as stated ..i have a lack of vaccume ...tried may different tunes ..timing settings tps adjustments...

with the h22 last year i had almost -20hg of vac at idle and it ran good even on the low cam ...

the f20 im lucky to get above -10hg..
im pulling it all of tonight to double check it all to find out whats goign on ..

my low maps suck ***** (no wonder casue it doesnt go abouve -5 when cruising )

ive tried all diff combos of vac canisters and no canister..ran all 4 to map then ran 2 only to the map..no change ...ive played with timmign to ge tit as high as i can but soon as i touch the gas it doesnt do anytihgn till i hit -5hg then it accels...

im gonna get some vids up tonight of the problems im having with this peice of **** ..im really getting mad cause i cant even drive it without looking like a tool due to the bucking and jerking i get when i try to keep a steady speed...

the high cam work wonderfull and pulls hard to 8000 but it doesnt help me get to work and back (5 min drive)with out loosing my mind

any tips would be great guys

btw im tunned on crome 1.1.5 with gsxr tps at 1.51v close 4.5 open
thanks



Modified by machine4321 at 9:49 PM 5/11/2005

 

just to add i had a slipped exaust cam but it was only at idle for about 15 sec..no reving

did a comp test and it came out at 240psi on all 4+/- 3 to 4 psi to me this would mean that there is no bent valves but who knows right

the motor stock is 11:1 so it seems this is about what 240 would bring me ...

 

Wher are you pulling vacume from? Should be from 4 ports after the throttle plates.

 

stick ur hand over the ITB's to try to kill the engine. i bet u got a vac leak at the manifold gasket.

if u plug uip the intake and it still idles u got massive leaks.

good luck

 

hey guys


don: yes im pulling from the holes after the plates..the ones above the plave are capped off and dont seem to be leaking

john: thanks for a simple fix idea...i tend to over think things and bypass the obvious and easiest first...im gonna check it out when i get home tongiht

so if i plug one shoudl the motor stall....or shoudl i plug more then one

just ordered a intake mani gasket caus ei slaked and didnt order one cause i thought it would be fine, not sir eif its the problem yet but it doesnt hurt to have one ..

gonna get some TB cleaner to see if i can find a leak easier


thanks guys


Modified by machine4321 at 4:34 PM 5/11/2005


Modified by machine4321 at 4:48 PM 5/11/2005

 

i know ti sounds strupid, use a piece of carboard, and slap it over all 4 at the same time

 

well this is a good start becuase if i put my hand over #1 it stalls

hand over #4 it stalls

over 2 and 3 it doesnt stall
so theres a good sign

could be the vac can cause 2 and 3 goto the same can and 1 and 4 go to the a diff can

when i take my vac reading i take from 1 and 4 (map cannister) and i get the same vacume

 

halfway there

good luck i might in the same boat as u in a few weeks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by machine4321 &raquo;</TD></TR><TR><TD CLASS="quote">
could be the vac can cause 2 and 3 goto the same can and 1 and 4 go to the a diff can

when i take my vac reading i take from 1 and 4 (map cannister) and i get the same vacume </TD></TR></TABLE>

you shoudl put all into 1 can not two separate cans. tee all 4 into can then separate nipple to map and separate to brake booster. try to keep small vaccum hoses as well, not bi 3/8" looking ones LOL.

greg

 

thanks ive had great luck last year witht he 2 can's ..i use a small one for the map and larger for the brakes and the rest...but i will test and see once its working better

last year i could pull almost-20hg at idle ..it worked great
i have alot of things to double check but there is diffinitly a huge leak..i can cover both 2 and 3 and the motor doesnt stall out ...
ill have my new gasket on fri
see what happens


Modified by machine4321 at 9:50 PM 5/11/2005