hey guys my mate just stroked hes vp and just got the computer programed and its only making 164rwkw, when he got same parts as mine and im in the 200rwkw, any ideas.
(so i take it he will blow it to now lol,)
what would 164 be a fly wheel as auto is ll rebuilt..
cam timing
tuner
dyno correction factors
diff gears
auto
stall
tyre size.
Unless the cars are identical they may never make the same power.
Even different stroker kits.
yeah same gears as mine. mine fells more torquey then hes.
i dont understand what you mean stock with stroker kit. (two98)
im new to the v8
its a 304 with a stroker crank and all the rest to it.
he does have 3 angle grind does that give you any power or any thing..
Quote:
Originally Posted by FRASHD
so are your diff gears the same??
who's car feels faster on the street.
that will make no difference in power diff gears will only change the torque , i would say maybe his cam is not right maybe it needs to be taken out spun either way my mate had the same problem with his r32 gtr when he first got it , he went from 240 to 290 just by adjusting his cams .
its been bored 30, got 9.8 comp pistons, heads been port polished, big cam, roller rockers double springs, thats all i know..
what can he do?
how much is it the do the cam (BT) shouldnt the mancanic know if not right..???
As said above, check the cam timing first!
What intake manifold does it have? If it is a std bunch of bannana's manifold then that is why it makes no power.
We did an engine for a mate recently that was similar, 355, decent cam, heads had a pocket port and was just a good budget motor. With the std manifold albeit a bigger TB it only made 182 and was falling over at 4500rpm.
The std manifolds are no good for anything above that unless they have forced induction. Get rid of it for a twin TB setup or a COME or something similar and the thing will take off!
Quote:
Originally Posted by MrN20
what are the cam specs? and that compression is ****ful, no wonder its not making power
9.8 is fine for a reliable street engine.
Some original photos have not been recovered yet.
Quote:
Originally Posted by ben2363
its been bored 30, got 9.8 comp pistons, heads been port polished, big cam, roller rockers double springs, thats all i know..
what can he do?
how much is it the do the cam (BT) shouldn't the mancanic know if not right..???
yes and no
but not all mechanics are what they say they are maybe check all cylinders fo compression as well if thats all fine and the mech say he is lost take it to a known workshop to sort it out for him .
yeah standed manifold with 70mm t/b the cam is around the
DUR .050 DUR and around 500 lift i think..
282, 295 234 244
and even so would more comp boost it up around 30 RWKW?
Well thats solid cam territory. Problem is 9.8 is too low for that cam. It would be more suited to something around 10.5:1 on PULP.
Your manifold will be killing it, guaranteed and you would see major gains from a change to a better manifold.
To give you an idea a mates motor, 355, 10.1:1, 286, VN heads with no port work, Torgue power dual plane and a 650cfm BG carb makes consistent 230rwkw with a T400 auto.
Also what exhaust is on this VP?
Its not exactly that simple to up the compression. He could shave the heads a little but you can then run into other issues with manifolds. And i dont think you would get enough out of them. Other options all involve the motor out of the car and back into pieces again.
The exhaust should be fine, but the manifold is killing it. I would swap the manifold and why you have it off maybe swap the cam down to something a little smaller that will work much better with that compression.
i agree yet the easiest thing to do is change the manifold and see what gains you have made. then if its still pitiful change cam. i would normally tackle the easiest stuff first unless there was an obviuos problem.
That cam will get choked with the stock manifold but it should still be making atleast 180-190rwkw with the current combo IMO. What did the dyno guy say?
