Dooie Pop Pop
New Member
are these a worthwhile mod for an R?
vernier pulleys
- Thread starter Dooie Pop Pop
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Dooie Pop Pop
New Member
what would you call a 'big spec' for a pulsar? 400bhp+?. wouldn' t making the cam timing more accurate make for a more better smoother revving engine :?
cheers, stu
cheers, stu
A
AJ4
Guest
there is a theory that the cam timing on the standard engine is pretty conservative, so having verniers will probably let you get a bit more power out of it, you don't have to have a massive power engine. Can't remember what it was, something like inlet +5' exhaust -2' is more optimum ( standard cams )
Just got the cost of putting it on a rolling road to find out....
Just got the cost of putting it on a rolling road to find out....
Dooie Pop Pop
New Member
im just thinking maybe its best getting an engine as 'in-tune' as possible. wouldn' t thought it' d be worth it unless you used cams as well. how much would a set of pully' s cost?
A
AJ4
Guest
You can move your torque curve around, you'll get the same improvements regardless of what cams you use.Mr GTiR said:
A performance cam will maybe give you more power / torque overall, but regardless of what the cam is, timing it properly to the engine is the same. Nissan didn't get it perfect for every individual engine
Dooie Pop Pop
New Member
think im getting this now cheers verniers will allow you to tune each cam individualy if iv read this right. they might not give you masses of extra power but can effect the way its delivered 8)
sound pretty usefull to me
would they be easy to fit with the engine out?
stu
verniers will allow you to tune each cam individualy if iv read this right. they might not give you masses of extra power but can effect the way its delivered 8) sound pretty usefull to me
would they be easy to fit with the engine out?
stu
C
clive760
Guest
cams pulleys
8)
who needs cams & pulleys am runing strd 1s & produsing 400ponnies with ease & mor 2 comDooie Pop Pop said:think im getting this now cheers
sound pretty usefull to me
would they be easy to fit with the engine out?
stu
8)
A
AJ4
Guest
yes, veryDooie Pop Pop said:
Heres another way of looking at it, you could say that its pointless fitting fuel / ignition controllers unless you are running big power, but who reckons the standard Pulsar fuel and ignition maps are perfect ? :lol:
Apparently standard cams are pretty good profile wise, just not necessarily timed right for your engine. Don't forget, everytime you change an airfilter, exhaust etc you change the way the engine breathes. You want to maximise the cams for your particular engine, regardless of what power it makes.
Dooie Pop Pop
New Member
iv read a little enough on this to confuse my self :lol: increasing the size of your exhaust increases the rate that exhaust fumes are removed from the combustion chamber.
if iv read correctly this means that you can start adding fuel earlier so i can see where retuning would be a good idea
seems like verniers can be of some use if you like the idea of fine tuning, depends on how far down the power road you want to go. but if the engines out already you might as well make the most of it and stick em on :lol:
intake wise im leaving it with a stock shaped 2and3/4" pipe and a ss filter.
clive? this is your R 8) what kind of manifold are you using ?
cheers for help, stu
if iv read correctly this means that you can start adding fuel earlier so i can see where retuning would be a good idea
seems like verniers can be of some use if you like the idea of fine tuning, depends on how far down the power road you want to go. but if the engines out already you might as well make the most of it and stick em on :lol:
intake wise im leaving it with a stock shaped 2and3/4" pipe and a ss filter.
clive? this is your R 8) what kind of manifold are you using ?
cheers for help, stu