PDA

View Full Version : Unmapped Cammed VTR Info Needed!

evans1089
14th February 2009, 17:31
As some may be aware i've recently had my 2003 VTR cammed with newmans ph3 and a vernier pulley.

I want to know the limitations of the rpm and speed of the unmapped VTR's capabilities.

I'm just curious as last night the car felt restricted in 5th gear at 6.4k ish (estimate).

Is there anything i'm missing? The car doesn't sound like its not capable of doing more but it just doesnt...

Help me please.. :y:
AlexB
14th February 2009, 17:45
you do know your supposed to take it steady and run the cam in yea??

so beasting it straight off is a bad thing
dobbo_1
14th February 2009, 17:49
dont vtr's only rev to 6.2k or 6.3 standerd?
Spanky
14th February 2009, 18:03
6250rpm standard :y:
evans1089
14th February 2009, 18:26
you do know your supposed to take it steady and run the cam in yea??

so beasting it straight off is a bad thing

For how long Alex?
Spanky
14th February 2009, 18:28
whats it like runing it without it being mapped??

Bad idle?
Lumpy?

etc etc
evans1089
14th February 2009, 19:00
whats it like runing it without it being mapped??

Bad idle?
Lumpy?

etc etc

Nothing like everyone makes out.. It is lumpy but nothing extremely terrifying..
saxo_furio2000
14th February 2009, 19:42
For how long Alex?

im running my vts in which has been cammed recently , you should be able to ring up from where ever you got the cam and they will tell you. mine was on first start up immedietly run cam on fast idle between 2000 and 3500 for 15 mins (then i did my 2nd oil change) and im running it in not going over 4500rpm for 100 miles.

but im not sure about other cam makes , hope it helps
bullit
14th February 2009, 20:15
i bombed mine as i left the garage. was fine
AlexB
14th February 2009, 21:23
For how long Alex?

i was told a few hundred miles (by newman) just to to let everything settle in
blackie_2k5
14th February 2009, 23:33
i read in the newman catalogue i beleive it was 25 miles for ph3 other that evrythings fine, but ive also heard 20 mins at 2250 rpm, dont know if thats true tho
dan-dan
15th February 2009, 08:57
a well known engine tuner near me, runs cams in at 2 to 2.5k for 20 mins thats all they ever do. you could take it steady for 50 miles gently getting higher in the revs as you go?
evans1089
15th February 2009, 10:53
thanks for info guy :y:
mul_vts
15th February 2009, 19:55
shashing them cams up..i heard it was a 1000mile run in for cams below 3500rpm
evans1089
15th February 2009, 19:57
shashing them cams up..i heard it was a 1000mile run in for cams below 3500rpm

From where..?
blackie_2k5
15th February 2009, 20:17
dont think its that much like, not even close m8
Liam_
15th February 2009, 20:21
The PH3 has shifted the power band up the range to 3-7k revs. Without a remap and raising the rev limit, you're going to be holding it back somewhat as you're having to shift at 6.2k.

From what i've heard, you only need to let the valve springs settle which is a couple of miles driving tbh.
PETE-VTR
15th February 2009, 20:21
id ring newmans and ask mate then theres going to be no confusion. i can remember having a chat with chris at manic motors about the PT40 not that long ago and he dint say anything about running in slowly or not over revving.

its only turbos and TB's that need running in, just idle it for 10/15mins to let the springs settle back down etc
don55
16th February 2009, 00:29
i bombed mine as i left the garage. was fine

yup me too

there is big debates/conspiracies over running in of engines.