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New times from last nite...not too bad, but could be better

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Old Oct 12, 2002 | 05:06 PM
  #1  
IROCZZ3's Avatar
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From: San Diego, CA
Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
New times from last nite...not too bad, but could be better

I made the 2 1/2 hour trip to Silver Dollar Raceway in Reynolds, GA. Couldn't hook for crap even with the Nitto drag radials, but managed to pull a best of 12.89 @ 106 w/ a 1.9 60 footer, wasting a 96ish Cobra in the process. This was with a weight of 3420 lbs with me in it and a quarter tank of gas. I just installed Spohn's torque arm and LCAs which helped get rid of most of my wheel hop problem from before, but wasn't able to use my ET streets yet because I'm still waiting for lug nuts. I'm gonna put back on my rear swaybar and use the ET streets next time, and possibly LCA relocation brackets. If I had my ET streets, I think I could of pulled a 12.40-12.50. But enough excuses for me, I ran what I brought!

I'm a bit disappointed in the trap speed though considering the mods I have (see mods in sig). I expected to trap about 109. The LS1s were trapping around 103-104. (I beat one of those too!). I still have a lot of tuning to do as I'm still using my prom burned for a ZZ3 cam. Overall though, I had a blast!
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Old Oct 12, 2002 | 05:14 PM
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rezinn's Avatar
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Yeah that mph is a little dissapointing considering stock m6 ls1s trap 106-108. Put on those LCAs and the et streets and you'll definitely pull some better times. 12.4 would be impressive after that run, maybe next time you'll line up with a Z06
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Old Oct 12, 2002 | 10:38 PM
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Car: 2015 Camaro Z/28 & 2013 Super Bee
Engine: LS7 and 392 HEMI
Congrats on the new times! How do you like the AFR/LPE 219/SR combo?

We have very similar setups, I have some questions and comments for you. I'm still experimenting with my setup and trying to take off every tenth I can, so maybe we can help each other on this.

Are you still using the stock throttle body? I put on an LPE 58mm tb and there was a noticable power gain in the upper rpm's with it over the stock tb. Not a "WOW" type of gain, but a noticable one none the less. 52mm would probably be the optimal size w/ this setup, but I bought mine used/cheap.

Do you think the 3500 stall might put you TOO well into the TQ curve? This combo puts out some massive TQ, which makes traction tough to find on street tires or drag radials. I have a 2200 stall and, on the street, I can spin the drag radials WAY too much. At the track, I didn't notice any wheelspin. I can't imagine how bad traction would be with a 3500. I have considered sending my Vigilante back for a 3000 stall, but have been thinking it might actually decrease my times b/c of traction loss, ESPECIALLY on the street. Do you feel the 3500 stall is helping you or hurting you?

You will definitely find some power in the PROM. I still have the first PROM we have burnt (waiting for a wide band O2 sensor to start really tuning). My .bin file is an ARAP .bin with a changed idle speed and injector constant. I hope to reduce my ET by a couple tenths playing with the PROM.

As for the LCA brackets, I recommend the Spohn brackets. I have them and think they have helped.

Finally, don't count out the little things. Check to make sure all the SR bolts are tight, make sure you have no vacuum or exhaust leaks and your header bolts are tight, your ignition system is up to par, your fuel filter doesn't need replaced, your cat is not clogged, do the "free mods", etc., etc.

I have no doubt you will see mid 12's.

Last edited by BuckeyeROC; Oct 12, 2002 at 10:41 PM.
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Old Oct 12, 2002 | 11:40 PM
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From: Warner Robins, Ga
Car: 1991 Camaro Z28
Engine: 350 TPI
Transmission: 700R4
How often do you go there? I was expecting to go last friday with a friend who wanted to run his LT1 vette. I heard the track was hooking pretty good, guy I work with ran some 9's. Did you use the far lane or the close lane? (from stands)
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Old Oct 13, 2002 | 08:06 AM
  #5  
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From: San Diego, CA
Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
BuckeyeROC,
I like this combo a lot! There's still a ton of tuning to be had out of it. I do have all the free mods and made sure all the basics were up to par. I hope to run as good as yours! I'm also using the LPE 58mm TB. I've had it for awhile and I've also noticed a gain at upper rpm's. Honestly though, I think my SLP cold air system might be hurting me slightly....as you know LPE's TB pushes the air ducting a lot more forward, and the 90 degree boot off the TB to MAF is slightly kinked (the airflow must make a drastic turn). I'm seriously thinking about going back to the stock IROC air cleaner...they seem to flow well.

