| Author | Message | ||
     Buelliedan |
Nobody has an opinion on the Hurricane vs. Thunderstorm pistons?? Somebody here must have compared the two?? | ||
| Aaron |
Jim: 3-9/16 bore ... uses Total Seal rings, not sure of the construction but they're not gapless and not chrome. Dan: Hurricane pistons are forged (better heat dissipation and durability) and have a little more dome, which gives a little more compression, around half a point. Not sure on the weight. Give Brian a call, I'm sure he'd be happy to tell you more, and he'll shoot straight with you. If you're considering a top-end job, there's lots of ways to go on this stuff. All-aluminum cyls, get your factory cyls professionally reconditioned, go with cast iron, stock pistons, forged pistons, etc ... all have trade-offs, pros and cons, some approaches are better suited for certain applications than others. A good seal is important, as is getting your squish right. Go with what makes sense to you. AW | ||
| Buelliedan |
Aaron, Actually all I really want to do is stick on a set of Nallin Stage II heads and the new D&D complete exhaust system without having to do any more work. I would hope this could get me close to my goal of 100rwp and still keep the cost close to $1200. I guess I should do a compression check on the S3 before I make any final decisions but the beast is really running great and I don't want to be disappointed. | ||
| Jeffb |
Hey Jose, Was that S&S poke directed at me? It's ok if it was. I agree with you. There are just too many other projects in the works. Jeff | ||
| Jmartz |
I did not mean to throw a dart Jeff. I am just patiently waiting. | ||
| Jmartz |
Beulidan: The Nallin pistons offer increased compression to 10.5 versus the claimed 10 to 1 of the stock T-storm pistons. This should be good fora slight increase in performance especialy with a hotter cams which tend to weaken the lower end. | ||
| Mikej |
"Patiently" being a relative term subject to seasonal &/or weather-dictated emotions. I'm still curious what was behind door #3.  (That #3 being a fictious number I've assigned to a random door at an undisclosed location in a nondescript building in the middle of seemingly nowhere.) | ||
| Blastin |
Just remember to take a left, just before you reach nowhere or you'll never find seemingly nowhear. I almost missed the left hander and would have had a tough time trying to find seemingly nowhere from nowhere. I also must say though the roads going to seemingly nowhere are quite nice. | ||
| Rocketman |
Would that be the Talking Heads road Rocket in England | ||
| Vr1203 |
New configuration on the turbo.Watch and be amazed! The newer Buells with the rear exhaust pipe running inside the frame will be very interested, maybe I'll get some pics posted tomorrow. | ||
| Chrism |
Hi all, new to the group. I've been reading this web site for a couple of years now. Question, has anyone compared the '96 S1 heads with big valves vs the Thunderstorm heads? Right now I have S 1 heads with port work and racing valve job but stock sized valves. Torque falls off hard after 5k. | ||
| Jmartz |
Chrism: Larger valves can be installed into Lightning heads but Thunderstorms will accept valves marginally larger. Also if you are sticking with 1200 cc's it will be more difficult to increase compression with Lightning heads since chamber specific pistons are not available. I shaved my Lightning heads .020 and did a valve job on them. The bike went from 77 HP to 83. With ported Thunderstorms, Hurricane pistons and SE .536 cam the motor produced ca. 95 HP (retarded spark). Once the Buell performance manifold and CV44 were installed it topped 100. | ||
| Buellzebub |
anyone compare the hurricane or t-storm slugs to the forged ones available from wiseco? http://www.wiseco.com/pdfs/hd_01.pdf | ||
| Schemky |
Buellzebub, Yes, I did before I elected to go with the Hurricanes. The Wiesco/Buell piston does not appear to have the proper piston crown contour, in my opinion, to properly and efficiently mate with the squish band in the Thunderstorm head. The Nallin's appear to have done their homework on this piston design. I intend to set the squish clearance around .045 - .050" on my motor by milling the tops of my stock cylinders. I will be cognizant of the compression ratio before I begin cutting. Based on the quality of the Hurricane pistons I received, I feel this is the best choice. | ||
| Vr1203 |
Hi, a posted a shot of the turbo on the "pics" message line. | ||
| Chrism |
Jmasrtz, when you were still running the Lightning heads what size exhaust collector and pipe werere you using? I did.025 to my heads and the aforementioned port work and valejob and first ran a 2" collector and a Supertrapp. 76 hp and 80 ftlbs. Then I took out the baffle and ran just the open megapfone and got 84lbs and 77hp. But at 5k I had 10 more hp and lbfts. After writing Aaron he suggested the 2.5" collecor and appropriate plumbing. Fell back to 80 lbfts but still carried it out further in the revs. Is it the valve sizes or could it be the 40mm carb that is the restricion. boxerkid@aol.com | ||
| Jmartz |
I was using the race header/can group. Your lower #'s are from none of your suggestions. Make sure your main jet is lean at 7000 rpm and optimize timing. That should do it. The stock header/V&H can will be able to give you the same top end. If you have a set of ported heads (I gather you do) you should at the very least produce 90 HP. Jose | ||
| Jimidan |
