difference bewteen evo I exhaust mani and Evo III

[FUNWHEELDRIVE]

Are the Evo I and evo III exhaust manifolds the same? My 2g has a crack, and would like to upgrade to a evo III. is the evo one an improvement to the 2g?

Thanks

 

[95blackGsTurbo]

An EVO III is an upgrade to an unported 2g. A ported 2g is going to be the same. However when you can pickup an FP Race Manifold for $185.00 you can't go wrong for the price and it is better than both.

 

[FUNWHEELDRIVE]

i was wondering the difference between the evo I mani and evo III. are they the same?

 

[debbie]

Heres a couple of threads that might help. I cant see anything about manifolds which leads me to think theres no difference
Mitsubishi Lancer Register
EVO 1
The Evolution 1 was introduced in 1992 to compete in the World Rally Championship. It used the 2.0 L turbocharged DOHC engine and 4WD drivetrain from the original Galant VR-4 in a Lancer chassis. It came with Mitsubishi's 4G63 engine producing 250 BHP and 228 ft/lb. For the Evo 1 the engine was given a larger capacity intercooler, a higher compression ratio, modified port configuration, new injectors, and lighter crankshaft, con rods and pistons, and was sold in GSR and RS models. The RS was a stripped-down club racing version that lacked power windows and seats, anti-lock brakes, a rear wiper, and had steel wheels to weigh approximately 70 kg less than the GSR, while the GSR came with all of the conveniences of a typical street car.

Evolution I's exterior was distinguished at the front by an aluminum engine bonnet with large air outlets, and open grille-integral front bumper extended 40mm forwards to house the uprated intercooler unit. At the rear, a large spoiler reduced lift by 18%

To match the heavier front end and the substantial increase in suspension inputs, the body underwent a major strengthening and stiffness optimization program resulting in a 20% increase in torsional stiffness over the base model. To alleviate the weight increase stemming from the extra reinforcement, the vibration-damping undercoat was totally eliminated.
The lancer has a 50 litre fuel capacity, including the spare tank along with all wheel drive which would become a trademark on all Evolution models.
5,000 of the first generation Evolutions were sold between 1992 and 1993.

EVO2
The Evolution II incorporated a number of modifications designed to boost its performance, handling stability in particular. Modifications to the engine included an increase in turbo boost pressure, reduced exhaust back pressure and increased valve lift.

These changes pushed engine output up to 260bhp, with torque remaining at 228 ft/lbs . An increase in the number of tarmac stages in WRC events meant improvements were called for in Evolution's handling. Modifications in Evolution II included: the use of larger tyres, the wheelbase was extended by moving the front wheel center 10mm forward, and the front and rear tracks widened 15mm and 10mm respectively to accommodate the fatter tires.

Optimisation of the front suspension following these changes included: the use of new lower control arms and longer struts; the front stabilizer was attached directly to the lower control arms to quicken steering response, and front camber was optimised. Together with a longer damper bump stroke and other detail improvements, these changes brought a marked improvement to Evolution II's handling performance, making for quicker response and raising its cornering limit, particularly on tarmac surfaces.

In the aerodynamics department, Evolution II gained an airdam under the front bumper, while the addition of a wicker increased the effectiveness of the reardeck spoiler. The use of OZ alloy road wheels, with their powerful rally image, and other styling touches also made Evolution II a more attractive machine.


EVO 3
The third-generation Evolution debuted in 1995, boasting another 10bhp increase in power output. The engine was tuned to run at higher speeds, pumping out 270bhp, with maximum torque unchanged at 228 ft/lbs.

Changes to the engine included: reduced back pressure throughout the exhaust system, the result of a fatter downpipe and lower pressure losses in the main muffler; a new turbocharger compressor;and had higher compression ratio than before.

The most significant improvements introduced in Evolution III were to its aerodynamics. With ever-increasing speeds over fast rally stages requiring even better aerodynamic performance, Evolution III's aero parts specification underwent a full redesign. New, more aggressive styling and a new nose molding improved the air supply to the radiator, intercooler and brakes. New side skirts and rear bumper moldings and a larger rear spoiler were added to reduce lift.

There were no major changes to body stiffness or the suspension in the new model. However, the addition of a second intercooler spray nozzle helped stabilize power and torque characteristics at high engine speeds. Without a doubt, Evolution III delivered the highest levels of refined performance in the series to date.

 

[JFZERO ECLIPSE]

An EVO III is an upgrade to an unported 2g. A ported 2g is going to be the same. However when you can pickup an FP Race Manifold for $185.00 you can't go wrong for the price and it is better than both.

Sorry to jump off topic,
Yeah an FP Race manifold is a really nice piece, but when people want/need to run a heat sheild they get stuck using the JM Fab one (which is a nice piece dont get me wrong...but I think it looks like shit....its too big and the brakets are weird I think)....whats wrong with oem style that bolts right to the manifold...

Back on topic, yes an evo III manifold is an upgrade to a 2g manifold....2g manifolds have a 6cm collector while the evo has a 7cm collector....

Also as a side note...IF the evo III manifold is made of the same material as the evo III turbo it boast a higher nickel content which helps resist cracking

 

[FUNWHEELDRIVE]

Yes i KNOW the evo III mani is an upgrade to the stock 2g mani. and i KNOW a ported 2g mani can flow the same as an evo III mani. i KNOW the FP mani can outflow both. none of these are my question, i have read the information above before i posted the question when i was searching for the answer but never found it. so i posted to ask the difference between the EVO III MANIFOLD AND THE EVO I MANIFOLD.

Anyone KNOW forsure if they are different or the same? someone is offering me an evo I mani, but i want to know if its an upgrade to the 2g mani. thats my only question.

Thanks

 

[JFZERO ECLIPSE]

Simple answer....Yes.

Again as stated above the evo manifold is 7 cm while 1g and 2g is 6cm....thats an upgrade....you need to read between the lines here...

 

[FUNWHEELDRIVE]

It just doesnt clearly state that there is a difference. There was engine improvments to the EVO 3 so maybe the improved the manifold.

 

[dsm-onster]

Sorry to jump off topic,
Yeah an FP Race manifold is a really nice piece, but when people want/need to run a heat sheild they get stuck using the JM Fab one (which is a nice piece dont get me wrong...but I think it looks like shit....its too big and the brakets are weird I think)....whats wrong with oem style that bolts right to the manifold...

Performance. The fp race manifold does better. . . . The fp manifold net .2 ET better in the 1/4mile on a common 16g setup per results posted here on this site actually.

 

[fwdmaster]

Honestly there the same as in gains,there only different because one has a bigger outlet,but once you port the 2g manifold to 7cm there identical, Just go with a FP manifold

 

[JFZERO ECLIPSE]

Performance. The fp race manifold does better. . . . The fp manifold net .2 ET better in the 1/4mile on a common 16g setup per results posted here on this site actually.

I do know this, but the fact remains I do like the fp manifold...but the mounting for anykind of heatsheild is a pita....If FP offered bungs on the manifold for stock heat sheild I would have bought one a long long time ago....I hate the look of JMFabs heat sheild over the fp mani its just way too bulky I think...

OEM heat sheild FTW!!!

 

[dsm-onster]

Honestly there the same as in gains,there only different because one has a bigger outlet,but once you port the 2g manifold to 7cm there identical, Just go with a FP manifold

The gain was over a ported 2g manifold. It's not about the outlet. It's also about the path the gases take from the head to the turbo. Theres alot more to a manifold tha simply the outlet.