Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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i'm debating what cams to get with my throttle bodies
dont want anything too lumpy at idle, dont really want solid lifters, and i dont want my rev limit set at more than 7400rpm really
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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264 dude! use standard pistons too wit hthem
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jr
Member
Registered: 20th May 02
Location: Kent
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as that broster bloke said
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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good point, i forgot about valve clearance
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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id go for 264's on your engine itll be fine then with a set of arps and rev happily to 7500 all day long! other than that go for a set of 288's and get 2mm pockets cut into the pistons arps and rev it to 8500 all day long and hope for the best
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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lol, i'd rather have useable power witout having to make my engine poo itself
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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after tomorrow youll see haveing tbs means more useable power than you have now, with bigger cams it means the power is usable for longer and longer till it pops!
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RobHayes
Member
Registered: 6th Sep 03
Location: Lincolnshire
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which bit is likely to pop first at 8500 with that setup?
temptation is high.....
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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pistons will melt, con rods are on the limit and most prob punch holes thru the block lol! mines been fine so far tho, think 8k is a safer limit with 175bhp still available! prob more if ou retard the cam iming some
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
User status: Offline
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quote:
Originally posted by RobHayes
which bit is likely to pop first at 8500 with that setup?
temptation is high.....
the engine
the whole thing
it will all die a massive, smelly oily death
on the plus side, it'd be fun just before.....
and it would spit flames on the M1
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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lol, flames.... we have to love the flames from an NA engine! its prob sparks from the conrods hitting the bores......... lol
[Edited on 14-11-2005 by broster]
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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we shall see, i need higher than the 7750rpm i had last time definately.
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corsa120
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Registered: 4th May 02
Location: Northamptonshire
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i was reading tv magazine had old guide in ages ago they reckon small block xe's can handle 7.5k limit with no upgrades, but is recommended to do rod bolts as with any enegine
but cylinder head developments ltd reckon reckons valver bottom end can handle 8-9k with no upgrades, shit man i would not trust it lol 
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Robin
Premium Member
Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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the little XEs will rev to about 9k before going pop, but its not wise, and they wont last long
i think most engines will do itt occasionally no problems, but i wouldnt want to do it to mine for any length of time really
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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It's the std pistons which don't like over 8k they tend to cadburys and fall apart as they don't have the internal strength to take the accelerative forces geenrated at those rpm. Not saying you can't rev that high, but everytime adds stress. Swindon race engine said 8250rpm is the constant limit for the rods. And according to S Gault in ireland it's the small end that fracture first.
I think if your'e spending the amount on Tb's spend a bit more, get omega on std rods (but fully floating small ends) and run some 295/300deg cams doubel valve springs and keep the hydrolics. you'll smash 180BHP and at under 8k aswell.
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Stu_22
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Registered: 25th Mar 02
Location: Luton
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Whats a fully floating small end?
Plus is there somthing wrong with solid lifters or is it just the extra cost that puts people off
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RobHayes
Member
Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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might have to look into omega's then. suppose waiting another month wouldnt harm to much
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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the cost put me off, and there was no real need for them as yet.
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RobHayes
Member
Registered: 6th Sep 03
Location: Lincolnshire
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cheapskate
it'll only cost you more in the long run....
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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not if you dont need them!
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RobHayes
Member
Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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course you need them.....
you need everything
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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all i want it 4 wheels the same colour and not blue lol
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dna23
Member
Registered: 1st Nov 04
Location: Northamptonshire
User status: Offline
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get johnny to sort the cam timing he the man 
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James R
Member
Registered: 4th Feb 03
Location: 205GTi16/306GTi16
User status: Offline
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You loose power using the std pistons, cause the dymanic CR is reduced by the incrased overlap 
Solids put ppl of cause they cost £200 to buy then 200-300 to have them spaced correctly.
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RobHayes
Member
Registered: 6th Sep 03
Location: Lincolnshire
User status: Offline
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the only thing putting me off solid lifters is the ticking noise, like engine is knackered. i can live with less power
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