Terrible times & trap speeds for my mods....Any idea's?
04-12-2010, 04:46 PM
#1
Terrible times & trap speeds for my mods....Any idea's? I went to opening day at my local track and I did horrible in my opinion.
All motor best pass 12.63@106.98 1.79 60'
75 shot of nitrous best pass 12.22@111.77 1.69 60' (launched on spray)
Mods:
VFN Sunoco hood
Texas Speed Tsunami camshaft
.235/.240 .649/.610 @ 111 lsa
TSP Off-road y-pipe
Ceramic coated Pacesetter LT's
3" catback exhaust
Racetronix fuel pump
UMI bolt-in subframes
BMR driveshaft loop
1LE driveshaft
SVO 30lb injectors
Complete Dyno Tune Dry Nitrous kit (75 Shot)
3800rpm Yank PT torque converter
New valve seals (maintenance)/titanuim retainers/pushrods
New roller timing set
Harland Sharp 1.7 roller rockers
Ported ls6 oil pump
Tuned By Straigh Line Performance
B&M Trans cooler
3.73 gears
SLP air lid/K&N filter
TR6 plugs
Rear seats removed and spare tire removed
My thought is that my trans is slipping like crazy? I just had it tuned at straightline performance a couple weeks ago and I made 360RWHP on motor and 416RWHP on a 75 shot on a mustang dyno with the converter locked.
I asked Mike @ straightline if the trans was slipping on the dyno he said no. This is my first auto car I am just trying to figure out the setup on it. Any ideas and input would be great.
All motor best pass 12.63@106.98 1.79 60'
75 shot of nitrous best pass 12.22@111.77 1.69 60' (launched on spray)
Mods:
VFN Sunoco hood
Texas Speed Tsunami camshaft
.235/.240 .649/.610 @ 111 lsa
TSP Off-road y-pipe
Ceramic coated Pacesetter LT's
3" catback exhaust
Racetronix fuel pump
UMI bolt-in subframes
BMR driveshaft loop
1LE driveshaft
SVO 30lb injectors
Complete Dyno Tune Dry Nitrous kit (75 Shot)
3800rpm Yank PT torque converter
New valve seals (maintenance)/titanuim retainers/pushrods
New roller timing set
Harland Sharp 1.7 roller rockers
Ported ls6 oil pump
Tuned By Straigh Line Performance
B&M Trans cooler
3.73 gears
SLP air lid/K&N filter
TR6 plugs
Rear seats removed and spare tire removed
My thought is that my trans is slipping like crazy? I just had it tuned at straightline performance a couple weeks ago and I made 360RWHP on motor and 416RWHP on a 75 shot on a mustang dyno with the converter locked.
I asked Mike @ straightline if the trans was slipping on the dyno he said no. This is my first auto car I am just trying to figure out the setup on it. Any ideas and input would be great.
Last edited by 2000SS1979; 04-12-2010 at 05:13 PM.
04-12-2010, 05:50 PM
#5
Nope it has never hit the limiter.
Also, the plugs are brand new just before the track passes.
It really just falls on its face after it gets moving. My old cam only 6 speed I could drive to 12.1@114 on a stock 10 bolt and some sticky tires.
I just cant pin point what is wrong with the car. I am to the point I am thinking about buying a brand new trans from one of our vendors to see if that takes car of the issue.
Also, the plugs are brand new just before the track passes.
It really just falls on its face after it gets moving. My old cam only 6 speed I could drive to 12.1@114 on a stock 10 bolt and some sticky tires.
I just cant pin point what is wrong with the car. I am to the point I am thinking about buying a brand new trans from one of our vendors to see if that takes car of the issue.
04-12-2010, 06:11 PM
#6
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Well I have a built trans from performabuilt and it is freaking awsome and I would recommend it to anyone looking for an auto trans. There prices arent bad for a trans, but it is still a lot of money. Try to do a little more diognostics before dropping that kind of money for something that only "may" fix it ya know. If its not hitting the limiter than it MIGHT be your converter. Not to insult you intelligence, but when your car is at normal operating temp check your trans fluid and just see if your low, happen to a guy on here a couple weeks ago and thats all the prob was. When my trans was slipping after I put in my first stall it was hitting the limiter and wouldnt even shift till I let off.
