1001 replies to this topic

[Johnny D]

Everyone top prep is already going .010 over correct ?
J~

[Tom OPM]

My thoughts on what if between a Header and compression, i would favor compression. Has about the same affect on curve shape but is so much more controllable in tech. Exact same for everyone with no variance. Path of least resistance with most predictable results. 

Ralph Really ?  This is not what the majority 1.6 owners want. May be a good answer, but not what the customer is asking for. How much do they get ? What do they have now ? Do they have any way of checking it ? How much do they wack off the head ? We gave them .4 and they were checked and they did .5. Whoops head is no good and a DQ. I really think the customer is asking for something relatively cheap, will make their car somewhat more competitive and easy to do.Sometimes you have to do what the customer wants not what you think is best for them.

[38bfast]

Ralph Really ?  This is not what the majority 1.6 owners want. May be a good answer, but not what the customer is asking for. How much do they get ? What do they have now ? Do they have any way of checking it ? How much do they wack off the head ? We gave them .4 and they were checked and they did .5. Whoops head is no good and a DQ. I really think the customer is asking for something relatively cheap, will make their car somewhat more competitive and easy to do.Sometimes you have to do what the customer wants not what you think is best for them.

 

valid argument. 

[Mike Collins]

Jim bought it up earlier... the cars would be ALOT closer on skinnier tires.  The 205 Hoosier is bigger than a 225 Toyo.  The current Hoosier tire is an exceptional value, for those of you that want the glory days of Toyo you are fooling yourself. I run SSM on Toyo's as well as SM and use one set per weekend shaved to within a gnats ass of its life to run up front...

 

Hoosier needs to make us a 195.

[Jim Drago]

Everyone top prep is already going .010 over correct ?
J~

not correct

[Bench Racer]

 WTH are we adjusting every NB car for only 10 guys willing to add header? that makes no sense at all to me. I know that is a guess at the numbers, but I bet it is not that far off.

You answer because you like to play with words.

 

Your totally buying into what Tom said, and you bet in  on the numbers.  "I know that is a guess at the numbers, but I bet it is not that far off."

 

No comment on the non-Majors numbers compared to the Majors numbers. Anyone know where to find the total 2015 non-Majors participation numbers?

 

I find the 1999 Miata factory spec for timing to be 10* +/- 1*.

[Johnny D]

not correct

For 1.6's ?
ok
J~

[Jim Drago]

You answer because you like to play with words.
 
Your totally buying into what Tom said, and you bet in  on the numbers.  "I know that is a guess at the numbers, but I bet it is not that far off."
 
No comment on the non-Majors numbers compared to the Majors numbers. Anyone know where to find the total 2015 non-Majors participation numbers?
 
I find the 1999 Miata factory spec for timing to be 10* +/- 1*.

As always I welcome any protest by you or anyone else on any of my cars.

In the future, just know that I concede.. You are 100% correct in all that you post and I am most certainly incorrect. That applies to all, even opinions. I think it will just make both of our lives MUCH easier.

[Jim Drago]

For 1.6's ?
ok
J~

I wouldn't know, no one is building them

[Johnny D]

J~

[JRHille]

Just give them a damn header already

[Johnny D]

I too am getting a bit tired.

it's seems to be a bit different this year. (Besides DD broken record)

We received test info. (they really tested a car or two, wow)

A poll, does the 1.6 need a little help.

Some SMAC saying I'm for some changes.

There's been more hope then most years IMO.

November Fastrack's out around the 20th.
Just saying.
J~

[Bench Racer]

Johnny D, ask yourself, whose ruling the roost, Mazda, SCCA, CRB, SMAC..................... Who paid for the JPM work?

[Johnny D]

Johnny D, ask yourself, whose ruling the roost, Mazda, SCCA, CRB, SMAC..................... Who paid for the JPM work?

J~

[FTodaro]

Hoosier will make us a thinner tire, like a 195. Collins recommended that a few years ago and Hoosier was on board when I looked into it.

If we do this please give us time to use up what we have.

 

but

 

This should be discussed further. 1) i hope a smaller tire would be cheaper 2) we have several issues that crop up regarding the excessive grip we get with the Hoosier, front hubs fail, Rear Hubs fail, even more now, and we are seeing hubs front and rear crack and come apart. I have had those failures too.

 

We are seeing transmission failures that could be compounded, by excessive grip, downshifting too soon, and blasting 3rd gear. 

 

I am not an expert on if the smaller tire would make us closer on parity, but we do not need the level of grip that we have. I assume the tire would last as long or they could engineer it to last as long.

 

I think this needs to be put on the table.

[Johnny D]

If we do this please give us time to use up what we have.
 
but
 
This should be discussed further. 1) i hope a smaller tire would be cheaper 2) we have several issues that crop up regarding the excessive grip we get with the Hoosier, front hubs fail, Rear Hubs fail, even more now, and we are seeing hubs front and rear crack and come apart. I have had those failures too.
 
We are seeing transmission failures that could be compounded, by excessive grip, downshifting too soon, and blasting 3rd gear. 
 
I am not an expert on if the smaller tire would make us closer on parity, but we do not need the level of grip that we have. I assume the tire would last as long or they could engineer it to last as long.
 
I think this needs to be put on the table.

If only there was a thread to discuss this further

http://mazdaracers.c...ity/#entry82926

J~

[FTodaro]

If only there was a thread to discuss this further

http://mazdaracers.c...ity/#entry82926

J~

I did not see it, till i posted can you move it?

 

Dam this is a tough crowd.

[Johnny D]

Move the thread ? Move your comment? move the crowd ??

 

J~

[James York]

Right, like when all those liquidated NCs get lonely.  

Exactly.  And that transition to NCs should be cold turkey.  Pick a year to implement and its NC only for SM.  Older cars can move to vintage or something like SM2, or whatever.

[Sean - MiataCage]

Instead of the header, what if somebody did a (top prep) on a manifold (grind, etc) what would you get ?

We have enough of those.

Just throwing out ideas.
J~

 

I just did this today on an engine dyno.  5K they are even, 6K its about 1.3hp, 7K its about 1.7hp torque is less than 2 across the board as well.  This was on an egine dyno so driveline losses are not taken into account so this is not what you would see at the wheels.  I believe as Ralph has pointed out this just takes the finding of the magic one out of the equation and lets everyone get closer to the same one and makes it possible to tech. 

 

The grind on the header we did was a B+ quick and dirty to simulate the amount of time that most would put into it with minimal tools.  I guess it could be a little bit better if someone wanted to invest the time into it.

 

It was an engine dyno, so the exhaust was not a Springfield Dyno like we would use on the cars.  The physical space constraints just don't easily make it possible.

 

Even though we have the flywheel evaluation that Tom/Steve and Rich did I am testing the flywheel on the egine dyno as well.  That should be completed this week as well.

 

Sean