CV with a Thunderjet Kit

Hey all,

I got a question....I'm thinking about getting a Stage 1 Tuner Kit, to see if I pick up any more performance from my 02 Wide Glide.

The local Harley Dealer here has already installed a Thunderjet kit, so anyone know if I would pick up any performance or am I just wasting time?
My bike does have a VH 2 into 2 exhaust as well, with no other mods to the engine (yet)

Thats what I was afraid of, so I guess my next question is: with the thunderjet already installed, IF I install the stage one kit, will the performance improve?

My thinking is, with the thunderjet installed that should help the midrange, and the stage 1 help the overall performance....right?:witsend:

The two different kits are not compatible. Like chucktx I have tried the Thunderjet kit. I removed it and installed the CV Performance Kit. Easier to tune and probably 8 - 10 more miles per gallon. Along with the CV Performance kit I have installed a CV Performance V-Ductor. That gave me another couple of miles per gallon and a little better torque, even my wife noticed a difference in the performance of her bike with the V-ductor, Her bike has a CV Performance complete Carburetor and it rocks, she gets 55 plus miles per gallon with every tank full of fuel. I ‘ve had this same carb on three different bikes with just a little tweaking from bike to bike. 2 EVO’s and now a TC88. I don’t know if Ken still builds then or just sells the parts now.
V&H are good exhaust systems, that is what I run. Which one do you have?

I have the VH 2 into 2 exhaust on it......sorta like dasiy cutters just longer. They sound mean as ....!! Even with the baffles still in.
So when you removed the thunderjet kit....what did you use to plug the hole in the side of the housing?
Man, I hope I haven't ruined that carb!!!!!!!:angry:

I didn’t have a hole in the side of the Carburetor. Carburetors are pretty cheap on ebay if you need to start from scratch. I have several that I have tried different things with, CV Performance by far exceeds any of the other kits. Properly tuned you will get as good of performance as with any other intake system.
V& H are good pipes, you do not want to remove the baffles, they are required for you to get the most out of your exhaust system, besides I have never heard a quite set of V&H exhaust. They just get tinny sounding with out the baffle.

would you elaborate on daisy cutters,

This is the kit I've been talking about. I have a funny feeling everyone thinks I'm talking about the thunder jet slide kit, which of course, is different.

well, I feel stupid...I cant the pic to load.. :cussing:

but if you went to JP cycles and typed in thunderjet kit, you'll see it. You basically drill a hole in the side of the housing, and install a valve that taps into your main jet passage (if memory serves me correctly), then the main jet becomes what they call a intermediate jet, and the thunderjet becomes the main jet.

Yea, I see wht your talking about. Didn’t realize those things were called thunder jets. Never have used one of those. Does it really work?

In all honesty, It didn't pick up the way I thought it would....which some of my friends here have told me.....

Which leads me back to my first question....would a stage 1 kit work with this kit. I've emailed Ken about it...haven't gotten a reply yet...but I think you guys are right.....just try it. I'll be ordering some parts from him next week.
Chucktx, harleysLR......thanks for the help guys I appreicate it. I'll post the "test" results and let everyone know.

Richard

I hope not!!

Well, :cussing: I'll try pulling the kit off, and see if I can get the carb to respond.....then install the stage 1 kit.....it should work.

Re: CV with a Thunderjet Kit/ RESULTS!!!

Well, folks the results are in!!!
As most of you know I was going to go ahead and install a V-Ductor, and then pull the ThunderJet Kit off and install a Stage 1 kit.

Well.........I did all of the above EXCEPT..... remove the Thunderjet Kit. After carefully reading the instructions for the thunderjet, and talking with the guy who had installed it....I decided to leave it installed and try the Stage 1 kit.

I figured if it it didn't perform as expected.. I could isolate the ThunderJet itself...thus removing that fuel circut.

As I did remove the carb and tear it down I did find alot of "shadetree" stuff that had been done by the previous owner. With that stuff removed and Ken's kit installed. I took it for a test ride around the block.

HOLY CRAP!!!!!! What a difference!!! I hadn't even fine tune the bike yet, but already knew I had stumbled on a great kit. After speaking with Ken (via Email), I took it out yesterday for a short 30 mile trip.

I brought the bike back, backed the idle down just a touch, and left it alone.

I knew this morning would be a true test, in the cold mornings here, the bike would cough just a little, but enough to annoy me.

But this morning, not one cough, or burp.

Ken....you have got one hell of a product here. Thank you for your help and advice.

Thanks to everyone else as well, for your help!!!