IELASITUNED .21 GT RALLY ENGINES

ITD.21-5CL GT RALLY 2016

 

TECH SPECS:

DISPLACEMENT: 3.49 cc
SLEEVE 5 PORTS LONG STROKE
CRANCSHAFT 14mm TURBO - TUNED
NEW CONROD ITD
NEW COOLING HEAD - ITD 5 GT RALLY
FRONT BEARING - STEEL
REAR BEARING - STEEL / CERAMIC
WEIGHT: 367 g
Bore x stroke: 16,26x16,80 mm


R.P.M. (max power) 40.300 RPM (5 PORTS)

IFMAR RULES

ITD.21-5 GT SPEC. ENGINE - MODIFIED (CERAMIC REAR BEARING) ifmar rules
ITD.21-5 GT ON. ENGINE - STEEL BEARING (ifmar rules)

ITD. 21-7 GT SPEC. ENGINE - MODIFIED (CERAMIC REAR BEARING)
ITD. 21-7 GT ENGINE- STEEL BEARING

ITD. 21-9 GT ENGINE - STEEL BEARING
ITD. 21-9 GT SPEC. ENGINE - MODIFIED (CERAMIC REAR BEARING)

 

The NEW ITD CONROD is made from a superlight alluminium which has been checked ultrasonic. The specific form of the conrod creates little turbulence inside the engine while running.

Each piston is coupled with the sleeve to get the best compression and longevity. This operation is made by hand, one by one and checked by a specific precise measurement tool.

Carburettor:
The three tuning needles gives a better idle and improves the ability of the engine to return to low rpm after throttling.

(EFRA 2015) 3 Chamber polished tuned pipe with mounting ring for 3,5cc On-road engines. (EFRA/IFMAR legal). A more progessive tuned pipe with lower fuel consumption.


The new ball bearing reduces the inertia of the rotating masses and increases the engine's scavenging. You can see both the ball bearing and the manufacturing process result in the picture above. These novelties give an increased throttle response and a higer top speed.

cand-cons-1a8on
rally-1
5GT
GT7-9

ITD.21-7GT GT RALLY
ITD.21-9GT GT RALLY

TECH SPECS:

DISPLACEMENT: 3.49 cc
SLEEVE 7 & 9 PORTS LONG STROKE
CRANCSHAFT 14mm TURBO - TUNED
NEW CONROD ITD
NEW COOLING HEAD - IELASI TUNED 7GT
NEW COOLING HEAD - IELASI TUNED 9GT
NEW UNDERHEAD WITH O-RING
NEW REAR COVER FOR CRANKCASE
FRONT BEARING - STEEL
REAR BEARING - STEEL / CERAMIC SPEC.
WEIGHT: 367 g

R.P.M. (max power) 40.000 RPM (7 PORTS)
R.P.M. (max power) 41.600 RPM (9 PORTS)
 

9CL-7CL

picture coming soon ...

 .21-9 GT

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by DANIELE IELASI  - Copyright © 2015 
P. IVA - VAT IT08173800965
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made-in-italy

IELASI TUNED is made in Italy by NOVAROSSI

The Brand is Designed and developed
by Daniele Ielasi; 
modified, selected and prepared by hand.

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