Boost related question about super low compression in a Ferrari
#1
Thread Starter
Join Date: Oct 2002
Location: Eagle Mountain, UT, USA
Posts: 1,708
Likes: 0
Received 0 Likes
on
0 Posts
Boost related question about super low compression in a Ferrari
I was reading a book the other day about internals of a Ferrari F40 engine. I read that the compression ratio from tha factory was like 7.5:1 !! Why on earth would they choose to go with that? For those that don't know this is a small displacement V8 quad cam engine with twin turbos I know its not Honda related but it got me thinking wouldn't that make a really laggy car until high boost is met? Would there be any reason to do this in a Honda? Come one I know there are some smart guys around here...
#2
Member
Join Date: Jan 2003
Location: Minneapolis, MN
Posts: 2,202
Likes: 0
Received 0 Likes
on
0 Posts
Re: Boost related question about super low compression in a Ferrari (crx12)
DSMs are very similar and are not slow and not laggy.
Lag mostly is due to turbo sizing.
Lag mostly is due to turbo sizing.
#3
Member
Re: Boost related question about super low compression in a Ferrari (Drag_On)
The low compression is not nessessarily simply because they wanted it that low. The Ferrari engine has a very short stroke and a lot of valves, which require a larger combustion chamber.
#4
Thread Starter
Join Date: Oct 2002
Location: Eagle Mountain, UT, USA
Posts: 1,708
Likes: 0
Received 0 Likes
on
0 Posts
Re: Boost related question about super low compression in a Ferrari (beepy)
Oh that makes sense, I'm not sure but I think It may have had 5 valves per cylinder so that makes sense. Plus if they wanted try and unshroud the valves at all it would make it even harder to maintain a high compression ratio. I have heard NA Formula One engines have pretty low compresison as well. Well 10.5:1 or so due to unshrouding. But they rev to 18K rpm so its not a big deal.
Thread
Thread Starter
Forum
Replies
Last Post
TehMoonRulz
Forced Induction
11
05-16-2005 01:15 PM