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Old 30-05-2007, 10:36 AM
  #41  
JonnyBravo
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Anyone know the correct measurements please ?
Old 30-05-2007, 02:52 PM
  #42  
Jim Green
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138.68 mm is the minimum depth (According to the workshop manual).

I have heard of heads which are below the recomended limit being used without any problems, but it would be work chatting with one of the engine builders before you do it.......
Old 30-05-2007, 03:32 PM
  #43  
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I have no knowledge of yb block repairs but some of you have mentioned welding.

One thing i do know is that welding cast iron is very tricky to do properly.

Especially on something the size of an engine block which will act as a large heat soak.
Old 30-05-2007, 06:38 PM
  #44  
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Well if that is what the workshop manual says then mine is way below that

Anyone else on here know how far you can actually take it ?
Old 30-05-2007, 06:42 PM
  #45  
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I know Tim Finch said he had run them in the 137 bracket with valve cutouts in the pistons.
Old 30-05-2007, 06:48 PM
  #46  
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It was running valve cut outs

Now my net is back up and working I'll post some more pics

The minute I walk away from this pc though I know I'm going to lose my connection
Old 30-05-2007, 06:55 PM
  #47  
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Apparantly there is a tech word "squish" that is the problem with having them skimmed to far, way beyond me m8.

Steve.
Old 30-05-2007, 07:09 PM
  #48  
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It does seem to me, that the cossie-nutter was well and truly had by whichever tuner built the engine.

I'm thinking cossie-nutter is obviously not the type of person who looks like they're into cars?

They did seem to have you over a barrel mate
Old 30-05-2007, 07:20 PM
  #49  
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He is into his cars mate but a oil change and spark plugs is as far as he ever ventured with mechanical work.

Shame the engine is actually so old now or I would of posted through said tuners window but even back then I feel there would of been a excuse for the block and god knows how they could of answered for the damage to the head.

Shit luck for my mate as he spent a fucking lot of money with them, not exactly great for me either though, I'm quite sure the pistons will be ok and hopefully the crank
Old 30-05-2007, 07:23 PM
  #50  
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Originally Posted by Rab
It does seem to me, that the cossie-nutter was well and truly had by whichever tuner built the engine.

I'm thinking cossie-nutter is obviously not the type of person who looks like they're into cars?

They did seem to have you over a barrel mate
I am into my cars buddy but this was my first ever Rs Cosworth so i let the people that "know" deal with it! They see me coming and bent me right over!

Im not to clever on how to build engines etc... but im ok with anyhing else like swapping parts n' stuff!
Old 30-05-2007, 07:44 PM
  #51  
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You seem to forget to tell people that your top speed run was down the A1 from peterborough to huntingdon which is about 20 miles not good holding your foot to the floor for that long then you also forget to tell people that you are far to good to run a engine in before you act a clown giving it the big up in a car park and then when you smash it up you go and buy a 4+4 cosworth then try to donut that and manage to spap a cam in have 2 SIDES TO EVERY STORY
Old 30-05-2007, 07:50 PM
  #52  
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Originally Posted by ellicoss
You seem to forget to tell people that your top speed run was down the A1 from peterborough to huntingdon which is about 20 miles not good holding your foot to the floor for that long then you also forget to tell people that you are far to good to run a engine in before you act a clown giving it the big up in a car park and then when you smash it up you go and buy a 4+4 cosworth then try to donut that and manage to spap a cam in have 2 SIDES TO EVERY STORY
Yeah alright mate! ROFLMFAO!!!!!
Old 30-05-2007, 07:55 PM
  #53  
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Originally Posted by cossie-nutter
Originally Posted by ellicoss
You seem to forget to tell people that your top speed run was down the A1 from peterborough to huntingdon which is about 20 miles not good holding your foot to the floor for that long then you also forget to tell people that you are far to good to run a engine in before you act a clown giving it the big up in a car park and then when you smash it up you go and buy a 4+4 cosworth then try to donut that and manage to spap a cam in have 2 SIDES TO EVERY STORY
Yeah alright mate! ROFLMFAO!!!!!
1st off i did hold my foot in as hard as i could get it by hititng the rev limiter in 5th that was a stupid mistake i know and we all learn byour mistakes

All my cars WAS RUN IN right before "Acting the clown as you put it"

My 4x4 cossie was already going to have a rebuild as was pissing oil a gooden and was fecked and had the wrong cams in so im told!

Not that any of this has anything to do with you or this post i never know!

Oh and of course i bet you have never done anything wrong or stupid in your life!
Old 30-05-2007, 07:56 PM
  #54  
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Look mate i dont need to talk shit on here put your storys up not a problem but PLEASE tell poeple both sides of the story theres no need for the 2nd head or the cracks in the block that is bad on the tuners behalf but your driving and lack of care is also to blame
Old 30-05-2007, 08:09 PM
  #55  
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sounds like the sort of service i got from Ace Performance
Old 30-05-2007, 08:19 PM
  #56  
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Originally Posted by ellicoss
Look mate i dont need to talk shit on here put your storys up not a problem but PLEASE tell poeple both sides of the story theres no need for the 2nd head or the cracks in the block that is bad on the tuners behalf but your driving and lack of care is also to blame
And again i dont see what my driving has anything to do with it!

I did say about the top speed run hitting the limiter in 5th and it went bang after the 3rd time of doing it! as i was stupid that i openly admit!

