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Discussion Starter · #1 ·
hi, what are the main differences between the SEH (130bhp 8 valve in sri and carlton) and NE (115bhp 8valve in calibra etc)

i have heard and been told it is all in the head but someone now thinks it is in the pistons and block.

am i correct in thinking it is the valves and ports in the head that pose the difference in power and that the block is the same?
 

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totally addicted to cavs
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can only speak from my experience with the ford zetec engines, but i had 115bhp 1.8 engine and to convert it to the 130bhp (xr3i) spec you had to changes the cams, throttle body and ecu, so i would guess the difference would be in the head in this case, but maybe the the throttle body too
 

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Foldy roll
2001 Vauxhall Vectra SRi150 2.2 16V hatchback
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pistons are different, SEH ones have a shallow bowl to raise compression
head is slightly different iirc.
ECU too
cams.. probably.. not 100% on that
 

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Discussion Starter · #8 ·
head and cams i can do no worries. not gonna tamper with pistons.
how easy is it to change ecu? is it the same ecu as the 2.0 carlton aswell.

and what is the throttle body :mmmm

thanks asnyway great advice so far
 

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CavWeb's Oldguy
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No point in changing the ecu if you aren't changing the pistons. You only have half, if that, of the difference.
 

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Cam, pistons and ECU are different

DOnt know about the oil cooler though...



AND, got a whole SEH in bits in the shed, if anyones interested...
 
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