#Harley 88 engine specs upgrade#
#Harley 88 engine specs full#

DynatekвЂ™s very popular DYNA 2000 ignition was previously reviewed (see the article, Single-Fire Ignition) and is an excellent performance upgrade for Evo engines. Evo and some earlier models have Dual-fire ignitions and can really benefit from the single-fire upgrade. Aftermarket TC88 ignitions offer higher rev limits and altered advance curves but unless you plan on hitting 6200 RPM (you shouldnвЂ™t anyway!) then stock is just fine. Particularly with Twin Cam models, which already use a single fire ignition. I placed a вЂќ * вЂќ next to this last item because under certain circumstances you can go without this upgrade and still accomplish a Stage 1 upgrade. There are simple ways to do this yourself using devices like the Power Commander, which will be detailed in a future article. Granted your bike will still run, but the only way you are going to get the most out of your EFI bike is to have it remapped by a qualified shop. Since you have changed the way the engine breaths, those instructions may not supply the proper stable fuel mixture under all conditions. Fuel injected models use a preprogrammed map to instruct how much fuel is to be delivered. Various kits are available to recalibrate the carburetor including those offered by Dynojet, Yost, and the Stage 1 Carb KitВ offered here. This is a simple operation that is explained in detail on our site under Carb Jetting. On carbureted models this means rejetting. Your carburetor or EFI will need to be corrected to compensate for how differently the engine now breaths. Once your engine is breathing itвЂ™s going to need to do a better job at providing a stable fuel mixture. To read more on other exhaust systems check out the Harley Performance ExhaustВ page.

IвЂ™ve found the best deals on slip-on mufflers on Ebay that were sometimes less than HALF of what the item would cost new.

#Harley 88 engine specs full#

There you will find many models from people who are upgrading to full exhaust systems or another flavor of the month. If your budget is slim (join the club) then try buying used like on Ebay. My favorites are the ones from Khrome Werks and Python, but the others are just as good. Popular slip-on models include HD ScreaminвЂ™ Eagle II, Cycle Shack, Bubs, and Khrome Werks to name a few. These are easy to install, maintains a stock look, and adds plenty of performance. Many choose to keep their stock pipes and go with slip-on mufflers. As with the air cleaner this upgrade can be simple or extreme. These allow you to use your stock cover but the difference over stock is amazing.ДЇree breathing exhaust. If your plan is to keep the look of your current cover assembly go with ScreaminвЂ™ Eagle or Arlen Ness вЂњBig SuckerвЂќ assemblies. You donвЂ™t have to spend a fortune but pick something that fits your bike well. At minimum you need to let your engine breath by changing the stock air cleaner. Depending on your budget this ranges from changing the air cleaner to a K&N or other element, to installing higher end air cleaner assemblies like Forcewinders and Hyperchargers. This is the simplest upgrade to perform for most Harley owners. If you want you can take thisВ upgrade one step at a time however, I recommend going in the order listedВ above if not all at once.ДЇree breathing air cleaner. There is probably no greater beginning upgrade you can make than a StageВ One which is entirely a bolt-on procedure. With that said, a Stage 1 upgrade consists of the following: IвЂ™m going toВ base the term вЂњStage 1вЂі on what the motor company typically terms forВ this upgrade. Now depending on who you ask, a Stage 1 upgrade could be anything from an exhaust upgrade to a new carburetor. YouвЂ™ve probably heard terms such as StageВ 1, Stage 2, etc. Before dragging out the catalogs and bolting on every gizmo claiming to make your ride go faster letвЂ™s start with the basics of a Stage 1 upgrade.

Some people are looking for more вЂњget up and goвЂќ from their stock engines, while others are looking for higher dyno numbers.ДЇor those who have a stock or mildly modified engine the answer is to move up to the next вЂњstageвЂќвЂ¦ or a Stage 1 upgrade kit to be more exact. вЂњHow to get more powerвЂќ is one of the most frequently asked question received about improving a HarleyвЂ™s performance.