TSRPartsman
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Vega Dirt Series Race #4 Crossroads Motorplex - Jasper, FL
- Thread starter TSRPartsman
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TSRPartsman
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Vega State Dirt Series “Spec Clone 375” Engine rules 3/19/19
Carb rules AKRA/NKA Tech as per both sanctioning bodies and no alternations to throttle stop, throttle shafts and Emulsion tube
Main jet size- (.036” must go) to (.042” no-go) limits
Low speed pilot jet size- .027” max no-go with O-ring must be intact and present
Bore ID- .615” no-go
Exhaust pipe unaltered- Rapp thin flange header pipe and RLV small muffler tech'ed per AKRA/NKA rules and measurements, all as supplied. Pipe can be heat shielded wrapped or not, racers decision. If wrapped it must be securely wrapped or sleeved starting at beginning of silencer to mounting flange, no wrapping/sleeving allowed on silencer.
Air filter- stock regular filter as supplied—RED in color or any #175 style angled filter allowed. No performance gain filters per AKRA/NKA rules. No alternations to filter.
Fuel pump as supplied
No tape on outside of engine for air flow changes to engine itself
Chain guard, throttle linkage and top plate are non-tech along as not a performance gain if changed from as supplied stock kits.
Timing will be no more than from 32 degrees before TDC. This can be checked with flywheel in place. No Flywheel removal is needed. Further Flywheel inspection will have an off-set key of 10 degree having a .075” maximum step.
Final: All accessories raced as supplied otherwise noted above and if any questionable part develops it can/will be compared to a known “as supplied part”
“No-go”, in these terms means “No Start”
Spark plugs:
LD- F7TC & Autolite 3910x are the only allowed with no modifications
No gear rule – Currently
These rules have been reviewed and approved by Box Stock Project on 3/11/19
Carb rules AKRA/NKA Tech as per both sanctioning bodies and no alternations to throttle stop, throttle shafts and Emulsion tube
Main jet size- (.036” must go) to (.042” no-go) limits
Low speed pilot jet size- .027” max no-go with O-ring must be intact and present
Bore ID- .615” no-go
Exhaust pipe unaltered- Rapp thin flange header pipe and RLV small muffler tech'ed per AKRA/NKA rules and measurements, all as supplied. Pipe can be heat shielded wrapped or not, racers decision. If wrapped it must be securely wrapped or sleeved starting at beginning of silencer to mounting flange, no wrapping/sleeving allowed on silencer.
Air filter- stock regular filter as supplied—RED in color or any #175 style angled filter allowed. No performance gain filters per AKRA/NKA rules. No alternations to filter.
Fuel pump as supplied
No tape on outside of engine for air flow changes to engine itself
Chain guard, throttle linkage and top plate are non-tech along as not a performance gain if changed from as supplied stock kits.
Timing will be no more than from 32 degrees before TDC. This can be checked with flywheel in place. No Flywheel removal is needed. Further Flywheel inspection will have an off-set key of 10 degree having a .075” maximum step.
Final: All accessories raced as supplied otherwise noted above and if any questionable part develops it can/will be compared to a known “as supplied part”
“No-go”, in these terms means “No Start”
Spark plugs:
LD- F7TC & Autolite 3910x are the only allowed with no modifications
No gear rule – Currently
These rules have been reviewed and approved by Box Stock Project on 3/11/19
TSRPartsman
Site Supporter
Vega Dirt State Series Transponder Update:
All transponders must be mounted to the left front upright nerf bar tube and not the top bar where it can slide. Any other transponder bags or mounts will be removed. This will be strictly enforced.
All transponders must be mounted to the left front upright nerf bar tube and not the top bar where it can slide. Any other transponder bags or mounts will be removed. This will be strictly enforced.
TSRPartsman
Site Supporter
The Vega Dirt State Series is now linking to the official AMMB transponder site. Speedhive/Mylaps can now be used for race monitoring and online review. The app is free at: https://speedhive.mylaps.com/app
speedhive.mylaps.com
Speedhive App
The free MYLAPS Speedhive app gives you quick access to the official…
speedhive.mylaps.com
Speedhive App
The free MYLAPS Speedhive app gives you quick access to the official…