i just built myself a lsvtec


b18b block
ls rods
p30 pistons
arp rod bolts
acl race bearings
gsr water pump
type r oil pump

gsr head
fresh out the machine shop
new manley flat valves (std size)
supertech springs and retainers
port and polish
valve job
milled
blox spec b cams




i had the motor in my car drove it around a lil to break it in then after a few hundred miles i tried to get vtec and its dnt sound right i really dnt kno how to describe it but its sounds like my exhaust fell off it sounds like **** and the car dnt pull for **** in vtec

i turned vtec off wit my s300 and have been crusin around like that the cars fine like straight ls but idk what the problem is with vtec

i took the cams out and put stock ones in i thought maybe it was cuz i didnt have a good tune

i checked the vtec solienoid filter/screen and it was fine no shavings or nothin

idk what to do next i had the head on my gsr before i took it to the machine shop to get it milled and checked and cleaned and i get it back and no vtec it was fine before i took it there

i have a full race ls vtec kit the machine shop put the plug in the head


now with the stock cams when it hits vtec it just looses all power just like falls straight on its face everything was fine before i took it to the machine shop



could the rockers have been assembled wrong?

could the plug be in the wrong spot?

any idea?

 

your running a vtec head with stock ls cams? did you do research on how to build a ls/vtec?

 

no stock gsr cams yea i did i got the golden eagle dowels full race lsvtec kit and cometic lsvtec headgasket the machine shop pluged the head and did all the head work i built the bottom end and put the head on

 

this is my 3rd motor i built i had a built gsr and i rebuild a b16 both was in my car running fine i just wanted a ls vtec so i built one i aint stupid i know what i am doin i am just clueless wit the problem i am having me and all my boys work on our own **** and none of us kno what it is

 

Your compression sounds really high. Probably more than 12.5:1 because you milled the head. What gas are you running?

 

Yea it's pretty high but I use 93 octane pump gas it's my daily

 

Which spark plugs are you using?

and

How much was the head milled?

 

ngk part# bkr7e

and the head wasnt milled nothing serious it was just milled minimum amount ill have to ask the machine shop but he said he didnt have to take alot off he just gave me a fresh surface to work with

 

i never said you was stupid. if you got attitude then why ask for help???? i work on my own **** and people come to me for help all the damn time so chill knowing about cars dont make you special....obviously something went wrong somewhere during the damn build. check your damn timing for the sake of your skills

 

Did you tap and plug the block?

 

i wasnt tryin to get smart or nothin i just dont want ppl askin me stupid question my bad and the timing is perfect

 

tap the block? i tapped the head and plugged that but are you talking about the black box on the bac of the block? cuz i have a obd2 ls block it dnt have the black box but i have a catch can i am going to install on sunday when i an off work

 

we'll then do a compression test and see what your numbers are

 

i got it there was a oil restictor in my lsvtec kit it came with it so i had put it in and the head wasnt gettin oil to let vtec work thanks for everyones help