Dyno Results Ford 331 Stroker TFS Heads and Intake - v8 Miata Forum - Home of the v8 Miata Conversion
v8 Miata Swap Chat


V8 Miata Dyno Results Show them who's boss.

Reply
 
 
 
LinkBack Thread Tools Search this Thread Rate Thread
Old 03-13-2018, 09:51 PM   #1  
V8 Miata Fan
Thread Starter
 
engineer's Avatar
 
Join Date: Aug 2015
Location: Sydney Australia
Posts: 69
Thanked 4 Times in 4 Posts
Default Dyno Results Ford 331 Stroker TFS Heads and Intake

Hi All,

Here is my dyno sheet for the following engine configuration:

Ford 331 stroker, TFS 11R 190cc heads and TFS R Intake with 75mm TB and custom Ed Curtis Cam ([email protected] thou and 0.6 in lift..its a small and civil cam for daily street duties) running about 11:1 comp.
Transmission is T5z, Diff is 3.27 LSD Ford 7.5 and Tire size is 215/45 R17.




335 HP at the wheels


The car was wheel spinning on the dyno and throwing off some rubber chunks as it hit the redline LOL...We did not have the car strapped down, so it probably makes a little more if strapped.

We kept the A/F ratio at 12:1 as the comp was a bit higher than expected so we played it safe, probably 5-10 rwkw in leaning it out a little more to 12.7:1. But in the end 5-10 rwkw is neither here nor there on the road..plus those kw's are only available at 5800-6200rpm anyway.

I could have easily made an additional 20-40 rwkw with a stronger cam, but it makes the car more tiring to drive daily in traffic. i didn't want a very lumpy car that spits fuel at idle due to valve overlap as I need to make sure it passes emissions and noise.

Most important thing to note is area under the curve for both torque and power. The torque curve on this engine is very flat and long, the effective operating range of the cam is 1800-5800 rpm (what you need on a street car).

The graph shows the road speed as opposed to RPM. The test was done in 4th gear a 1:1 ration on a T5z.

Converting to RPM the 70 kph start point is 1950rpm and the end point of 200 kmph is 5700 rpm (was getting some spin at the top end on the rollers).

Enjoy!
engineer is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
302 with Tfs heads for sale MegaMiata Parts For Sale 2 04-25-2017 02:40 PM
Supercharged miata dyno results Five-o-joe V8 Miata Dyno Results 13 02-02-2016 04:44 PM
1992 Ford Powered Dyno Results from Sat. Five-o-joe V8 Miata Dyno Results 7 12-09-2015 09:45 AM
331 Laguna Dyno Results MRM331 V8 Miata Dyno Results 4 10-21-2010 07:57 AM
Ford 306 Dyno Results MRM331 V8 Miata Dyno Results 10 01-22-2010 10:23 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Rate This Thread
Rate This Thread:

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 -5. The time now is 05:00 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.