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Question "Eron's" bike?

i was checking out the SJBMW website and they show a bunch of dyno charts for a number of R1100S bikes. The highest HP was registered by a bike identified as "Erons". Just exactly what did Eron have in his motor because he was cranking out 96HP at the rear wheel when stock was somewhere around 80. "Eron's" bike had the most HP of all the hop-up combos listed, and by a large margin. Anybody know what he was running?
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Old 01-15-2007, 02:51 PM
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It's well documented here on the list over a bunch of threads.
He might chime in here. He'd done quite a bit.
Compression, porting, reangled ports, exhaust, custom mapping (PCIII) etc etc. I was lucky enough to ride it, and it was a good deal nicer than mine. Hopefully, Eron will chime in and maybe be able to help a bit. But with enough digging, all the info is already around here somewhere. Good luck. I was his Dyno 98 at the rear on a day when 4 other Ss dynos about 86. 12HP is darn nice.
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Old 01-15-2007, 03:32 PM
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12HP is darn nice.
.
Most definitely. And there is no better rider here that can fully show it off than Eron. But realistically, if someone had to pay to get that kinda performance outta there bike it would be rediculously expensive for a crummy 12 hp. Eron would prolly be about the only guy who could take advantage of that cost/reward ratio.
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Old 01-15-2007, 05:17 PM
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I believe SJBMW did most/all of the work, and it included long rods if I'm not mistaken. You could try and PM Eron Flory or call Chris at SJBMW. Some mods are a lot more cost effective than others.
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Old 01-15-2007, 07:15 PM
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Eron can correct me if I'm wrong, but I believe his R1100S is the San Jose BMW built bike that was featured in either Motorcyclist or Cycle World a few years back. I'll try to dig up the artical on Wednesday.
Old 01-15-2007, 08:19 PM
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It was featured, but Eron did the vast majority, if not all, of the work. Not one of those buy-it-from-someone-else deals.
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Old 01-15-2007, 08:31 PM
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Quote:
Originally posted by roger albert
It was featured, but Eron did the vast majority, if not all, of the work. Not one of those buy-it-from-someone-else deals.
SJBMW did the full intake and Remus exhaust system, ported the heads with big valves, and installed a cam and high-compression pistons prior to the dyno chart and magazine article. After that, Eron adapted and installed the Power Commander to work on the R1100S.
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Old 01-17-2007, 10:17 AM
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Here is a link to what I did and the dyno results on my 04 BCR

Dyno run

Philip
"It's a great bike but I can make it better".

04 R1100S BCR # 195
03 R1100S BCR #44 R.I.P. new home with 'onekiwi'
Adjustable cam sprockets
Milled heads .025
Larger Valves +2mm intake & Exhaust
Ported and polished heads (just a little)
SJBMW Exhaust Accelerator Kit (modified)
Laser Exhaust
InDuct
SJ PowerFilter
Laser 2 spark Chip
K's 3.5 bar regulator
Ohlins
Sargant Seat
Throttle bodies matched to rubber mounts matched to heads
Throttle bodies venture steps smoothed out.
Exhaust pipe welds ground down
Aux Fuel Tank (6.8 gallons total)
Old 01-17-2007, 01:35 PM
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Quote:
Originally posted by NoCalRider
Eron can correct me if I'm wrong, but I believe his R1100S is the San Jose BMW built bike that was featured in either Motorcyclist or Cycle World a few years back. I'll try to dig up the artical on Wednesday.
It was Cycle World. Reading about Eron's bike is what made me want an R1100S after years of being a vintage bike/cafe racer guy.
Cheers,
Lance
Old 01-17-2007, 01:55 PM
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The Long Rod conversion combined with 12.5 to 1 compression is what did the trick. Increasing the rod length ratio is very effective.
Old 01-17-2007, 02:21 PM
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I thought Chris at SJBMW mentioned before there were long rods in Eron's bike, but today he said it didn't have them. Somebody's memory is faulty, probably mine.
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Old 01-17-2007, 03:37 PM
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It does have them in the bike unless they have recently taken them out. The new R12S conversions will not be far behind......as will combustion chamber area treatments, and modified ring design. Eron also mentioned the long rod conversion in some of the first post he made concerning the bike. Chris was working on a LR kit for the R11S bikes.........but it never came to fruitation I suspose.
Old 01-17-2007, 03:57 PM
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are the rods in question a BMW part# or they carillo or bill miller rods or somesuch?
I assume that different pistons with relocated wristpin holes are required.

