time to pick brains

[roynx79]

right my 4 comes of the road on sunday and the 5 body conversion begins and engine out. my 4 engine runs perfect no knocks and is strong but i want to aim for 400bhp so my question is what is the best route currently have an apexi power fc, s204 turbo, 560cc injectors,4branch manifold, 3"down pipe and a 2.75" cat back zorst, ive heard so many different storys about the 4 block none good apart from my mates 4 who just has 6 internals @420bhp @1.6bar with no worrys , surggestions please all

 

[Phil74]

Issue is with the 4 crank and the bearings. get an E5-9 block and forge it or use E9 MR pistons and rods, a little head work (3 angle valve seats and a skim) if using the stock turbo. Maf/Stock Adapter and Air Filter. Get your ecu mapped/flashed.

 

[B6lee]

yep, scrap the block and get a later one

cheapest option os probably buy a 260 botom end or mr engine. mr engine has more agressive cams and is good for 400 bhp all day long

 

[Phil74]

yep, scrap the block and get a later one

cheapest option os probably buy a 260 botom end or mr engine. mr engine has more agressive cams and is good for 400 bhp all day long

+1 Agree but will cost your in he region of £1350-2000 for a complete engine or try to pick up an MR GT complete block but hard to find and expect to pay £500-800 for one block complete and then head work costing from £35-1000

MR GT cams are better cams and an E9 block has forged piston and rods as standard.

 

[Dirtmatt]

I have a head that maybe of use, came off an E8 and has had work done to it, stuck it up in the for sales section

John@evo breakers has a MR motor £1800..

as above the 4 motor is know for over wearign crank bearings.. something to do with the design.

 

[roynx79]

Think i might go the 5/6 bottom end on 9 rods and pistons and use my head as i know a mate who said he would help you no who you are

 

[B6lee]

an E9 block has forged piston and rods as standard.

since when ???
they are slightly thicker yea the same as 8MR and 260 as far as i was aware

 

[roynx79]

as long as i push 400-450 bhp ill be happy

 

[B6lee]

as long as i push 400-450 bhp ill be happy

400 yes but wouldnt want to go any more than that

there is a 260 engine for sale on mlr

 

[Phil74]

since when ???
they are slightly thicker yea the same as 8MR and 260 as far as i was aware

E9 always had forged pistons and rods from mitsubishi as standard and are capable for 500 BHP. prooved and tested using standard E9 Pistons and Rods. E9 rods are very similar to manley rods.

Awesome Evo 9 Pistons in Frankenstien 6 Bolt!! - DSM Forums

 

[Phil74]

as long as i push 400-450 bhp ill be happy

You will pay a lot for an E9 block complete or any E8 MR engine, or E9 complet engine. If you get a cheap block E5-8 with a crank cradle i can sort out with a crank, shell bearings, piston kit etc. If you only want 400-450 BHP and similar with torque you are best to get an MR engine or FQ complete as the cheapest option but your stock turbo wont give you 450 BHP, 400/400 you can achieve with a little work to the head.

If you can get an E5-8 block complete, do a little work to your head and get a remap you will get 400/400 from using your stock turbo and keep costs to minimum and within your budget. I can offer you a worked head to your budget or requirements on a part exchange basis.

 

[RsvRob]

since when ???
they are slightly thicker yea the same as 8MR and 260 as far as i was aware

+1 on this

when i removed them from my 9 block they weren't forged parts !!!

 

[Phil74]

For anyone who does not know this ask mitsubishi themselves and they are classed as a forged rod and piston from mitsubishi.

Mitsubishi Evo (03-) MR FQ-400 4dr Saloon Review | Autocar

 

[RsvRob]

I'm sorry but the whole article is about the rare fq 400...
Most of us are under the impression that the 400 does have a forged engine from factory hence the rarity. And now proven in this article.
But it doesn't say the 9 block has forged rods

 

[B6lee]

I'm sorry but the whole article is about the rare fq 400...
Most of us are under the impression that the 400 does have a forged engine from factory hence the rarity. And now proven in this article.
But it doesn't say the 9 block has forged rods

Yep, roger that

 

[Phil74]

Since the 2 of you think you know so much why dont you call your local mitsubishi dealer and ask them...

 

[fq-craigus]

Since the 2 of you think you know so much why dont you call your local mitsubishi dealer and ask them...

Because they can barely tell you what model Evo they have in stock (personal experience) let alone what is inside the engines

 

[GG205rob]

For anyone who does not know this ask mitsubishi themselves and they are classed as a forged rod and piston from mitsubishi.

Mitsubishi Evo (03-) MR FQ-400 4dr Saloon Review | Autocar

" To attain the required power and torque most of the engine’s key components have been replaced, except, interestingly, the crank. There’s a much bigger Garrett turbo, stronger forged pistons, forged conrods, a beefier cylinder head, an entirely new exhaust system, a bigger Motec ECU and a far more efficient fuel pump. Unsurprisingly, the clutch has also been heavily uprated and is effectively now a competition unit, although the gearbox and basic suspension set-up are unchanged from those of lesser models. "

The article you posted even says the 400 is the only model to have forged internals. Are you that bored that you need to argue with yourself?

 

[Craig.H]

I am chucking a forged 8 motor into my 4. Aiming for a reliable 400-450bhp. I seriously would not push any standard engine over 400bhp.

Yes some people do it and get away with it but you also get those who aren't so lucky!

Over 400bhp, rod job, Over 500bhp fully forge it seems to be the general rule.

As for standard 9 rods being forged, they are stronger but 100% not forged.

 

[B6lee]

Seems to be a pattern forming here