As for the torque converter, it might be just a tad too much for the combo, but it would be perfect for a Miniram/CC306 combo . 3000 seems to be just right for our setups. I shift at 6000 and the rpms drop too around 4000, which puts me a bit out of the torque curve. I can't honestly say if it's hurting me or not. I spun just as bad with my old TCI 2400 converter, but I recover from it way better with the Yank. When I get my ET streets on, I'll be able to see if I can get 60 foot times in the 1.6 range.

I still need to get the prom burning and diagnostic equipment so I can start playing with the prom. The car does seem to lay a little flat just going into 3rd then picks up again....probably why my trap speeds are a little low. I don't know if that's cuz of the torque converter or the prom.

I'll be going back to track in 2 or 3 weeks....I'll let you know how it turns out!
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Old Oct 13, 2002 | 08:23 AM
  #6  
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From: San Diego, CA
Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
Originally posted by Ions91Z28
How often do you go there? I was expecting to go last friday with a friend who wanted to run his LT1 vette. I heard the track was hooking pretty good, guy I work with ran some 9's. Did you use the far lane or the close lane? (from stands)
I try to go at least once a month but that drive from Valdosta is just too long! I used both lanes but seemed to hook better on the left lane. I'm gonna go again probably Nov 1 and then one more time before they close Nov 22 for the season. Where you at in GA? Maybe we can meet up there one of these days.
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Old Oct 13, 2002 | 02:50 PM
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Car: 2015 Camaro Z/28 & 2013 Super Bee
Engine: LS7 and 392 HEMI
Originally posted by IROCZZ3
Honestly though, I think my SLP cold air system might be hurting me slightly....as you know LPE's TB pushes the air ducting a lot more forward, and the 90 degree boot off the TB to MAF is slightly kinked (the airflow must make a drastic turn). I'm seriously thinking about going back to the stock IROC air cleaner...they seem to flow well.
Yeah, I had that SLP setup too. I got rid of it and went back to the stock setup w/ 2 a/c duct elbows feeding it for "ram-air". I don't know if it actually helped or not, but it would seem that it is getting more air to the filters easier.

I'm going to video tape my runs next time at the track so I can see how well the car is hooking and if it bogs at all. I will make my decision on whether or not to send the Vigilante back for a 3000 stall. The vette guys are having much success at 3000. My biggest concern is that if I do go to a 3000, my street times will probably get worse, even if my track times are better, so I have to consider that as well. When I have G-Teched the car, I was getting 12.65-12.90 pretty consistantly on the street with poor traction. That was in hot weather after a lot of cruise time though.

Let me know how it turns out.
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Old Oct 14, 2002 | 01:13 PM
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Had a similar combo: 355/AFR 190's/SLP 1/3-4/3:73/ 2100 stall TCi Trans/B-M conv. Superram. Ran a best of 13.07 at 104.63 with a 1.92 60' on gatorbacks. 1/8 wads 8.3 @ 83. I used to get mainly 2.0 60's but the car actually was running slower that night than usual most runs were down 2 mph. I think i had pulled alot of timing out of the car. The headers were also smackin the frame conectors so the knock sensor may have pulled somemore out. I had a small hydraulic cam (non-roller) so you should be getting more out of your combo. You should definintely go with less stall maybe 2500-2800.

Also what was your 1/8 time & mph?

P.S. I used to bitch about my MPH as well.
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Old Oct 14, 2002 | 09:48 PM
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IROCZZ3's Avatar
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From: San Diego, CA
Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
TBurke,
My 1/8 mile was 8.26 @ 84.86....I also have a feeling my knock sensor is picking up false knock, but without any diagnostic equipment to verify it, I'm just guessing at this point.
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Old Oct 14, 2002 | 11:17 PM
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Not trying to kill the subject here....

Originally posted by BuckeyeROC

I have a 2200 stall and, on the street, I can spin the drag radials WAY too
Are you sure you have a 2200 stall? Precision doesn't make any "Vigilantes" in a 2200 stall? The lowest possible stall in the Vigilante series is a 2400 which is a #4. If you look at the part # on your recipt or box what is that #? Me thinks this is what you have and with your hp/tq combo it's actually flashing to about 2600. IMO, stepping up to a #0 which is an aproximate 2800-3000 stall would probably be your best choice.
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Old Oct 15, 2002 | 07:23 AM
  #11  
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IROCZZ3,

Next time you run disconnect the sensor and run super. You should pick up the mph.

