Just sort of planning out the car for a time trial series I am planning to compete in this year and next, and the way they class cars is based on a point structure on mods (so for example, adding a turbo adds 7 points and bumps you up two classes).

Anyway, in an attempt to race in the lowest class possible, Im only doing the 'free' mods, with 1 left over point I can use up before being bumped up. Look to some of the experienced track stars here to give me advice on the best way to use it.


Here are some of my options:

-Rear wing (any size/material)
-front and rear diffusers
-removal of passenger seat
-plenum upgrade (any)
-front or rear sway bar change (only one though)
-test pipes



Here's what the car will already have under free mods, relevant to the topic:

-HFC
-spare tire/tools/floor mats removal
-JWT intake
-18x9 RPF1, r888 tires (not shaved)
-XP12/10 pads, blank rotors, non-brembo OEM, Brake ducts, SS lines, etc
-Solid/harder bushings where ever I can fit them (trans, engine, rear diff, etc)
-New struts (non adjustable)
-assume otherwise stock.


Based on this information, would I get much use out of a rear wing? The tracks raced on will vary and include some pretty high speed tracks, as well as slower more technical. I have never personally used a rear wing, so just wondering if its worthwhile with stock suspension and stock power level.


Thanks for any input

 

Sways will be a better mod

 

Cams How can they check that?

 

Why don't you change the mods based on each track? If you need more mechanical grip at Track A, do the anti-roll bar mod. If you need more aero grip at Track B, do the rear wing. There's no rule that says you have to run one set of mods the whole season.

 

 

Pretty easy.

"Sir, please pull the cam cover on the left bank for us. We'll be back in a 1/2 hour."

 

^This.

Most will require a dyno at some point or another.....and at this point almost all regions have a solid base of numbers for 350z's.

 

Apart from the part I don't want to cheat I don't want to risk something like that.

I can change mods, but I have to get each 'setup' inspected by an approved job ahead of time (not sure if I can go in and get several, I haven't gone through the process yet).

What I may just do is both, and just see whats quicker. Like you said, some tracks may be better for different mods.

 

What are your "home" tracks?

 

Remember aero enhancements are about balance. If you only have points for a wing you may be unbalancing the car. Of course I'm speaking of the more effective wings that are easily able to output 200 lbs of downforce. Without a increase in front downforce it could easily hurt the car. But I can't say for sure, it may be fine.

 

Change the cam timing....

 

wtf? Either way they can't tell.

 

You're obviously not a racer. Most race sanctioning bodies have the factory cam specs and they can measure lift, lobe centers, etc. with the cam installed in the car. If the scrutineers (like myself) find something out of spec they then order the competitor to remove the cams and they are sent out for more thorough testing. If the competitor refuses to have the car or cams inspected, they are disqualified and the approval to race (annual) is withdrawn for that car.

 

Its just not worth it. In the odd chance I do actually win something, I would never be able to live with myself A: knowing I cheated, and B: having it taken away by something I probably could have won without anyway.


Home tracks are mostly Ontario, so mosport international, TMP, shannonville, etc. Theres about 6 road courses within a couple of hours drive here, with 2 more opening next year, so theres a good variety. MIR is probably the fastest one, and TMP the slowest.


Maybe Ill throw a roll bar/fire system in by next year and free up another point so I can do something better :P

 

go with the test pipes or plenum upgrage. Both if possible.

 

very interesting way of sorting out the series, nothing like that in the UK

In my experience out of the options you have I would:

Install better drop links (assuming its free)
Then install a better front sway bar, or on this side of the pond, anti roll bar

The amount of time lost by not have a good turn in to a corner is quite considerible, as Zazz93 it is about balance which diffusers etc will cause you issues, especially without fully adjustable suspension...

any chance you could swap the upper A arms out to increase the negative camber on the front wheels?

Aero is a black art that requires tweaking and practice and doesnt necessarily benifit all driving styles

 

Again, cam timing.

 

.....because cam timing is a factor when the cam is removed and being inspected.....

 

When Dynoed. I don't see it being an issue if they inspect it, but oh well, that's just me.

 

Basically its not an issue if the competitor finishes at the back of the field. No one really cares about cheating if the cheater is getting lapped. It becomes an issue when a cheating competitor wins or finishes in front of someone who suspects cheating.