some ?'s about headwork and fi engines
#1
Member
Thread Starter
Join Date: Aug 2002
Location: SoCal, ca
Posts: 2,384
Likes: 0
Received 0 Likes
on
0 Posts
some ?'s about headwork and fi engines
as some of you know i will be doing a rebuild over the winter. i have some questions on heads. I heard that its wasted money with FI...is this true? im refering to a P&P with titanium valvetrain (to rev out to 9500). Also what is the difference between a 3 angle and 5 angle valvejob. what does it mean???
thanks
Landon
thanks
Landon
#3
Honda-Tech Member
Join Date: May 2001
Location: Tallahassee, FL, US
Posts: 7,190
Likes: 0
Received 0 Likes
on
0 Posts
Re: some ?'s about headwork and fi engines (boosted_dc2)
The angle of the valve job is how many anges are used to cut the seat to achieve a perfect seal with the back of the valve, imo any more than 3 is excessive, and sometimes uneccesary except in big race applications, most cases the typical 45 degree cut on the valve back and seat work just as well. How much hp are you planning to make with this engine? That will dicate what you do to the head.
#4
Honda-Tech Member
Join Date: May 2001
Location: Tallahassee, FL, US
Posts: 7,190
Likes: 0
Received 0 Likes
on
0 Posts
Re: some ?'s about headwork and fi engines (boosted_dc2)
btw, go here for valvetrain: http://www.ef-1.com/
#5
Honda-Tech Member
Join Date: Jan 2002
Location: Raleigh, NC
Posts: 15,334
Likes: 0
Received 0 Likes
on
0 Posts
Re: some ?'s about headwork and fi engines (Jared)
I'd suggest the valvetrain...turbos love revs. Other than that, unless this is a race application, Id keep the head stock.
#7
Honda-Tech Member
Join Date: Apr 2002
Location: washington, dc, usa
Posts: 984
Likes: 0
Received 0 Likes
on
0 Posts
Re: (psi420)
I have a fully worked head by DPR.
Keep it stock, it isn't worth it. Definitely upgrade your valve springs though, 8k comes way too fast in a turbo b series. Most turbo b series will make good power up to 9k even on stock cams.
Keep it stock, it isn't worth it. Definitely upgrade your valve springs though, 8k comes way too fast in a turbo b series. Most turbo b series will make good power up to 9k even on stock cams.
Trending Topics
Thread
Thread Starter
Forum
Replies
Last Post
Suzukii
All Motor / Naturally Aspirated
2
12-23-2005 10:35 AM