I have a set of blueprinted and ported Lightning heads that have the larger valves in them...the intake is 1.840" and the exhaust is 1.625". Compare this to the T-storms at 1.81 and 1.57. They were going to be used on one of my 88" bikes, but I went with the high priced STD heads instead. These heads have the same combustion chamber size and shape as the T-storms at 67cc, with a squish band. There was no problem with room in the chamber to install these larger valves. These babies flow (150 cfs), just not as much as the STD heads at 180 cfs. A set of Nallins stage one T-storms were measured at 130 cfs for comparison. I will be listing these heads in the Classifieds soon... | ||
| Johnsachs |
Buelliedan, Cast stock T-Storm pistons-O.K. Forged Wiseco Sportster/Buell 10.5:1 or JE,owned by Wiseco,are the strongest and need no additional work. The valve pockets need to be moved back(spread) on the stock T-Storm pistons if the heads are milled and o-size valves used.The Wiseco pistons,like the stock T-Storm pistons,have 10 degree domes. If you want to tighten up the quench,and gain back the c.c. lost to the installation of big valves,you'll have to mill and recut the angle in the heads. | ||
| Leveg |
snip | ||
| Leveg |
Builders of 3 13/16" engines - what did you do with the bolt between the cylinders? After boring the case, there was virtually nothing left of this bolt. My solution was to machine small flats on the cylinders. I then bought a high tensile ARP bolt, and machined it into a stud. The flats on the cylinders allowed me to leave a lot more material on the stud. The cross sectional area is probably about the same as the root diameter of the thread, so the stud is probably as strong as the original bolt before boring. Top picture shows the original bolt at top, and modified stud at bottom - sorry it's not clearer. Greg   | ||
| Ralph |
Leveg, I replaced the bolt with a stud before machining the larger holes. It was then left in place. Looks to me like you came up with a completly satisfactory way of going about it. bighairyralph | ||
| Schemky |
How to Get Mo' Power; Buy a much faster bike. I have recently purchased one of those Honda things. . . the 1100XX, on Ebay. Will pick it up the weekend of 12-15-01 in Florida. Never had a Honda. Plan to keep my trusty 99M2 and have lots of goodies to make it go faster, i.e. pistons, cams, head work, and nitrous. It will be interesting to swap between these two. I know the XX will not have the "grunt" of the M2, whereas the M2 won't have the "kick" of XX. Plan to dyno the modified M2 and will post some pics after I have both bikes in my shop. When your kids leave home, you'll be amazed at how much they were costing!!! | ||
| Jimidan |
Regarding the bolt in the V of a 3 13/16" bore, I installed a longer 5/16" bolt (grade 8) into the cases that extended through them about a 1/16" to the other side. I threaded the cam side case to accept this bolt, then installed it and had them do the bore job. They did cut the bolt down as shown in the photo above, but it wasn't in the threaded area but along the shank. This bolt should be plenty strong when those big cast iron cylinders are strapped down on them. The Axtell cylinders strengthen the whole engine, which is very good for a motor that was not designed to be a stressed member of the frame. I don't think the aluminum alloy cylinders come close to this overall ridgidity, and flex in the cases is a bad thing. | ||
| Joey |
Bumper sticker at dealership in Seaford, DE: "I'd rather push a Harley than ride a Honda." | ||
| Schemky |
Joey, Thanks for the encouragement. I intend to ride the Honda only at night. . . . with a really dark tinted facesheild. . . .sporting a fake beard. . . .not stopping anywhere except at Wal-Mart late, late at night for gas. Have you seen the people in Wal-Mart at 2:00 in the morning? Look a lot like me. . . . | ||
| Burnout |
2001 m2 force air cleaner vh slip on, go to cams next for more power | ||
| Rippin |
N-6 by Andrews. Had them in my '99 and am putting them in this weekend in my '01. I did not see any loss in low end with them, actually let me do rollons in 2nd where before I couldn't. Nice top end rush. I will dyno the results this time. Did not before. Wish I did. Also putting on ProHeader in conjunction w/cams. I currently have HSR42 w/Westtec ac and stIDS. Ryan | ||
| Jmartz |
Leveg: What's with those 1/4 inch thick fins? My AAC jugs while rougher than the factory ones, just loose their alignment at the front but do not thicken. Jose | ||
| Steveshakeshaft |
I'm interested in a "cams thread". I don't see a lot posted anywhere about experiences of the different options. Like, for example, I have been browsing around the cam options at Andrews Crane etc.. web sites. I have lightning cams in my '97 M2, but I don't know the cam timings and lift of the lightning cams, so looking for a cam set with a bit more duration and lift is a bit difficult, when I don't know where I'm starting from! And things like, what effect does fitting a more radical Cam set have on the "effective" compression ratio? Stuff like that. Would you go up from 10:1 to 10.5 or 11:1 or something to compensate for lost compression due to longer duration cams and stuff? Do you run into valve spring binding or valve to valve, valve to piston touching etc ?? An N9 appears to be a nice "hairy" Camshaft, but maybe it is too radical? Opinions and experiences anyone please? Steve http://ukbeg.com/ steve@ukbeg.com |
