timk2915

What's the best way to get more top end out of my truck. I just put in a new engine with mid-range RV cam, oversized valves, K&N filter, LC Header-high flow cat, 2.25" exhaust. I only have 300 mi on it so far so I'm not really pushing it but it definately falls a bit flat about 3500rpm. Is the timing off, I just properly adjusted the TPS and the timing reads 5DBTDC. Should I advance it, retard it or should I wait till the 500 mi valve adjustment recomended to start worrying about this stuff???? Any advice would be appreciated............Thank you, TIM.

Bumpin' Yota

if you have the 3vze engine your timing should be at 10* BTDC with the Te and Te1 connectors jumped...

the 22re was what 8* btdc? It should say on one of the stickers under your hood.

timk2915

..........my hood is aftermarket so no sticker but I was told % degree so I'll fix that. Also Its a 22RE, sorry I forgot that little bit of info. Thanks again........TIM.

Bumpin' Yota

I dont know the * timing for a 22re, I was just guessing with the 8* thing... More timing advance gives you better top end but less grunt down low, and vice versa from what I've read.

DudeBud

you have a mid range cam if you want more top end look to lc or trd cams and try advancing your timing a few deg. you probably dont want to be reving the guts out of your new motor just yet.

sefus

yea 8* for timing. the rv cam is a low to mid ranger, grab a 263 or 268 from ebngbldr for a lot less money and much better service. but also with a new engine (rebuilt) if thats what you have, it takes a heck of a lot of miles, like 3-5 thousand to let the engine loosen up and break in. lots of hp will free up after that and you might want to go back in and recheck the valves and timing. dont get too discouraged yet. whats the rig and whats your tire and gear combo?

kyle_22r

you don't want the 261 cam in a high revving truck -- it'll definitely fall on its face much above 3500RPM. the 270 sounds like what you'd want.