Hey Guys,
I just purchased the Supertech 75# Valve spring kit. I have Stage 3 cams installed. Once I install the valvetrain and new cam finger rocker followers, do I need to be retuned? I don't think I need to be; its a plug and play sort of thing. However, I need you guys to tell me either way.
Thanks!
"FRIENDS DON'T LET FRIENDS DRIVE STOCK"
sure you do...
you change cams you change airflow..
From the way I read it he already is tuned on the cams?
If thats the case a tune isnt "needed" but there might be a little benefit if your getting valve float issues up top when you were tuned?
Tuned on the cams is what I meant. No, I was not having that issue. So, install the valvetrain and I should be good to go? What do you think the hp gains would be from lighte, lower in friction valvetrain? I will dyno the car before the install and after.
"FRIENDS DON'T LET FRIENDS DRIVE STOCK"
I would get the car retuned. It wont hurt anything and you might pick up a little more power. I wouldn't expect any gain in power with the valve springs, but you will greatly increase the reliability of your engine.
Gotcha! Reliability was one of the main reasons for purchasing the valvetrain. I think I'm making power around 6800 RPM. Maybe, I can make a little more with this upgrade. Once installed, and I don't get around to doing the tune, no problem right? I drove with my cams without a tune for a while and I didn't notice any HP gains from the install. When I was tuned, yes there was a difference!l But my point being, the cam install did not affect my driveability. I am assuming the same with the valvetrain?
"FRIENDS DON'T LET FRIENDS DRIVE STOCK"
I look into getting some head work done now too. Pick up a used head, port it, bigger valves, and THEN toss the valve springs on that head. Seems like a better option to me.
Tinkles - totally agree with you! If you look in the "Performance Forum," I have a posted up this thread: " ECOTEC L61 built head - who makes one?"
I want a built head - I have spoken to a few guys that don't have much to say about the Patriot Stage 2 head - barely flows better than stock seems to be the normal response. I did find a seller for this head and considering purchasing it. However, due to the advice I have received on going the LSJ route, I am beginning to look into that to see what I need to do instead. I have to contact someone on CSS.net, send him an LSJ head, he will P&P for a great price. Yet to find out who that is and where I can buy an LSJ head - doing research as we speak. Any info would be appreciated!
"FRIENDS DON'T LET FRIENDS DRIVE STOCK"
I did!
"FRIENDS DON'T LET FRIENDS DRIVE STOCK"
The guy is LSJion on css and you can find a head on there fairly cheap
I appreciate it. Crate Engine Depot has the head new for a grand, bare that is. I'll find out frim him and post back all the info.
"FRIENDS DON'T LET FRIENDS DRIVE STOCK"
