Umm...this shouldn't be a sticky. This shouldn't even be in the advanced technical forum.

- Brian

 

Not being a smart ass but a lot of times the difference between trapping 106 and 110 is the temperature, humidity and barometric pressure at the track. A 106 trap speed on a hot August night with high humidity will turn into 110 on a cold Novembert evening with temps in the mid 30's. Also when not comparing the same car or same track directly, elevation plays a role in trap speeds.

 

1. what is your MAF setup (gutted/ungutted)/arc2/vpc looking like?

VPC, stock intake piping

2. ARC2/SAFC/VPC settings

Gradual enrichment to +5% by redline, tuned by my patented assometer.

3. your o2 voltages throught the rpm band

No idea - not monitoring.

4. what year is your car?

94

5. your compression looking like?

No idea - never checked it

6. amount of boost?

16 psi pump (12.70s) or 19 psi race gas (12.50s)

7. pump gas?

see above

8. did you do an intake pressure test on your car prior to these runs?

Never checked for leaks

9. what spark plugs and gap?

NGK copper at .028

10. Stock coils/ignition?

yep

 

I think a lot more than you realize. I have less mods than you including fuel and I probably weigh more than you. I also have a higher trap.

There's a lot of variables that you can't really "weigh" to make a good sound judgement. Just the tuning alone, can make a huge difference. Compare with others. Also, find a really good tuner and have them personally look at your car.

-Shawn

1. STOCK
2. STOCK
3. .88-.92 (3-4K) (.92-.96 (4K-redline)
4. 96 VR-4
5. No idea.
6. 15.5-16PSI
7. 94 w/ a bit of 100. Around 95 octane
8. No
9. NGK Copper @ .3
10. MSD Super Conductor Wires

 

Trap: 108.12 but 107's were more common.
1. what is your MAF setup (gutted/ungutted)/arc2/vpc looking like? Stock with stock air box. K+N filter.
2. ARC2/SAFC/VPC settings. None
3. your o2 voltages throught the rpm band. Do not monitor.
4. what year is your car? 1995 VR4
5. your compression looking like? Never checked.
6. amount of boost? ~15.5 lbs peak with MBC
7. pump gas? Yes, 93 octane.
8. did you do an intake pressure test on your car prior to these runs? No
9. what spark plugs and gap? .034"
10. Stock coils/ignition? Yes.
Other: Temps low 60's to mid 70's. Track 424'. Stock cat-back
stock dp,stock cats. 3990LBS with me in car.
Wayne

 

I ran race gas and turned the boost all the way up which worked really well for me 109.5mph traps and it was running out of boos big time at the top end. Also, some cars are faster then others.

Sam

 

Trap: 108.12 but 107's were more common.
1. what is your MAF setup (gutted/ungutted)/arc2/vpc looking like? Stock with stock air box. K+N filter.
2. ARC2/SAFC/VPC settings. None
3. your o2 voltages throught the rpm band. Do not monitor.
4. what year is your car? 1995 VR4
5. your compression looking like? Never checked.
6. amount of boost? ~15.5 lbs peak with MBC
7. pump gas? Yes, 93 octane.
8. did you do an intake pressure test on your car prior to these runs? No
9. what spark plugs and gap? .034"
10. Stock coils/ignition? Yes.
Other: Temps low 60's to mid 70's. Track 424'. Stock cat-back
stock dp,stock cats. 3990LBS with me in car.
Wayne

[HIJACK]

104MPH trap before talking to you.

NGK copper @ .3/MSD Super Conductor and now 106.16MPH trap. Thank you.
[/HIJACK]

 

1. what is your MAF setup (gutted/ungutted)/arc2/vpc looking like?

ARC-2 with 83mm MAS, 7" Cone K&N

2. ARC2/SAFC/VPC settings

I forget

3. your o2 voltages throught the rpm band

.98-1.00v on pump (from 4k up), .95-.96V on race gas

4. what year is your car?

95

5. your compression looking like?

Beats me

6. amount of boost?

14.5psi pump (12.42@109), ~18-19psi race gas (12.1@109 riding revlimiter).

7. pump gas?

see above

8. did you do an intake pressure test on your car prior to these runs?

yes

9. what spark plugs and gap?

1 Range colder NGKs at .028

10. Stock coils/ignition?

yes


My best mph is 110.6, and i've done 110.xx one or two other times. That was with 16psi. Anything over that and I run into the revlimiter way before the end of the 1/4.

 

1. what is your MAF setup (gutted/ungutted)/arc2/vpc looking like?
Completely stock with a cheap $40 K&N knock off
2. ARC2/SAFC/VPC settings
Was too long ago to recall, poor tuning though
3. your o2 voltages throught the rpm band
NO CLUE
4. what year is your car?
92 VR4
5. your compression looking like?
NO CLUE
6. amount of boost?
1.1bar
7. pump gas?
92 or 93 pump gas
8. did you do an intake pressure test on your car prior to these runs?
NOPE
9. what spark plugs and gap?
Not sure at the time.
10. Stock coils/ignition?
YES

I ran a 105.57 with a 5sp, 0 gallons of gas fuel, poor tuning, 1.8sec 60', at the time I had no egt installed and was not pocket logging, that was sometime last year I believe. Maybe 2 years ago now... I dunno.

 

TTT

 

Trap numbers are depends on the track condition, weather, altitude, driver,.....etc
Many BPU (intake,exh, dp, bc) are trapping 105-107mph and with upgraded fuel system, I've seen trap speed upto 110-111mph.

 

I honestly think it only takes BPU, fuel, and an ARC-2 to get 114mph traps on the stockers. I plan on finding that out next time i go to the track.

 

1. what is your MAF setup (gutted/ungutted)/arc2/vpc looking like?

Stock MAS, no gutting

2. ARC2/SAFC/VPC settings

At the time no fuel control, 100% stock fuel

3. your o2 voltages throught the rpm band

No idea

4. what year is your car?

1994

5. your compression looking like?

New OEM short block, had not checked it a the time

6. amount of boost?

15 PSI spike falling to ~10 PSI at red line... all cats in place, stock DP

7. pump gas?

Yes, 93 octane

8. did you do an intake pressure test on your car prior to these runs?

No

9. what spark plugs and gap?

Stock NGK Platinum @ .032

10. Stock coils/ignition?

Yes

I saw trap speeds as high as 105.7X MPH in this configuration. I developed a boost / vacuum leak after the 450cc injector install that has plagued me ever since. It knocked my traps from high 105MPH all the way down to 101 MPH.

 

Last year: 108.42 (once), mostly 106-107

1. what is your MAF setup (gutted/ungutted)/arc2/vpc looking like?
Stock.

2. ARC2/SAFC/VPC settings
Stock.

3. your o2 voltages throught the rpm band
Dunno.

4. what year is your car?
1994

5. your compression looking like?
Dunno.

6. amount of boost?
15PSI

7. pump gas?
93 pump

8. did you do an intake pressure test on your car prior to these runs?
No

9. what spark plugs and gap?
NGK 2 ranges colder Copper @ .032

10. Stock coils/ignition?
Yes


Didn't have the SAFC2, pump, clutch these runs.