Ive always run my cars in propley as dont really want to go back for another build etc... as costs ŁŁŁŁ

And as for both sides of the story i feel i have done that!
Old 30-05-2007, 08:25 PM
  #57  
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Originally Posted by ellicoss
Look mate i dont need to talk shit on here put your storys up not a problem but PLEASE tell poeple both sides of the story theres no need for the 2nd head or the cracks in the block that is bad on the tuners behalf but your driving and lack of care is also to blame

Hold on one second mate

I totally see where you are coming from besides Mels top speed run he probably done less stunts in that car than 90 % of people on Pf

The head was fitted less than 1k before he crashed it, when he crashed it he wasn't being a arse as I happened to be there.

For the reason that the engine had covered very few miles since the rebuild was why I had it from him.

Its totally out of order that you point the blame at his driving when that is clearly not to blame, he got done over, half because he doesn't have a clue whats what with a cosworth and the other he was waving a fair bit of cash about.
Old 30-05-2007, 08:49 PM
  #58  
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lesson for this thread is dont mess about trying to repair fucked engines.
Old 30-05-2007, 09:14 PM
  #59  
mechanic28
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why do so many people think the 200 block is so much better then the 205 block when in truth the 205 block can hold just as much power as the much over rated 200 block IMO
Old 30-05-2007, 09:22 PM
  #60  
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mechanic28

i cannot recall many 500 plus engines with 205 blocks.
Old 30-05-2007, 09:37 PM
  #61  
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Agreed Dave but is that to do with everyone slating the 205 block, i am sure the must be some big power 205 engines out there,broms comes first to mind, the reports on the 200 blocks cracking is all to common these days i think to disregard the other options.
Whatever happend to the 202 blocks that were in circulation a few years back.

Steve.
Old 30-05-2007, 09:45 PM
  #62  
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Originally Posted by rapidcossie
lesson for this thread is dont mess about trying to repair fucked engines.
Fair point, BUT it should be perfect

I dont think 200 blocks have a habit of failing tbh, I think its incorrectly built engines that are a cause.

I already know of 2 very good reasons why they do that.

One thing is that there is no way this is going to halt my project, its only money and as mentioned its a lesson learnt.
Old 30-05-2007, 09:52 PM
  #63  
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Originally Posted by JonnyBravo


I measured the head last night and it was 138.2 if I took the correct measurement.

Is that scrap too ?

my head measures 137mm and is running 500+ bhp i am running a thicker head gasket though
so i wouldnt scrap the head as for the block i wouldnt take the risk you will only have to replace it sooner or later
Old 30-05-2007, 09:56 PM
  #64  
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Originally Posted by dave cos4x4
mechanic28

i cannot recall many 500 plus engines with 205 blocks.
IMO a 205 block would be able to deal with it just as well as the 200 block
Old 30-05-2007, 10:04 PM
  #65  
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mechanic28

well you spend all your money on a big bhp 205 block and then advise us lot how well it holds together.

if the 205 block was good enough then why did Fords use a 200 type block for the rs500 cars.

Old 30-05-2007, 10:08 PM
  #66  
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i thought the RS500 had there own blocks?i still think a 205 block will hold that power so there!!
Old 30-05-2007, 10:09 PM
  #67  
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Surely a thicker casted 200 block HAS to be better than a 205 block, a overbored 200 block however is no better than a 205 iirc

Swings and roundabouts with what can handle what tbh, if the bloke that bolts it together is paying more attention to something else rather than the job in hand then anything could fail.
Old 30-05-2007, 10:10 PM
  #68  
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Originally Posted by mechanic28
i thought the RS500 had there own blocks?i still think a 205 block will hold that power so there!!
they did have their own blocks and thats what the '200' blocks were based on.

ok Phil.
Old 30-05-2007, 10:11 PM
  #69  
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JonnyBravo

it has got to be surely.
Old 30-05-2007, 10:23 PM
  #70  
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I would of thougth so Dave.

You dont see tuners building big spec engines from 205 blocks.

Infact I would like to see how many race cars running 500hp are using 205 blocks, not many if not none

I am 90% sure 200 blocks are better as long as they aren't bored to a certain amount
Old 30-05-2007, 10:25 PM
  #71  
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i'm 99% there better.

so.....what are you doing over your engine.
Old 30-05-2007, 10:33 PM
  #72  
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Well I have already sourced another block, already long studded too.

Its not new but it is bored correctly to suit my pistons so its a start.

I do need to get the engine over to my mate though for him to inspect it but he has said over the phone that he wouldn't advise using it.

If the head will go again then I'll send that off to Karl I think as Nick Waples who I would use "might" take a while and I expect karl can turn it round a bit quicker, I'll have to call him when I get a spare min though.

Hopefully should get the engine done over the next few months by which time the shell will be painted and I'll be ....urmm skint lol


Anyone fancy a buggered 5k old 200 block, I'll admit its probably not as good as a 205 block
Old 30-05-2007, 10:36 PM
  #73  
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nope not having it think the 205 block is alot stronger then people give it credit for
Old 30-05-2007, 10:36 PM
  #74  
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tbh, you don't want to spend a lot of money on a head thats only good for one skim..if that!

you will need the best possible one to use to make it worthwhile.
Old 30-05-2007, 10:45 PM
  #75  
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My head has already been worked so I dont know much more its going to need to make it work right with the T38.

It does sound like my head is on its limit, maybe one more skim left which typically it needs to get those marks out

Got any spare heads Dave ?
Old 30-05-2007, 10:49 PM
  #76  
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JonnyBravo

i have a good few but i'm keeping them,sorry.
Old 30-05-2007, 10:55 PM
  #77  
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Rollocks

Far to feaful of using ebay for one, might just have to bite the bullet and buy a proper one
Old 30-05-2007, 10:58 PM
  #78  
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proper money though,that could be better spent elsewhere.
Old 30-05-2007, 10:59 PM
  #79  
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yep






















Aeroquip
Old 30-05-2007, 11:01 PM
  #80  
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lol.

you selling some now.


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