| Author | Message | ||
     Beachbuell |
So I think I'm going to blow my "stimulus" check on "stimulating" my Tuber. So far here is my list of performance upgrades. Keep in mind that I want to stick with all HD Screamin Eagle parts........... SE XL High Compression Forged Pistons. SE XL Bolt in Performance Cams. SE XL Pro Tappets/Lifters. SE XL Performance Ignition Module. SE XL Performance Ignition Coil. | ||
| Beachbuell |
Any other ideas or recommendations? | ||
| Jayvee |
Just wondering why you want to limit yourself to Screaming Eagle stuff. It really is made for Harley, not Buell. Seems like this 'artificially' constrains your choices. None of these are on my list. I don't have experience with this, just speculating, but for about the same money, I would have Stage 1 headwork done, by some reputable company. I guess I like the M2 powerband, I doubt if I ever change the cams, even when I do all that other stuff. I won't bother with new pistons, until the 1250cc Nikasil kit, and even then I'd try to stick with stock pushrods/lifters if possible. I already tried the Buell Race Ignition, but went with a Dyna S Single Fire/Coil kit. Love the change in sound and idle of single fire. If you really want to change the nature of the engine, I'd suggest just do the cams, and then see how you like it. That other stuff, seems like just spending money because you got it. Better to save it and do some more research. The cams will get your attention. | ||
| Djkaplan |
"I already tried the Buell Race Ignition, but went with a Dyna S Single Fire/Coil kit. Love the change in sound and idle of single fire." I sure would like to hear more about that. Maybe another thread? I agree with you on the M2 powerband. I love the midrange mountain of torque and use it quite effectively exiting corners in the twisties... but I want more! Not higher in the rev range though... just more of it in the same spot. When I do my engine, it's going to be done with mid-range specific mods. (Message edited by djkaplan on May 29, 2008) | ||
| Beachbuell |
The Thunderstorm heads are great flowing heads and do not need to be worked on at all. Cams are a must! Doing cams and not lifters is like having peanut butter and jelly with no bread. Forged pistons are great for raised compression and are much stronger than cast. Ignition module and coil for a greater RPM range IF I want or need it. I prefer factory SE parts because I get them at cost and they are specific for the motorcycle. | ||
| Cyclonemduece |
while the heads are good the way they are there is good gains in a port job, it will complement your cams nicely. | ||
| Bad_karma |
Do the heads, if you are doing cylinders or pistons might just as well do the 1250. You will also need a header with the 2.5" collector and can. What are you trying to accomplish with this build? Joe | ||
| V74 |
will the SE pistons be the wrong shape for TS cylinder heads ? have you considered using the SE roller rockers ? | ||
| Djkaplan |
You will also need a header with the 2.5" collector and can. The stock header has a 2.5" collector, should be OK there. | ||
| Jayvee |
Can anybody explain the benefit of lifter replacement? (In the context of this sort of build-up?) Roller rockers I can sort of imagine how they might be an improvement, but "better" lifters? What would be the gain? | ||
| Djkaplan |
It's always a good idea to replace lifters when you replace camshafts. Not absolutely necessary (for roller lifters in this context), but a good idea for a proper build up. | ||
| Beachbuell |
Moving parts that contact other moving parts or hard parts develop wear patterns. The patterns are unique to each of the parts. Installing new cams (no wear pattern) with used lifters (wear pattern from previous cams) isn't good practice. If you ever remove your cams and plan on re-installing them it is a good idea to mark the lifter placement and rotation. As each cam to lifter wear pattern is different. | ||
| Jc000 |
Just wondering why you want to limit yourself to Screaming Eagle stuff. It really is made for Harley, not Buell. Seems like this 'artificially' constrains your choices. None of these are on my list. I had heard that the SE heads were actually BETTER than the XB heads for our tubers. I can't remember the rationale (not would I likely understand it anyway!). Not to be stupid but what would be the issue with the SE stuff? We basically have a Sporty motor, what would be the issue? | ||
| Bad_karma |
Daniel For my education when did M2s go to 2.5". Thanks for keeping me straight. That is one less thing he will need to buy. Why not the XB style late model sportster head? Joe | ||
| Beachbuell |
I'm trying to keep my M2 as close to stock as possible. I'm approaching 40K miles on her and she needs to be freshened up a bit (at least I think so). I prefer to keep her looking as stock as possible and I would rather use factory performance parts in the "refreshening" phase. The Tubers are essentially raw Sportster motors packed into a Buell frame with Erik Buell engineering. | ||
| Benm2 |
Not sure those pistons will work with the T-storm heads, you might want to double-check. The T-storm head has a 15-degree bathtub chamber, high compression pistons for the head need to account for that. If you do pistons, you'll spend a fair amount of cash: you'll need a top-end gasket kit & new rings (if the piston kit doesn't include them). The SE cams alone on an M2 seem to shift the power upward, check the KV section for that sort of work, it was a common mod. Combined with other headwork though you could get the "best of both worlds"; M2 low end torque plus some high end power. European M2's came with SE cams stock, IIRC. Unless you really want to mess with things, I'd leave the head bolts neatly torqued in place. I think there's a way to install the new cams without breaking the head gasket seal. There's power to be had once the heads come off, but it gets more expensive. If you're going to do it anyway, I'd second the vote for some stage-1 type headwork, but I'd get matched pistons. | ||
| Beachbuell |
Going with SE bolt in cams, stock (new) lifters, SE coil and I'm thinking of having the cylinders bored out some with corresponding pistons of course. | ||
| Eboos |
"For my education when did M2s go to 2.5"." 2000 and later M2's got a 2.5" collector. 99 and earlier had a smaller one, I don't know the size. | ||
| Djkaplan |
I think the black painted header found only on 99 M2's (X1 and S3 models got the cool stainless header) were 2.5" also. I didn't know until just recently that Euro-market last-gen tubers had stainless headers with 2.0" collectors. | ||
| Beachbuell |
Well, after kicking around some different ideas I've finally settled on what I'm going to do with the motor........... Bored Cylinders .010 over. Forged Pistons. Port and Polished Heads. SE bolt in cams. New lifters. Carb. tweaking. Parts to be ordered Monday! | ||
| Bad_karma |
Thanks Eric good information to know. Joe | ||
| Beachbuell |
Parts are in. The upgrades start soon. Pics to come. | ||
| Jayvee |
Hey did you do a Dyno of "before" ? | ||
| Beachbuell |
Should have her all buttoned up tomorrow some time.  | ||
| Beachbuell |
Here is what I ended up doing while she was all torn apart......... *Updated the plastic elbow in the carb with a new brass fitting. Also cleaned and re-jetted the carb., she need some tweaking. *Installed XB turn signals. *Updated the cylinder studs with the newer versions. *Cylinders were in great shape, so I freshened up the crosshatch. *Installed new rings on the stock pistons. *Had the heads sent out for a valve job and some porting & polishing. *Installed SE bolt in performance cams. *Installed a new set of stock hydraulic lifters. *Updated the exhaust studs on the heads with new ones. *Of course I updated all the gaskets with the newer metal ones. *And I also installed my pig tail leads for the battery tender. | ||
| Beachbuell |
I picked up an (obsolete) oil cooler today for her! Should have that on for the weekend! | ||
| Beachbuell |
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| Beachbuell |
DONE! Finished her up today after work. She took her first breath (again) and I took her for a maiden voyage! The mods and improvements I've done are unreal! |
