there are so many little things to make an ls vtec reliable. boost the ls get a good tune and make 220whp. you wont crack 200whp with oem parts on a lsvtec. you will need cams, rods, pistons.....man its a lot of money. more that i think about i AM going to sell my stuff LOL
yea i am in the process of building an ls vtec and i am thinkn of just going boost on my ls. not sure time wise, but i have a friend that makes lsvetc 180whp in a 94 civic coupe and can barley keep up with a 92 hatch with lsvtec 169whp.
2 things you might want to check on the idle. 1. check your IACV 2. check the coolant why is your vtec kicking in so late? what ecu are you using? did you get it tuned?
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