What tools are needed for trenching the cases for a +4 crank? Is this a highly precise job that needs CNC or lathe type equipment, or will patience and a die grinder work? What area of the cases needs to be worked on?
+4mm crank-what does trenching involve?
- Thread starter doc_speeder
- Start date
It's a pretty precise job and involved cutting a channel in your case.
The case is where your primary compression comes from.
In other words you only want to remove the least amount of material necessary to fit the crank in.
You are gonna have to send the cases out.
This is the biggest reason you don't see many 265cc Blasters running around.
It's a PITA.
The case is where your primary compression comes from.
In other words you only want to remove the least amount of material necessary to fit the crank in.
You are gonna have to send the cases out.
This is the biggest reason you don't see many 265cc Blasters running around.
It's a PITA.
That pretty much sums it up.
Say you had a few spare case's and the time..... maybe...
Not sure on Blasters.
Banshee's run $150 to $190.
I would think Blastys would be cheaper cause theres only one channel to be cut.
These guys do it for $100
Blaster Performance
Banshee's run $150 to $190.
I would think Blastys would be cheaper cause theres only one channel to be cut.
These guys do it for $100
Blaster Performance
i charge 100$ for blaster case trenching.
you can trench them a few different ways,you can either bore them or throw them up on a lathe and cut them,those are the most practical ways to do the job.I throw them up on my lathe,i made a jig that centers them up instantly,so a set of cases usually takes me 20-30min
you can trench them a few different ways,you can either bore them or throw them up on a lathe and cut them,those are the most practical ways to do the job.I throw them up on my lathe,i made a jig that centers them up instantly,so a set of cases usually takes me 20-30min
what kind of performance gains are there between 3 and the 4mm....im doing the 3 for sure but may upgrade to the 4 if the gains are gonna be worth the extra couple hundy....sorry dont mean to take over tthe thread either
I don't have an answer.
I'm guessing only a few HP.
With the extra $100 it costs for the trenching it's not going to be a good return for your investment lol
I guess it comes down to how far your willing to go- oh and the braggin rights of having a +4 in your sig is nice
I'm guessing only a few HP.
With the extra $100 it costs for the trenching it's not going to be a good return for your investment lol
I guess it comes down to how far your willing to go- oh and the braggin rights of having a +4 in your sig is nice
I agree a Blaster motor can use alot more then it comes with,
on the other hand I wish I had less stroke.
75mm's hurts when it come to making rpms.
ahhh gotcha....hmmm
exactly what i needed to hear, prolly just go with the 3mm alot less of a headake for the few extra hp that the 4mm will give
exactly what i needed to hear, prolly just go with the 3mm alot less of a headake for the few extra hp that the 4mm will give
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