Which Type Of Runner???
Thread Starter
Burning Brakes
Joined: Oct 2010
Posts: 1,037
Likes: 28
From: Montclair New Jersey
Which Type Of Runner???
I have seen hundreds of threads on runners but; can't decide. Is it better to port and polish the stock runners or which brand can be bolted up with the same results?? I have a 1986 coupe with a L-98 getting ready to do a cam, heads, and intake but; that's it. Not for the track...
thanks.....
thanks.....
Drifting
Joined: May 2006
Posts: 1,428
Likes: 7
From: Chewelah Wa
Not much can be done with the stock runners. Unless you do what I did, not for the feint of heart or time challenged. SLP's would be a good way to go with some porting. TPiS runners, big ching, but probably the best. Try to get some used ones on this forum or watch the Bay. You used to be able to get SLP's new for 280 bucks on some LS website.
Racer
Joined: Sep 2010
Posts: 327
Likes: 2
From: se iowa
You just doing runners or the whole intake? i've seen a few setups in the for sale section here and over at thirdgen. hopefully my first intake is here at the end of the week and I'll get to eyeball that.
Race Director
Joined: Nov 2003
Posts: 12,221
Likes: 446
From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
C4 of Year Winner (appearance mods) 2019
Do not pass go. Collect $200. (Monopoly jargon).
Here's what you need. Great price. Already ported. Don't think about it a minute longer.
http://forums.corvetteforum.com/c4-p...-for-sale.html
Safety Car
Joined: Apr 2011
Posts: 3,660
Likes: 22
Stock runners are too thin to really get much out of them as far as opening or enlarging. I've done it, but they end up like tin foil....and very prone to denting after that, hell, they dent in your hands if you squeeze them too tight while mounting !
You can certainly match the ports and open the end plates, but the tubes...maybe a 5% increase in size...hardly worth the aggrevation that comes with the task.
The plenum...match it to whatever runners you choose. Its nice if you pull the intake and match the base plate to the lower runner, otherwise the work above at the plenum is never fully utilized if there is still a problem at the bottom....The stock baseplate CAN be opened and shaped, its just time and work. Well worthwhile if you polish everything and port match it all.
You can certainly match the ports and open the end plates, but the tubes...maybe a 5% increase in size...hardly worth the aggrevation that comes with the task.
The plenum...match it to whatever runners you choose. Its nice if you pull the intake and match the base plate to the lower runner, otherwise the work above at the plenum is never fully utilized if there is still a problem at the bottom....The stock baseplate CAN be opened and shaped, its just time and work. Well worthwhile if you polish everything and port match it all.
