr...t=87577&page=2

It looks like with a skinny gasket and R1 cams (if the exhaust fits) we could be up to more or less exact R1 HP figures...roughly just a tick under 160. I know back in the day JLewis_02 did the gasket/intake cam/DJ IM and was not pleased with the results. I think if the entire cam swap (intake/exhaust) along with having them degreed could have been done it might have made a difference.

Here's a basic parts list:

04-06 R1 intake cam: 5VY-12170-10-00
07-08 R1 exhaust cam: 4C8-12180-00-00
04-06 R1 Y.E.C. gasket: 5VY-11351-70-00
04-06 R1 inner valve spring: 5VY-12113-00-00 (12)
04-06 R1 outer valve spring: 5VY-12114-00-00 (8)
DynoJet Ignition Module: 6-38

Here's where it gets interesting. From the pictures, the 07-08 R1 exhaust cam looks different than the FZ1 cam. However Ivan has brought up that due to the fact that the FZ1 and 07-08 R1 DJ IM have the same part number, it should fit. Here are some pics to see the differences:

Stock:



04-06 R1:



07-08 R1:



FZ1's peak HP is at 11.5K, R1's seem to peak at 12.5K. After the rev limiter bump, the FZ1 should be peaking and redlining at 12.5K. In the drag racing situation after a shift it should only drop 1K or so. Based on that, it should be in the power during a full drag run.

Of course...this whole damn thing is in theory...based on the fact that the 07-08 R1 exhaust cam might fit. Now lets say all this works...lets talk about money.

The cams are about $283.
The valve springs are $85.
The YEC gasket is $105. (if you are super cheap, a split R1 gasket is $21)
The Ignition Module is about $350 retail, your price may very.

So, about $823 in stuff to gain 8-10 HP. That's right about the usual $100 per HP.
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Old 08-31-2010, 09:06 PM   #2
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http://cgi.ebay.com/ebaymotors/07-08...Q5fAccessories

These have your name on them.
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Old 08-31-2010, 09:07 PM   #3
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If I knew they'd fit I'd be all over it.
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Old 08-31-2010, 10:45 PM   #4
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I am in your corner Routing for you JD, Lat me know if it works so I don't waste my coin. LOL
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Old 08-31-2010, 11:10 PM   #5
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Wow!! PLEASE let us know if you get those 8-10hp. I would do this...
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Old 08-31-2010, 11:25 PM   #6
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Thats what i've been talking about a few days ago. If that works along with some valve port work and tuning the bike should pull like an R1 with BETTER lowband.

Some member must have a yammy workshop in here willing to try this out ?
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Old 09-01-2010, 03:16 AM   #7
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Maybe an '09 crank will fit.
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Old 09-01-2010, 05:38 AM   #8
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Why would you want that vibrating, no hp producing piece of junk?








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Old 09-01-2010, 06:39 AM   #9
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all that being said why not just buy an R1 and be done with it?
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Old 09-01-2010, 06:52 AM   #10
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I forget who it was, but someone over in the UK (if memory serves) simply put in the R1 head gasket and it raised the entire powerband about 2hp. It is a lot of work, but what the hell, if the head was off for some reason anyway, it seems like a no brainer. Also seems to me that even if the cam swap was made to work, the hp would simply be shifted from the midrange to the top end. I like the idea of more compression and more torque everywhere. I don't want to sacrifice power in the midrange.

JD needs a nicely modded ZX10 for the drag racing thing
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Old 09-01-2010, 08:05 AM   #11
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04-06 <> 07-08

Correct me please but didn't Yamaha change the R1 from a 5-valve to a 4-valve in 07?

You're going to have a really hard time making that pair work...
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Old 09-01-2010, 08:20 AM   #12
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Even if you changed it all the timing would be off. Different cams need different timing and since we can't change it in the ECU there is no point in changing cams. As soon as you change duration and ramp on the cam lobe the timing will be different. This is why they are ground to within 5 decimals (.00005 typically for a decent camshaft).

Being 1-2 degree's off at 10k rpms could easily make a 10hp difference.
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Old 09-01-2010, 08:32 AM   #13
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I encourage all of this discussion!

But, am I wrong...doesn't the R1 perform better in the 1/4 mile at least as much because of less weight and better streamlining, beyond the HP advantage?
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Old 09-01-2010, 09:34 AM   #14
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Quote:
Originally Posted by Satan666 View Post
Correct me please but didn't Yamaha change the R1 from a 5-valve to a 4-valve in 07?

You're going to have a really hard time making that pair work...
Yeah, it's in the picture. You can see 16 cam lobes = 16 valves. The exhaust cam would be the same number of valves though.

Good call.
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Old 09-01-2010, 12:29 PM   #15
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Quote:
Originally Posted by Rockhound View Post
Even if you changed it all the timing would be off. Different cams need different timing and since we can't change it in the ECU there is no point in changing cams. As soon as you change duration and ramp on the cam lobe the timing will be different. This is why they are ground to within 5 decimals (.00005 typically for a decent camshaft).

Being 1-2 degree's off at 10k rpms could easily make a 10hp difference.
This is totally incorrect

I am pretty sure that this setup will work..... we'll see what this winter brings.




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Old 09-01-2010, 02:39 PM   #16
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It would be sweet if this worked.
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Old 09-01-2010, 09:05 PM   #17
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Just buy my old Fz1 head and have it ported almost the same power improvements for alot cheaper.

It would be cool to see someone do what your looking at tho.
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Old 09-01-2010, 09:25 PM   #18
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Quote:
Originally Posted by amevl View Post
all that being said why not just buy an R1 and be done with it?
Simple...I already own a bitchin' FZ1.

Quote:
Originally Posted by Duken4evr View Post
JD needs a nicely modded ZX10 for the drag racing thing
Wouldn't mind a silver 09 Busa since this whole thing is in theory

Quote:
Originally Posted by jlewis_02 View Post
Just buy my old Fz1 head and have it ported almost the same power improvements for alot cheaper.

It would be cool to see someone do what your looking at tho.
Not really cheaper...all the professional head porters are about $1000 or more, then the several weeks of downtime while it's being done. Having ALL of it done would be the ultimate.
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Old 09-01-2010, 09:29 PM   #19
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Man porting is high now.

If you got the head I have sitting out in the shed you would have minimal down time.
Make me an offer if you want to go that route.
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Old 09-01-2010, 09:33 PM   #20
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10-4, I'll keep you posted.
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