wots the best manifold? - Saxperience

tommyc · 27th December 2006, 13:02

whats the best maniflod for a mk2 vtr? i want 4 - 2 - 1 but im not sure which 1 to get!!!
please help by offering advice.

bullit · 27th December 2006, 13:08

gmc 4-1 would be best but if you want a 4-2-1 then supersprint

James · 27th December 2006, 13:19

GMC 4-1 always have a great feedback.

Barry123 · 27th December 2006, 14:10

depends what you want.

4-1 will give increase the torque right at the top of the rev, little less lower down.
4-2-1 is a good comprise between standard and 4-1.

2klthor · 27th December 2006, 14:22

depends how you drive and what its for, if its an everyday car not a track car, then go for the 4-2-1, its not like you drive at 5k revs through your local village, so you will feel the benifit a lot more

although if its a track car go for the 4-1 mate

luke

sax51 · 27th December 2006, 14:46

hi people

looking for more bhp with out robbing a bank i have fitted

open air filter
cat back stainless zorst

what next ?
4.2.1 manifold ?
chip?
closed filter?

idea`s would be greatfull

sax51 · 27th December 2006, 14:47

sorry wong place
sorry ive had a few tinns

Barry123 · 27th December 2006, 14:57

lol.

ditch the open air filter first of all mate.

stiffler69 · 27th December 2006, 16:55

I got a pro tech 4-2-1 on my vtr £175 on ebay here is how i see it you are already starting with your torque low down on a vtr and your never really going to make it into a car with high end torque like the vts has so why not work with the tools you have been givin and work on acceleration as apose to going for a 4-1 manifold and increase your power higher up the rev range by the time you get to this hi end revs you are losing most of you power curve anyway as you only have 8 valves, the power on my mk1 vtr comes really low in the revs its around 2500rpm and starts to fade around 6-6500rpm, i would work on this mate.

axsaxoman · 27th December 2006, 23:32

stiffler -you are presuming he is going to keep std cam --,and power is over the top on std vtr by 5500k.
you want to make it pull to the limiter at sensible money ,this is ALL you can do without spending at least twice the money
270 cam ,skim head ,4-1 ,enclosed air filter ,
any more than that and it will run like a bag of crap on idle ,should give you about same as std vts,if done correctly

stiffler69 · 28th December 2006, 12:59

Quote:

Originally Posted by axsaxoman

stiffler -you are presuming he is going to keep std cam --,and power is over the top on std vtr by 5500k.
you want to make it pull to the limiter at sensible money ,this is ALL you can do without spending at least twice the money
270 cam ,skim head ,4-1 ,enclosed air filter ,
any more than that and it will run like a bag of crap on idle ,should give you about same as std vts,if done correctly

Sorry to thread steal
I got a piper 285 cam idles fine and runs fine and ive had the car remapped and currently running around 120bhp wich is 30bhp increase on its standard power is fairly good however i did not get the head skimmed is this something i should of done or thought about doing?

Barry123 · 28th December 2006, 13:01

Quote:

Originally Posted by stiffler69

Sorry to thread steal
I got a piper 285 cam idles fine and runs fine and ive had the car remapped and currently running around 120bhp wich is 30bhp increase on its standard power is fairly good however i did not get the head skimmed is this something i should of done or thought about doing?

can vouch for that... mad little car.

Awesome sound too.

hesslevtr · 28th December 2006, 10:35

my gmc 4-1 rocks