WHAT DO YOU THINK?
The CRB welcomes member comments, particularly from those directly involved in Formula Ford, on the following topic.
The CRB has received a proposal from Honda Performance Development (HPD) to include the Honda Fit 1.5 liter engine in the Formula Ford class. The proposal includes a general presentation of the concept, which is summarized below, and the specific FF rules changes that would be necessary. HPD has also submitted engine dynamometer graphs comparing a restricted Fit 1.5 liter engine and a current "National level" Kent FF engine. The restricted Fit engine produces slightly less horsepower than the Kent engine with a nearly identically shaped power curve. (The testing was done on the same dynamometer on the same day by a well known FF engine builder.) The Fit engine has been installed in a DB-1 chassis and has undergone over 200 miles of testing. HPD will present the car at Road America during the 40th Anniversary Formula Ford races, July 24-26. If member comment is favorable, the complete rules changes will be presented in a future FasTrack.
The CRB does not view this proposal to be in any way exclusive of similar future proposals for Formula Ford engines from other sources. Although the proposal includes an installation kit for the DB-1 and HPD may decide to produce kits for other chassis, use of the kit would not be required. The use of certain HPD parts would be required, but the base Fit engine could be acquired through other sources. Participants would be able to continue to use the Kent engine indefinitely. The rules for regional Club Formula Ford (and similar classes) would not be affected by this proposal unless regions chose to include it.
A Proposal for Incorporating the Honda Fit 1.5 Liter Engine in Formula Ford
Purpose: To phase in a new engine in the Formula Ford class that would substantially reduce the operating cost and extend the life of the class with a flow of new modern engines and replacement parts.
HPD’s plan is to enhance a nationally competitive formula with parity across multiple engine models with an easily manageable rules plan for SCCA. This proposal is a "turn key" engine solution with all parts (intake through to exhaust) being a mandated single source kit sold exclusively through HPD. This professionally designed "turn key" approach along with our established manufacturing supply chain reinforces our commitment to engine reliability, durability and a low operating cost.
The Honda Fit with the L15A7 engine is in the beginning of what is typically a six year production life cycle and has sales estimates of over 50,000 units per year. Long-term parts availability will be secure because Federal law requires manufacturers to supply replacement parts for a minimum of ten years after cessation of production.
This plan would bring a new, modern and reliable engine that requires minimal maintenance labor and cost, with an expected minimum 5,000 mile service range between rebuilds. It would have minimal impact for car owners by utilizing a chassisfriendly conversion that is a bolt-in design with components supplied in kit form and not requiring irreversible changes such as welding. Class involvement would be increased by greatly reducing engine maintenance and tuning. It could be of interest to car owners that have parked their cars due to current high operating costs and could make Formula Ford a cost effective "starter class" again.
Selected features of the proposal
No engine modifications, only standard rebuilds using stock parts allowed.
Stock Honda Fit flywheel and clutch.
HPD oil pan and dry sump lubrication system, available in kit form from HPD.
An HPD manufactured exhaust manifold is required. Headers, collectors and primary pipes are eliminated; cylinder head design incorporates a single exhaust outlet flange. Only exhaust pipes after the manifold need to be added.
An HPD supplied ECU and wiring loom is required. The ECU is sealed and maps can not be changed.
Fuel injectors are stock Honda Fit production items and may not be modified.
An HPD supplied Intake manifold, intake restrictor plate and throttle body is required.
Parts Kits and approximate costs
Part # 06200-F21S-A00 KIT $12,000
Complete kit for DB-1, which includes the following kits.
Part # 10000-F21S-A00 ENGINE ASSY $ 2,500
The base engine
Part # 06015-F21S-A00 KIT $ 5,050
Engine conversion kit
Part # 06020-F21S-A00 KIT $ 4,450
Chassis conversion kit