IELASITUNED .21 ENGINES MODIFIED

RAPTOR .21ON 2018 - TOP MODIFIED ENGINE - DLC TREATED CRANCSHAFT AND R4/18 CONNECTING ROD, THIS ENGINE COMBINES HIGH PERFORMANCE WITH A SIGNIFICANTLZ IMPROVED RELIABILITY. THE RAPTOR WILL BE SOLD IN TWO VERSIONS, RAPTOR.21 ON AND RAPTOR.21ON/C

RAPTOR .21ON is the standard version with steel bearings and standard shaft
RAPTOR .21ON/C is tuned version with DLC shaft and swiss made ceramic rear bearing.

 

NITRO .21-9 WCE 2017 - MODIFIED TUNED
(CERAMIC BEARING - SPECIAL REAR COVER - NEW COOLING HEAD)

NITRO .21-9 2017 . (STEEL BEARINGS)

 

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.

 

 

ITD. 21-9 CL ENGINE 2016 - STEEL / CERAMIC BEARING - TUNED
ITD. 21-7 CL ENGINE 2016 - STEEL / CERAMIC BEARING - TUNED


ITD .21-9XL SPEC. ENGINE 2015 - MODIFIED - CERAMIC BEARING

doppia-reg-mito-on
cand-cons-1a8on

NITRO.21-9 WC US- LONG STROKE
NITRO.21-7 WC US
- LONG STROKE

TECH SPECS:

DISPLACEMENT: 3.49 cc
SLEEVE 7 & 9 PORTS LONG STROKE
CRANCSHAFT 14mm TURBO - TUNED
NEW CONROD ITD
NEW COOLING HEAD - IELASI TUNED 9CL
NEW COOLING HEAD - IELASI TUNED 7CL
NEW UNDERHEAD WITH O-RING
NEW REAR COVER FOR CRANKCASE
FRONT BEARING - STEEL
REAR BEARING - STEEL / CERAMIC SPEC.
WEIGHT: 335 g


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

P9020019-9cl

 

CL (Long stroke)= medium/high torque power and high top end power

XL (extralong stroke) = high torque power and medium/high top end power

ITD .21 SPORT 5 - BASIC LINE

TECH SPECS:

DISPLACEMENT: 3.49 cc
SLEEVE 5 PORTS
CRANCSHAFT 14mm TURBO
NEW CONROD ITD
NEW COOLING HEAD - IELASI TUNED SPORT 5
NEW UNDERHEAD (without O-ring)
FRONT BEARING - STEEL
REAR BEARING - STEEL
WEIGHT 336 g


R.P.M. (max power) 38.800 RPM (5PORT)

 

 

ITD. 21 SPORT 5

Sleeve:
The sleeve has 5 transfer ports to supply a linear power output and to keep fuel consumption low.

 

Crankshaft:
The crankshaft is manufactured with a larger bore intake to increase the mixture flow; and has a special shape to optimise gas-flows in the engine.

 

RAPTOR .21 ON/C
 

TECH SPECS:

DISPLACEMENT: 3.49 cc
SLEEVE
9 PORTS
PISTON EXTRA LIGHT - HANDTUNED
DLC CRANCSHAFT 14,5mm TURBO - TUNED
NEW CONROD ITD
NEW COOLING HEAD ITD
NEW UNDERHEAD WITH O-RING 16% / 25% Nitro
NEW REAR COVER FOR CRANKCASE - TUNED
FRONT BEARING - STEEL
REAR BEARING - CERAMIC SPEC.
WEIGHT: 337 g



R.P.M. (max power) 41.900 RPM (9 PORTS)

.21SPORT
raptor.21-on
raptor.21
nitro.21.scheda

RAPTOR .21ON 2018 - TOP MODIFIED ENGINE - DLC TREATED CRANCSHAFT AND R4/18 CONNECTING ROD, THIS ENGINE COMBINES HIGH PERFORMANCE WITH A SIGNIFICANTLY IMPROVED RELIABILITY. THE RAPTOR WILL BE SOLD IN TWO VERSIONS, RAPTOR.21 ON AND RAPTOR.21ON/C

RAPTOR .21ON is the standard version with steel bearings and standard shaft
RAPTOR .21ON/C is tuned version with DLC shaft and swiss made ceramic rear bearing.


RECOMMENDED EXHAUST

51010 Tuned Pipe (EFRA 2015)
3 chamber polished tuned pipe, more progressive with lower fuel consumption

41015 Manifold
Shorter
exhaust gives less acceleration, but an increased topspeed

41016 Manifold
Medium
exhaust is half way between short and long,
generally used as a starting setup

41017 Manifold
Longer
exhaust gives more acceleration, but reduced top speed

 

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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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