Lotus fuel injectors: Elise, Exige, Evora and the Toyota secret

Injector reference for the Lotus lineup: 2ZZ-GE Elise and Exige, supercharged Evora and Exige V6, the Esprit four cylinder and V8 twin turbo, and the detail your dealer will not lead with: the US market cars run ordinary Denso injectors on Toyota engines. Compiled by the injector cleaning department at Boost Lab, Inc.

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  • Elise / Exige / Evora / Esprit
  • Toyota 2ZZ-GE + 2GR-FE
  • Denso Hardware
  • 440cc Supercharged Spec
  • Authorized ID + FIC Dealer

The Toyota secret

Every US market Elise and Exige from 2005 to 2011 runs the Toyota 2ZZ-GE, and the Evora, Exige V6, and Emira run the supercharged Toyota 2GR-FE. The injectors are Denso units with standard Toyota connectors, the exact hardware family that crosses our bench every week from Celicas and Camrys. Supercharged Exige S and 2-Eleven cars run 440 cc Denso injectors from the factory. The badge is boutique, the dealer network is boutique, but the injector service is not: cleaning and flow matching a Lotus set is Toyota work with better documentation habits, and it costs Toyota money, not Lotus money.

The service pattern is the collector pattern. These are second or third cars that sit through the off season on E10 pump gas, and a 2ZZ that lived at 8,000 rpm all summer then parked for six months is a varnish study. Cold start stumble, uneven idle, and lift point hesitation on the cam changeover get blamed on everything exotic before anyone flow tests four ordinary Denso injectors.

The Esprit is the classic side of the page: port injected four cylinder turbos through the S4 era and the twin turbo V8 through 2004, rare cars with a thin specialist network and injector sets that have rarely if ever been out of the engine. These respond to ultrasonic service like any port injector of their era, and on a car this scarce, documented cleaning of the originals beats hunting replacements.

Showing all 7 applications
Application Years Engine OEM / Ref PN Notes
Elise S1 (Euro market) 1996-01 Rover K-series Bench data on request Port EFI
Elise / Exige NA 2005-11 US Toyota 2ZZ-GE Bench data on request Denso, Toyota connector, yellow
Exige S / 240 / Cup / 2-Eleven 2007-12 2ZZ-GE supercharged OEM 440 cc Denso Replace isolator donuts with service
Evora / Exige V6 / Emira 2010 on Toyota 2GR-FE supercharged Bench data on request Denso, six per set
Esprit four cylinder turbo S4 era to 1996 907 / 910 family Bench data on request Port EFI, rare originals worth preserving
Esprit V8 twin turbo 1996-04 Type 918 V8 Bench data on request Eight per set
Upgrade paths run through the Toyota aftermarket: flow matched sets of four for the 2ZZ in common sizes, including 850 cc Denso units (ref 1001-87F90A, 12.2 ohm, factory Toyota connector) and 1000 cc options for forced induction builds.
2ZZ upgrade sets All 2ZZ Lotus Sets of four Denso 850 cc / 1000 cc refs Stock connector, flow matched

OEM part numbers shown where verified; flow figures published after bench verification

Pay Toyota prices, not Lotus prices: the injectors in your Elise are Denso units shared with the Toyota family, and our full Toyota reference covers the same hardware in detail. Cleaning, new filter baskets and o-rings, and a documented flow report for a set of four is routine work on our bench, whatever badge is on the engine cover.

What we see on the bench

Seasonal 2ZZ sets

Elise and Exige injectors varnished from winter storage, cleaned and matched back to within a couple percent with before and after documentation. The lift point feels right again.

Supercharged spec verification

Exige S and Evora sets flow tested to confirm the boosted engine actually has the fuel headroom the tune assumes, before the tune assumes wrong.

Esprit preservation

Four cylinder and V8 Esprit sets that have never been serviced, brought back with documentation. On cars this rare, the original injectors are worth saving.

Frequently asked questions

Are Lotus injectors really just Toyota parts?

For US market cars, yes. The 2005-11 Elise and Exige run the Toyota 2ZZ-GE and the Evora family runs the supercharged 2GR-FE, all with Denso injectors on standard Toyota connectors. Supercharged Exige S cars use a 440 cc Denso unit. It is the same hardware family we service constantly from Toyota applications.

Why does my Elise stumble on cold start after sitting?

Storage varnish in the injectors is the most common cause. These cars sit for long stretches on ethanol blend fuel, and deposits form in injectors that barely accumulate miles. A flow test of the set of four identifies it in numbers, and cleaning typically restores factory flow.

Can you service Esprit injectors?

Yes. The port injected four cylinder turbos and the V8 twin turbo use conventional electronic injectors of their era, which respond well to ultrasonic cleaning and resealing. Given how scarce Esprit parts are, a documented service of the original set is usually the smartest path.

What upgrade injectors fit a boosted 2ZZ build?

The Toyota aftermarket covers it: flow matched Denso based sets of four in 850 cc and 1000 cc ratings drop into the stock rail with the factory connector. As an authorized Injector Dynamics and Fuel Injector Clinic dealer we can also spec and flow verify a set for your power goal.

More injector references

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