TTS Rules

Thumper

Active Member
May 25, 2001
599
36
28
Kentucky
Turbo True Street TTS

1. A heads up, 400th pro tree and pro ladder class.

2. No peer tech related to safety equipment.

3. Any vehicle is subject to being reinspected and/or weight rechecked after

final round of eliminations or at any time deemed necessary by the RRA.

4. Any entrant caught deliberately or attempting to break the rules or breaches

that violate the spirit of the competition will be disqualified.

5. All cars must enter the staging lanes under their own power.

6. Minimum vehicle weight is 3550 pounds including driver.

Interior

7. Full stock appearing interior. No race seats.

8. Aftermarket shifters and additional gauges allowed.

Exterior

9. Full original steel body. No aftermarket fiberglass or carbon fiber body

panels allowed that replace steel.

10. Stock operating glass windows. No lexan allowed.

11. Stock original wheelbase measurement for your vehicle.

12. No external mounted gauges.

Tires and Wheels

13. Any matching set of four wheels required.

14. May use rear drag radials intended and designed for street/highway use.

No larger than a 275-60 sidewall designation.

15. No slicks allowed.

Transmission and Differential

16. Must use a 200-4R transmission.

17. Must use factory stock differential housing.

Suspension

18. Factory stock suspension mounting locations required. No relocation

devices/brackets like the southside or baseline style may be used. No rod end

style suspensions.

19. Any sway bar configuration/mounting okay.

20. Front sway bar may be removed.

21. No ladder bars or coil over suspension allowed.

22. Must use stock style coil springs.

23. GNX must have original GNX suspension.

24. TTA must use factory production stock k-member.

Intercooler

25. Any air to air intercooler allowed. Front mount may not extend below the

bottom of the stock radiator support. This does not include the pipes.

26. No external spray cooling or cold boxes allowed.

Fuel

27. Must use factory style fuel tank with no external modifications in stock

location.

28. No external fuel pumps allowed.

29. Factory location fuel pressure regulator required.

30. The use of nitros oxide is not allowed.

31. Alcohol injection is allowed. Must be injected into up-pipe near the

throttle body.

Turbo

32. One 3 bolt factory located turbo with a maximum size compressor inducer of

62mm. Can use either a TA or E cover with a maximum of 3" inlet and

2" outlet.

*This turbo rule will require the tech of every turbo at each and every

event. Please be prepared for disassembly of any cold air components

for the measuring of the turbo as part of tech.


Engine and Engine Compartment

33. No distributor ignitions allowed.

34. No stage 1 or 2 iron or aluminum blocks allowed.

35. No stage 1 or 2 heads allowed.

36. Any production Buick V6 block that was available in passenger cars

from the factory allowed.

37. Factory intake manifold required. No external modifications for

performance enhancements allowed.

38. Factory type battery. Must be in stock location.

39. Radiator must be in stock location.

40. No manual brake systems allowed.

41. Engine and firewall must be in stock location.

42. Any car configured as a 86-87 Turbo Buick or 89 TTA must have all

factory installed heat and air conditioning components in proper location.

Exhaust

43. Any single or dual exhaust (3" maximum diameter) system that must

be muffled and exit in stock location.

44. Downpipe (3" maximum diameter) routed in stock location. Internal or

external wastegate system allowed as long as it is routed/dumped back

into exhaust system.

45. No flex pipes allowed.
 
Last edited:

jasjamz

THS Racer
Sep 30, 2004
5,353
225
63
Chicago area
Are these rules set in stone? 18. kicks me out. I have the Baseline Suspension uppers. The bracket is bolted in the stock location. It just helps with adjustment of the IC. Is it that big of a deal?
 

Thumper

Active Member
May 25, 2001
599
36
28
Kentucky
Are these rules set in stone? 18. kicks me out. I have the Baseline Suspension uppers. The bracket is bolted in the stock location. It just helps with adjustment of the IC. Is it that big of a deal?
Rules are set in stone. That is unless we need to add clarification or I just plain F---ed something up.
 

jasjamz

THS Racer
Sep 30, 2004
5,353
225
63
Chicago area
I think you are in cahoots with my chassis guy. Guess I have to change uppers so I can race! No biggie but I will vote they are allowed next year to get them off the storage shelf!
 

TurboTnZ06

Go on red!
May 7, 2002
3,415
242
63
FL
I don't get it, front mount intercooler but no external pumps? Nothing screams race car more than a front mount. Was hoping it'd be closer to TSA than THS/TSM. Good luck guys! Any class you fit is in fun to race though.
 

wantattype2

Member
Sep 24, 2010
192
11
18
Toledo, Ohio
I don't get it, front mount intercooler but no external pumps? Nothing screams race car more than a front mount.

I agree, I personally would like it to be a SLIC class. But increased participation is the goal, nobody wants to run in a 3 or 4 car class.
I think we need to give the new rules a chance and thank Bill for all the work he has done.
 
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TurboTnZ06

Go on red!
May 7, 2002
3,415
242
63
FL
I wasn't knocking the class, it'll be awesome for anyone not wanting to go up against full on race cars like we have in THS, I thought TSA was a cool concept, I built my car inspired by it. I didn't really see any other racecars with a semblance of the stock shield and SLIC except TSA, and every one pretty much runs a front mount. I know SLIC are just as capable with alky as a front mount, and the 62 is the limitation, plus the SLIC was already done in TSA.
 

Phoneguy

Cometic HG stress tester
Aug 27, 2002
6,135
620
113
56
O'fallon MO ( near St Louis )
Seems like THS lite ...

Basically a smaller turbo . Classes with too many rules lower the car count.

Aftermarket shifter is OK but not an external guage ?

Aftermarket sway bar OK but relocation control arms not ?

Bryan
 

Mr.Spool

Well-Known Member
Nov 6, 2006
4,282
553
113
My thought,limit then turbo size say 61or 62mm,bring the weigh up to a real street weight around 3700lbs any fuel system and any tire pretty much anything else and let them race.basically scale it chech compressor size and go
 

SloGN

I'm a ASSHOLE.....
Dec 25, 2003
3,542
241
63
40
Randleman NC
so no aftermarket alum heads ? TA or champion ? they have the stage 2 bolt patterns so they could be considered stage heads
 

Thumper

Active Member
May 25, 2001
599
36
28
Kentucky
Ta or champion aluminum are allowed in the 8 bolt configuration. Must fit/use factory lower intake manifold.
 

Thumper

Active Member
May 25, 2001
599
36
28
Kentucky
So empty bolt holes are illegal ???

Bryan
Na, we will say empty is ok, bolts/studs filling all of them will be illegal. We will allow both 8 or 16 bolt aftermarket aluminum heads but can use only 8 fasteners to hold them in place.
 
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