Question

Answer

What are the new gear ratios?

First is 3.00 and Second is 1.94;  OEM is 3.36 and 2.05 respectively

Are gears straight cut or helical cut?

First gear is Straight cut; Second gear is Helical cut

Will the synchros be redesigned?

The OEM synchros are a quality design;  Challenges with upshifts and downshifts result from the steep ratio change and the task the synchros undertake to mate the gears to the same speed; The new ratios in the upgrade kit will address this phenomenon by easing gear transition

What is the input spline configuration?

Input spline is OEM Renault; no custom clutch work is required

Is the shaft diameter increased throughout?

Yes;  The shaft diameter is increased throughout including the fifth gear overhang

Is the shaft one-piece or two-piece?

The shaft is a one-piece component

What material is used?

High quality Flexor® steel alloy is used for the shaft and gears; Heat treated to a hard core strength

What about machining and parts exchange?

The kit is designed to be a direct fit with no machining of OEM components;  no parts exchange is required either, making the upgrade reversible to OEM specifications 

What do the larger bearings provide?

Essentially, more strength;  One is always trying to improve the weakest link

Is the upgrade available outside of the USA?

Yes;  The kit will be available worldwide

What else will I need to install the kit?

You will need a gearbox assembly kit which includes gaskets, seals, o-rings, roll pins etc.  Contact Jeff at JAE Parts for the required bits.

Who can perform the upgrade work?

The purchaser can select the installer of their choice, however a knowledgeable Esprit mechanic is recommended.  Contact Harry at Viking Motorsports (CA) or Ralph at RS Motorsports (NJ).

Who is making the upgrade kit?

The kit manufacturer is a premiere gearbox producer for IRL and NASCAR gearboxes; custom, high performance applications is their specialty

What about the price?

The upgrade kit is less expensive than the European options available today;  Holloway Performance is confident the upgrade design and materials are of superior quality

What gearboxes will this upgrade fit?

The upgrade fits the UN1 gearbox used in the Lotus Esprit which utilized a 52mm outer diameter rear taper roller bearing, from 1990 to 2004.  Please confirm before ordering.