stud and nut kit im doing a engine for some one and he is worryed that there not up to the job 450bhp mike r told him it wants long studding do any one else use them

 

they have a rep for cracking blocks 6 long studs as said at this level

 

i have had an engine with an arp stud and nut running aprox 350 bhp, it was spot on .
However my new one has long studs, but people will tell you different things, some say standard head bolts will handle 500 some say it wont.
Personaly at 450 i would be long studding, and i aint a fan of only doing 6, as i would see a weak point on the outer studs. Just my oppinion long stud the lot and do it properly just the once .

 

tell him to get his money out and buy my 200 block which already to go

 

told him that allready m8

 

My new engine has 6 long studs.

 

my engine has to but im going for 550bhp shorly if std bolts will do 450 so should arp kit

 

I hope this doesn't seem an odd question, why only 6 long studs?

I presume a yb has 10 headbolts?

 

put 6 proper studs in there, for the extra price its better than paying for a new block aswell next time if it crack them i guess

 

It's my RS500 block Dave is talking about here.I am worried about cracking the block as it has happened to me once b4 with the RS500 I owned.As Jim states above for the extra peice of mind I would rather get the 6 long studs done.
CheeRS.Lee.

 

but why just 6?

 

i know some one whos got a complete long studded bottom end low comp .5 oversize etc also a genuine 500 block on std bores for sale....
iv always long studded after 400 bhp and hate arp kits..

cheers danny

 

my new blocks got 10 long studs but its 620bhp, should be pretty good
my old block is 6 stud if anyones interested with h section rods and wrc spec spray jets

 

EXACTLY what I have on my RS500 block........ bit over kill for Stg1 power....lol

 

Lee don't go faffing around with your block get another one fella .

Don't forget you have a buyer for your 500 block

 

quite agree mate go 200 block then you no u only have to do the job once.

 

i take it your nikasil liners now then???my block in my escort is a cgi nikasil linered 10 stud block grp a water pump etc..seems to be a few 500 blocks about at the mo..

cheers danny

 

ya mate just building it up at mo, thats why i said about my old block its out my 3 door ele so everyone nos its a good strong engine and ran mint never used any oil if i wasnt going more bhp would never of changed it as its been spot on

 

as above

 

what comes with block??what size bores etc??what else you got for sale?what turbo you going to run and whos going to dyno it?? pm if you want

cheers danny

 

the walls in the front studs arent as thick as the centre stud walls hence you only stud the centre 6,you then can clamp the head down with a thicker stud and nut kit and use std head bolts on front and rear studs...
you can go 10 long studs when using nikasil liners and using a grp a water pump to clear the front studs...
not the best description i know but im sure someone can explain better than me but thats the basics

cheers danny

 

Thanks for taking the time to answer

 

waste of money faced head and block, wrc gasket and standard headbolts. ive run t4 at 2.2 bar with no issues.

 

you were lucky or seriously never drove it hard!!!every engine i ever left std head bolts on either blew head gaskets every five minutes or cracked the block
After 1992 and three or four fucked engines i did it properly and long studded..never looked back,build it properly once the first time and it will last


cheers danny

 

Would anyone on here recommend an ARP head stud kit for a 400bhp Zetec? (also going for a main stud kit)

I know some people say that the standard ones will cope, but I was going for a belt and braces approach.

 

well il tell you how hard it was driven egt probe was in my downpipe and saw 1000c dozens of times never batted an eyelid, 100 + runs of over 170 mph. thats how nms do there engines, my engine was built by an ex nms employee and was as reliable as they come. and it also had a turkish 200 block in it. ive seen if first hand if there built properly they are reliable no matter how hard they are used.

 

going back to btcc rs 500s here...why do you think ford/cosworth desighned a thick wall block????it was for the intention of long studding to with stand high boost pressures...
Im not going to mention names or engines but have seen a nms block cracked and have heard of another(not slating nms here)believe me it will happen especialy over 500 bhp!when the heads not clamped it will move around and on std head bolts sooner or later something will give...
the egt temp doesnt prove anything other than its fucking hot!!iv seen temps like that on a 300 bhp motor..
how many miles did/has your motor done at 2.2 bar??

cheers danny

 

its now done over 7k of hard work and its still going strong. i only mentioned the egt as it shows how much of a hard life its had. it was mapped by stu so the map was as good as it can be but it got worked hard and often. ive had a long studded t4 yb at 2 bar and standard bolts t4 at 2.2 bar and no problems with either of them. 2 out of 3 of my grp a headgasket cars have failed though and they were all strong stage 3 cars.

 

now now danny we dont want any fighting your a BIG lad lol fixed that clutch yet