Some pretty substantial claims are made for ceramic-coating the piston crowns, combustion chamber and valve faces.

there's a local place that does all rhe racecars around here and the prices seem pretty reasonable for what you get.

another thing to contemplate whilst navel-gazing.

personally, I never felt the need for a rod longer than the one that came OEM, but longer's supposed to be better
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Old 01-17-2007, 04:02 PM
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Hi everyone, sorry it took a while to respond, I've been very busy lately. I've tried a lot of different configurations since I purchased the bike in May 1999, I'll list two of them for you here.

For the Cycle World article:
12:1 pistons
ported heads with larger valves from SJBMW
cams
Remus exhaust
SJBMW intake and power filter
Vanderlinde chip

Now:
12:1 pistons with long rods (Carillo)
ported heads with larger valves from SJBMW
dual plug conversion
Remus exhaust
SJBMW intake and power filter
USB PC3

SJBMW installed the heads for the CW article, but I did all the work and tuning since that article. The fact that I have done all the work since the article is no reflection on SJBMWs capabilities, just that I like to and can do the work myself when I have the time.
Old 01-20-2007, 10:31 AM
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Eron: Was most done at the same time? Or in stages?
What would you say is best bang for buck?

In the NOW list, you dont have Cams listed anymore, did you remove them? Or just forgot to list?
Also, PM sent..
Matt
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Old 01-20-2007, 10:58 AM
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Quote:
Originally posted by VetteRacer
Eron: Was most done at the same time? Or in stages?
What would you say is best bang for buck?

In the NOW list, you dont have Cams listed anymore, did you remove them? Or just forgot to list?
Also, PM sent..
Matt
I put the stock cams back in because the valve seats were not lasting very long with the cam I had originally, a Web cam for a R1100RS. It ran great but I had to replace the valve seats and valve keepers after about 5 track days... There may be some better cams out there now but I haven't felt the need for them since it is mainly a street bike.

As far as the best bang for the buck I would have to say the lighter wheels. They helped the suspensions action, the handling and I can feel the difference in acceleration since they take less power to spin up. For the kind of riding I like to do good shocks would be next. As far as engine only modifications probably an intake and the SJBMW power filter. To take full advantage of any engine modifications though you need either a chip designed for the particular set-up or a PC3 and some dyno time.
Old 01-20-2007, 08:33 PM
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Quote:
Originally posted by VetteRacer
Eron: Was most done at the same time? Or in stages?
What would you say is best bang for buck?

In the NOW list, you dont have Cams listed anymore, did you remove them? Or just forgot to list?
Also, PM sent..
Matt
Sorry I missed your original question in my last post...I did it in several stages.
Old 01-20-2007, 08:34 PM
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HPC coatings (www.hpcoatings.com) regularly does combustion chambers, valve faces, exhaust ports, and piston tops. I'm having all the above done to a KTM head now, however I'm doing it for heat management, not for the hp gain (although there may be some of that, too).
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Old 01-21-2007, 04:05 AM
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Eron,

What did you use to coat your valve covers black? I like the contasr and have been planning to do this myself.

Thanks,

Matty
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Old 01-21-2007, 07:52 PM
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Quote:
Originally posted by bitingmosaurus
Eron,

What did you use to coat your valve covers black? I like the contasr and have been planning to do this myself.

Thanks,

Matty
Spray paint...I think it was PJ1 "Fast Black"

Steve Carlton,
Your PM box is full.
Old 01-22-2007, 05:22 AM
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