neal1980

Hi,

After reading through some posts it seems theres no clear limit what these will take. People change them for the thicker walled 200 block but why??

How can the block get damaged?

I remember collins doing a 480bhp 3dr in ff or pf and it lasted years.

What bhp are you running on your 205 block?

Regards


Neal

rscozzysie

my cossie has just gone for a rebuild at carwise uk.and they said a 205
block will run 400hp no prob's.don't know how true this tho.

neal1980

just be interested if its possible to have a close 500bhp or so on the 205block....

Mr S1

iTrader: (2)

200 block is thicker walled, similar to an RS500 but not quite, so will take more punishment and has more metal to hold it all together. As for what a 205 will take - bring on the tuners.....

c9sse

best person to ask is brom,i think he had 500bhp with a 205 block.

TiB

iTrader: (1)

I think its more a case of what torque will it take,,



i will be able to let you know if one can take around 500 ftlb hopefully at central day in april,,


whatch this space

JamesH

iTrader: (21)

Ask the propper people (no disrespect to anyone who's posted) and you will get the propper answers

twitchyrear

running 396bhp on my 205block,just wary of upping boost any more purley due to worries over spliting the block,but had 9000 trouble free miles so far

Tony Ryan

Ive raced 400bhp cosworth for years , one engine did over 40 races on a wire rung 205 block and a T34 . However , i fitted a T4 to a 205 blocked engine earlier this year and killed it in 15 mins during qualifying at Silverstone , qualified 3rd of 38 cars and the fucker split on the in lap meant i didn't race !! I will never use an over stresses component agin , its simply not worth it .

marco polo

iTrader: (1)

Hi

theres a lad on here called deano and he had about 480/500+bhp using a 205 block he never had a problem they are not as weak as peeps make out



cheers marco

JamesH

iTrader: (21)

The blocks are cast iron, cast iron gets stronger the older it is

So would you rather have a 20 year old 205 block or a brand new 200 block?

marco polo

iTrader: (1)

well to be honest i would rather have a 200 block

Ginge !

202 block

Martin-Hadland

iTrader: (2)

question is ......is it worth the risk using a 205 block on a high spec engine when 200 blocks are not too expensive?

JamesH

iTrader: (21)

Fairplay Marco guess I need this now

Ginge !

martin what about the heat treatment over 15 years though, would that not help the engine

JamesH

iTrader: (21)

martin-reyland


I meant the average 350-400, not an engine like yours

Anonymous

...the early 200 blocks are weaker than the 205's by all account!!!...Use only the lastest 200 small turbo block if you want the lastest and strongest evolution.

But its like asking the impossible half will say bollocks the rest will big it up and this is from TUNERS...so the true answer to this qustion is TRY IT!!!Shouldnt have to be like that but its the way it is as no 1 tuner will ever agree with each other!!!

marco polo

iTrader: (1)

Smidy

I use a YBP 200 block in my car , i suppose like Martin said is it worth the risk

i would defo use a 205 block up to 380 bhp tho

Marco

JamesH

iTrader: (21)

Marco


Does anyone know the propepr max amount a 205 block has ever taken?

david

Totally agree with what Martin has said about the risk factor but also if Lee (Tib) is happy to run one in his car knowing how much punishment he gives it and also a lot of others do the same then the old 205 block must still be doing something very right so what do you do ? Hard one to call really

Only time I personally know of a 205 block failing is on the saff in my sig, Andy's car. the original block ended up with 6 cracks all around the bolt areas and had to be binned. Car was only running about 260bhp if that at the time but the block was of unknown age, milage etc and he had done about 18 or so track days with it since buying the car. Since been replaced with another 205 block, car is running around 300-320 bhp not that much I know but its solely used for trackdays and gets abused no end has done about the same number again without any problems at all so with this and seeing plenty of other cars I will be keeping my 205 block in my own track car

Different for everyone though I suppose

marco polo

iTrader: (1)

David

the blocks are not scrap even if they crack around the bolt areas

all you would have to do to get around this if you wanted to use the block again is get the block long studed

david

Marco 2 of the cracks ran right down the outside of the block, could have been saveable as you said but at forty quid for another 205 then it aint really worth it mate

His new block is studded but not long studs, seems to be coping very well though

We aint going for big BHP at the end of the day, just durability really.

TiB

iTrader: (1)

David,

i'm not using one in my car,,,

its my bro's car and we had this conversation ourselves and said "right, lets try it and see"



the engine is together and the uprated parts are being fitted over winter hopefully,

the aim is a 400bhp/400ftlb engine with a 100bhp/ftlb nos as the engine has not been built to take high rpm's but we're gonna give it one hell of alot of abuse just to see how long it lasts doing 11.** qtrs???



"PROJECT WRONGUN" is born lol


http://www.carportdevelopments.co.uk for updates in the new year

Ian M

marco, you cant long stud 205 blocks.

simonc

My 205 block was rebuilt & has a 1mm overbore. Paul Hills live mapped it on greens & t34 about 21psi, he told me not to go any further power wise as it is on a 1mm overbore & could cause probs with the block.

Simon.