Every now and then there comes a dyno graph... - Page 5 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members

General Miata Chat A place to talk about anything Miata

LinkBack Thread Tools
Old 02-09-2009, 03:13 AM   #81
Senior Member
Join Date: May 2008
Location: Canada
Posts: 513
Total Cats: 110

There goes the tone of the thread

It started well, with a discussion about the magnificent torque curve that LSx modified Miatas enjoy. There was a little discussion about turbo vs. large displacement V8, followed by a nice side bar regarding who makes a better V8.

Lo, then you interjected with this whopper:
Originally Posted by elesjuan View Post
2 big *** valves > 4 tiny ------y valves.
This statement is so patently untrue, as any powertrain engineer will attest, that I assume that you threw it in there to "enjoy getting the rise out of people". You then cite the 2V specs for a top fuel drag engine, which, as several pointed out, is irrelevant since the rules prevent them from using the superior ------y 4-valve option. I won't even get into your ludicrous example of a 25.5Kl two-stoke marine diesel...

The fact that Ford, or anyone else, managed to put together a 4V design that made less power than another manufacturer's 2V effort says nothing about the pros and cons of 4V vs 2V and everything about each manufacturer's power goal and/or engineering ability. Any number of design flaws in that Cobra engine could have strangled ultimate power output.

GM kept the OHV design in the new generation LSx engines for the simple reason that it packages better. It allows for a lower hoodline in the Corvette. It is to their credit that they did so well given that restriction. It's a fine motor, by any standards - powerful, durable and relatively inexpensive to build. It cannot, because of the limitations of its 16 big *** valves, approach the HP/liter of any number of 32V V8s, no matter how much the voices in your head tell you otherwise.
DeerHunter is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Why dynos should plot Torque divided by MAP JasonC SBB ECUs and Tuning 11 10-27-2015 05:56 PM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM
1.8, C30-74 Rotrex, 9psi, 235WHP/190WTQ (E85) Lincoln Logs Dynos and timesheets 4 09-23-2015 01:26 PM
New personal best 1/8th mile tehzack Dynos and timesheets 10 09-21-2015 07:30 PM

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 03:35 AM.