CVO Technical > EVO
1992 FXR conversion to 96" kit - need advice
Free:
I have a 92 FXR and I want to boost performance. A long time ago i put Edelbrock heads on it and Macuni 42" carb and most recently V&H 2:1 (have not dynoed it). I want more power and torque.
i have been thinking about what to do and my mechanic has suggested doing a 96" conversion.
Here is what the mechanic says. I would love some feedback with those who may have done this. Questions to ask, views, pricing etc.
This is from the mechanic:
Hi Andrew!
Here are some prices for the 96" conversion.
Labor is 20 hrs. which includes removing the engine from the frame, tearing it down, sending the cases out for machining, reassembly with new crank and performance cam and heads, re installation back into the frame.
I would be willing to discount the labor for you, I just wanted to show a standard hour amount for this type of job.
The 96" kit from S&S is very complete. It comes with new flywheels, pistons, cylinders, cam, pushrods and carburetor. It also includes gaskets.
You have 2 choices for finish on the cylinders, "natural" and black.
If you do not want the S&S carb. we can arrange a credit or discount.
The cost of this kit is $2399.00.
I recommend we take a set of Harley Screamin Eagle heads and have them ported.
We will send the heads to the porter and create a part number based on cost of heads plus the porting so you aren't buying a set of heads at retail, then paying for the added cost of porting.
The total for ported new heads will be $1500.
The total for parts and labor is $5700 not including tax.
If you do not want the S&S carb, I will see if we can discount $500 off the kit.
I am willing to discount as much as 4 hours labor as well.
That would bring your total to apx. $4840.
Please let me know any thoughts or questions
RedFXR2:
I almost passed out. Action on the Evo board!!
Anyway, coincidentally, I have a friend who did nearly this very thing to his Evo some years ago and was disappointed with the results. He ended up with a motor that was hard to start (he installed 10.5/1 pistons), and difficult to keep in tune. I don't remember all the specifics, but for the same money you're talking about you can buy a complete S&S 96" (approx. $4500) that was purpose built for that displacement and get a better total package. This is what my friend said he should have done. Or if you have the budget and want to end up with a real race horse, for approx. $7500 you can get a complete TP 107". These would be complete, Evo design motors that would just bolt right into your frame. A shop owner here did the TP conversion to his 1994 FXLR. These are just the first two prices I could find for these motors on the web, you could shop for a deal. Then you can sell your current engine or parts to help pay for the cost of the new motor.
Anyway, with a complete S&S engine, you'd get S&S cases that were purpose built for that displacement. $4840 for the HD/S&S combo (installed) or $4500 for the complete S&S 96", but you'd still have to either do the swap yourself or pay a pro. For the $340 savings I'd have to figure the benefit of getting all new S&S, 96" designed parts and could I get it installed for $340? And again, you'd be left with some good HD Evo parts that you could sell on ebay, if nothing else, to help with the cost.
Hope this helps, or at least gives you another angle on the project. Done right, you'll have a really fun bike. Good luck.
Free:
Thanks so much, very helpful
hadn't thought about the 107 (damn, this site keeps costing me money!!!)
RedFXR2:
I had some time so I did some more surfing around on the vtwinforum site and found several references from some of the recognized pros questioning the ability of the standard HD Evo case to retain enough strength to last after machining for the 96 inch kit. They seem to offer the same suggestion--just go ahead and get a whole new larger bore motor. The largest overbore they recommend for a HD Evo is .030, only about 7 CI's. If you have a good relationship with your mechanic, you might ask him about this specifically. This is why I emphasize getting the total engine from S&S because those cases are designed for that bore from the outset--and for $340 less to boot.
Glad to have helped.
RedFXR2:
--- Quote ---hadn't thought about the 107
--- End quote ---
Since I brought up the TP 107, there's one more thing to think about.
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