C
Has anyone ever had one of the long rods blow up
Last edited by a moderator:
Long rod motor issues??
- Thread starter chrism28
- Start date
O
They are stout, come with a warranty backed up by the best service in the business. I don't think the rod angle was ever the issue but the simple fact it is built to Dan's standards is probably what makes them live.
Putting one together with a long rod crank as we speak. I did a lot of things differently then most people would... didn't just bolt an 858 cylinder onto a long rod bottom end so it might not be a valid representation for most people. Expect to have it running in a couple of days and hopefully on the dyno shortly after.
Neil
Neil
That would be me, have had it up and running for a couple of weeks, pulls strong but need better mapping and clutching for my area. Little mileage so far, no snow atm.
LR pulled very strong with PAR ultimate combo before i put the 858kit on.
Wanna share what you did to yours fast_xc?
John R.
LR pulled very strong with PAR ultimate combo before i put the 858kit on.
Wanna share what you did to yours fast_xc?
John R.
I have a question so did you use a different piston or thicker spacer or what had to be done to make it work
I used the rev1 kit without the shim, so i just used the same spacer as i got with my crank from Dan, and set the squish to stock spec.
R keeps us updated on this please, very interested in seeing if it can work. Also would like to know what elevations you are running and any clutching/mapping and fuel solutions you come up with.
Seems we may derailing the OP thread, 5oo miles on my LR and not a problem sorry.
l
Seems we may derailing the OP thread, 5oo miles on my LR and not a problem sorry.
l
[/QUOTE]
Wanna share what you did to yours fast_xc?
John R.[/QUOTE]
858 Rev 1 Pistons, Long Rod Crank, 2 base gaskets, Custom cut domes on SLP head to accommodate the dome height, custom port job to achieve desired port timing and flow. Custom programmed ECU (cfi 4 motor). This added some cost, but with the benefit of maintaining very good secondary compression and reducing the side loading on the skirts substantially as the wrist pin will be 3mm further into the bore than any other combination. Should have it fired up this week, but there is no riding in my area right now due to warm weather/rain. Hope to dyno it at DTR early next week.
Neil
Wanna share what you did to yours fast_xc?
John R.[/QUOTE]
858 Rev 1 Pistons, Long Rod Crank, 2 base gaskets, Custom cut domes on SLP head to accommodate the dome height, custom port job to achieve desired port timing and flow. Custom programmed ECU (cfi 4 motor). This added some cost, but with the benefit of maintaining very good secondary compression and reducing the side loading on the skirts substantially as the wrist pin will be 3mm further into the bore than any other combination. Should have it fired up this week, but there is no riding in my area right now due to warm weather/rain. Hope to dyno it at DTR early next week.
Neil
Can you share how and where you had custom tuned ecu? Sounds like a nice build. Neil I rremember meeting u at pikes peak hillclimb years ago, you sure know how to mod a sled. Are you building this motor for the iqr that you had or something new? My LRTM is still sitting on my bench, been to busy with work and we already lost all our snow.
Constant evolution of the iqr until the new chassis comes.out. I had Carls.cycles put their 860 program into it and will fine tune from there with a pcv. That tune should.eliminate any of the runability issues that all is of the stock cfi-4 tunes had.
C
How long are you guys taken it easy on the long rod before ridding it hard?
Standard break in.
Almost 600 miles on my indy specialty ltrm3
Runs like a champ.
Almost 600 miles on my indy specialty ltrm3
Runs like a champ.
250miles on my Indy Spec. LR and working great! Wish i could report back with more miles buts that's all i have had time for so far this year.
C
What you mean by standard break in he told me 3 tanks of talking in easy and not ridding balls out
Everybody has a different opinion on what a proper break-in is.
I Varyed throttle without sustained wide-open for the first tank.
I try to be anal about my warm-ups.
The second tank about halfway through I reverted back to riding it like its stolen.
I Varyed throttle without sustained wide-open for the first tank.
I try to be anal about my warm-ups.
The second tank about halfway through I reverted back to riding it like its stolen.
C
I have went through 2 motors in a month both motors rod bearings on long rod motors dan told me to do 3 tanks on my next one both the motors that blew I did the tank break in
Interesting for sure.
I'd be looking closely at my oil pump/lines.
Hope this one does better.
Seems odd that a rod bearing would fail from premature thrashing.
Maybe i've just had good luck with my motor rebuilds?
Dan has sure seen alot of motors apart for various reasons tho.
I'd be looking closely at my oil pump/lines.
Hope this one does better.
Seems odd that a rod bearing would fail from premature thrashing.
Maybe i've just had good luck with my motor rebuilds?
Dan has sure seen alot of motors apart for various reasons tho.
C
It's odd to me to oil pump was good on the stock motor and just wanted to better it so I put a long rod in it motor made it 100 miles and gernaded was useing a qt and 8 oz of oil per tank
Similar threads