I used to have TES 1/5-8 headers the car ran a 13.15 with a 2.0 60' at 103.5. I had horrible wheel spin as I used the stock tires. I never did any prepping the car other than a bag of ice. I would go straight from work to the track.

I switched to the SLP 1-3/4 and I could run usually 13.20 to 13.5 @ about 102 to 104 depending on traction. My best run was actually with the car feeling less powerful the whole night especially toward the end of track. I had messed with the car a few days earlier and retarded the timing. The headers banging definitely pulled out some timing.

Most guys running 8.2-8.3 1/8s are in the 12.80 range. Also most cars running 8.2-8.3's are also running much better 60' times as well.

I never got this combo sorted out and haven't driven the car in 3 years(I got pulled over for inspection and got hit with alot of tickets bought a new jeep and parked the car- I made an attempt again about 2 years ago the car now has a miniram and a paxton but is yet to run- hopefully next spring.)

Anyway good luck get it sorted out and you should run low 12's all day.
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Old Oct 15, 2002 | 11:14 AM
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Car: 2015 Camaro Z/28 & 2013 Super Bee
Engine: LS7 and 392 HEMI
Re: Not trying to kill the subject here....

Originally posted by David 91RS/Z28
Are you sure you have a 2200 stall? Precision doesn't make any "Vigilantes" in a 2200 stall? The lowest possible stall in the Vigilante series is a 2400 which is a #4. If you look at the part # on your recipt or box what is that #? Me thinks this is what you have and with your hp/tq combo it's actually flashing to about 2600. IMO, stepping up to a #0 which is an aproximate 2800-3000 stall would probably be your best choice.
No, I'm not sure. I ordered a 2200 per LPE's suggestion. It probably does flash higher. It's impossible for me to tell where it flashes b/c it just lights up the tires and revs to 6000 when you floor it off the line. At the track, I get traction so I will have to watch it there.
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Old Oct 15, 2002 | 11:37 AM
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Axle/Gears: 3.50 9"
With a 8.26 @84 mph in the 1/8 you must have a ton of pulling to the 1/8. With my old setup I ran a 8.02 with a 1.79 60'' at 88.9 mph. 3500 may be a little high, but get it to stick and I bet you will love it. Oh yea. I have a Coan 3200 in my new setup.


Chris

Last edited by NufNuffZ28; Oct 15, 2002 at 11:44 AM.
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Old Oct 15, 2002 | 01:47 PM
  #14  
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From: Warner Robins, Ga
Car: 1991 Camaro Z28
Engine: 350 TPI
Transmission: 700R4
I try to go at least once a month but that drive from Valdosta is just too long! I used both lanes but seemed to hook better on the left lane. I'm gonna go again probably Nov 1 and then one more time before they close Nov 22 for the season. Where you at in GA? Maybe we can meet up there one of these days.
I'm in warner robins georgia. I haven't been going much, but I do go here and there. Maybe next time I run, I'll wait until you run and we'll go meet out there. I haven't ran my car in almost two years, but I want to rerun once I get some work done to it first.
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Old Oct 15, 2002 | 02:05 PM
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Live in NJ. Used to go to Mercer U in Macon GA back in 90-92.
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Old Oct 15, 2002 | 05:50 PM
  #16  
IROCZZ3's Avatar
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From: San Diego, CA
Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
Originally posted by TBurke
IROCZZ3,

Next time you run disconnect the sensor and run super. You should pick up the mph.
I might actually try that this time although I've heard if you disconnect the KS, the ecm will go into limp home mode unless you install a 3.5k resistor (i think) in its place. I'll give it a shot anyway....thanx for all your suggestions!
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Old Oct 15, 2002 | 05:55 PM
  #17  
IROCZZ3's Avatar
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From: San Diego, CA
Car: 87 Buick GN
Engine: 3.8L (231 cid) V6
Transmission: 200-4R
Axle/Gears: 10 bolt G80/ 3.42
Originally posted by Ions91Z28
I'm in warner robins georgia. I haven't been going much, but I do go here and there. Maybe next time I run, I'll wait until you run and we'll go meet out there. I haven't ran my car in almost two years, but I want to rerun once I get some work done to it first.
Sounds like a plan...hope to see you around up there. But hurry up though...I'd like to see more 3rd gens up there on Friday nights. It's mostly 4th gens that are there!
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Old Oct 15, 2002 | 07:11 PM
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Zz3, you are correct. You need to replace the KS with a 3.9k Ohms reisistor or else it will throw a code.
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