Who makes the 98 ci kit, and besides the extra cubes, what are the advantages over the 95 kit?
On a 95 kit is it better to use stock jugs bored out, or aftermarket jugs? Would there be any HP gain by using aftermarket jugs? (stiffer cylinder walls)
What is the best bang for the buck cubic inch upgrade? I have a friend looking to upgrade his RoadGlide Twin cam that is basically stock now.
Jeff
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'05 FXSTI
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You will get excellent technical advice shortly.That being said in a perfect world or Beverly Hills or Scottsdale,you upgrade at 1 time:cam,heads,ignition,exhaust.If he doesnt have the bread to do it right[perfect world],advise him to ride alittle longer till he does.Then contact HD wrench or MegaHDman or TC.DONT spend 15K and then get cheap on us[kidding],good luck,Bob
Its a 97" kit technically. Axtell and Millenium both make 97" cylinders. If your going to do a 95" cylinder upgrade, then bore out your stock 88" cylinders making sure torque plates are used.
THe 97" kits have the advantage of being all aluminum with a nikasil lining, so they dissapate heat quicker lowering engine temps due to lack of an iron sleeve and less overall friction. Combine that with an extra 2.5" cubes and the advantage goes to the 97" kit for performance.
In another thread there was reference made to the fact that there's a significant cost advantage with the 98". If you're buying cylinders & pistons in both cases, where does the cost difference come in?
In another thread there was reference made to the fact that there's a significant cost advantage with the 98". If you're buying cylinders & pistons in both cases, where does the cost difference come in?
Thanks,
Cost advantage to the 98"??? Not sure what you mean by "cost advantage", the 98" kit is going to be more expensive than boring out your 88" jugs and buying speerate pistons,rings and gaskets. And I dont think there is going to be an appreciable difference in dollar spent per hp gained either. The 97" kit is going to cost a few hundred bucks more than doing a traditional 95" conversion. But IMO the cost difference is worth it.
The 97" kit is going to cost a few hundred bucks more than doing a traditional 95" conversion. But IMO the cost difference is worth it.
Why?
As I look at parts prices, it appears that the 97" kit from Revolution is about $400'ish more than the SE kit. Labor would be the same. It's about a 3% increase in displacement. Do you get that much bang for the buck?
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.boB
'06 FXDI
95", High compression, 204's, SEII slip ons, SERT
And a bunch of other cool stuff
The 97" kit is going to cost a few hundred bucks more than doing a traditional 95" conversion. But IMO the cost difference is worth it.
Why?
As I look at parts prices, it appears that the 97" kit from Revolution is about $400'ish more than the SE kit. Labor would be the same. It's about a 3% increase in displacement. Do you get that much bang for the buck?
Displacement is the name of the game. You would probably pick up about 5 foot pounds of torque and 5ish hp numbers from the larger bore just by itself. But the bigger picture here is the QUALITY of the cylinders and the kit and what their made of. The 97" kit comes with 1 piece aluminum cylinders with a nikasil plating. Since there is no iron liner heat is dissapated much quicker and overall engine temps are lowered significantly. Expansion rates are also more uniform which allows you to run a forged piston with tighter tolerances, which is a good thing. The cylinders themselves are also a big increase in quality. They are much sturdier and tend to hold their shape much better over time which gives a better ring seal long term and less oil blow by.
If I was going to do a traidtional 95" kit, I wouldnt even waste a penny on "Screamin Eagle" cylinders. Best to have your old 88" jugs bored to 95" for a straighter rounder cylinder.
95 vs 98 ci?