04-12-2010, 06:58 PM
#7
Well I have a built trans from performabuilt and it is freaking awsome and I would recommend it to anyone looking for an auto trans. There prices arent bad for a trans, but it is still a lot of money. Try to do a little more diognostics before dropping that kind of money for something that only "may" fix it ya know. If its not hitting the limiter than it MIGHT be your converter. Not to insult you intelligence, but when your car is at normal operating temp check your trans fluid and just see if your low, happen to a guy on here a couple weeks ago and thats all the prob was. When my trans was slipping after I put in my first stall it was hitting the limiter and wouldnt even shift till I let off.
The trans fluid was slightly over filled when I checked it. All my mods mentioned have less than 3k miles on them. It is like my car gets slower the more I mod it
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04-12-2010, 07:45 PM
#10
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Have you cleaned the MAF, changed spark plugs, changed fuel filter etc? I recently had a spark plug arching a spark to the header and was way down on power (bascially running on 7 cylinders). I would check and double check those things before you spend any more money.
04-12-2010, 08:06 PM
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I like what zracer said - you could be running off of 7 plugs. Could be a number of things though. Mike is a good tuner and will tune your car for power.
Just curious why the 6200 shift point? I would think that cam with an ls6 intake would still like to see a 6500 shift point or more?
Just curious why the 6200 shift point? I would think that cam with an ls6 intake would still like to see a 6500 shift point or more?
04-12-2010, 11:02 PM
#13
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I really thought it was your torque converter. IMO you had a great setup just maybe when you sprayed it was to much for the torque converter to handle cause it is soo loose? You still ran faster than me 
if you wanted to take a 6 speed down the track you should of asked I would of let you ran mine.
if you wanted to take a 6 speed down the track you should of asked I would of let you ran mine.
04-12-2010, 11:24 PM
#14
I like what zracer said - you could be running off of 7 plugs. Could be a number of things though. Mike is a good tuner and will tune your car for power.
Just curious why the 6200 shift point? I would think that cam with an ls6 intake would still like to see a 6500 shift point or more?
Just curious why the 6200 shift point? I would think that cam with an ls6 intake would still like to see a 6500 shift point or more?
04-13-2010, 04:49 AM
#15
I'd change the plugs and wires, air filter maintenance, fuel filter and air filter, and see if the tranny fluid smells/looks burnt. If it does the tranny is toast.
4Ljunkie is a POS transmission and really don't stand up for **** past about 400 rwhp. Once you hit that mark, they're gonna start failing, on what I would call a regular basis.
Get the maintenance stuff done, see if that makes a difference, maybe even swap the O2 sensors out too while you're at it just for the sake of doing it, and if that doesn't fix it, I'd start looking at the tranny.
Where was the RPM thru the traps and what was the MPH? Calculate it back and see what that comes out to for slippage, if it's over 12% then either the converter's way wrong/shot, or the tranny's shot.
If it's a stock 4Ljunkie, I'd point strait at the tranny.
It coudl also be that the camshaft needs a TON looser converter, which is very possible. the converter you have isn't gonna do **** for track erformance like you think it will, if you want that car to move, I'd look into something in the 4400 to 4800 range.
4Ljunkie is a POS transmission and really don't stand up for **** past about 400 rwhp. Once you hit that mark, they're gonna start failing, on what I would call a regular basis.
Get the maintenance stuff done, see if that makes a difference, maybe even swap the O2 sensors out too while you're at it just for the sake of doing it, and if that doesn't fix it, I'd start looking at the tranny.
Where was the RPM thru the traps and what was the MPH? Calculate it back and see what that comes out to for slippage, if it's over 12% then either the converter's way wrong/shot, or the tranny's shot.
If it's a stock 4Ljunkie, I'd point strait at the tranny.
It coudl also be that the camshaft needs a TON looser converter, which is very possible. the converter you have isn't gonna do **** for track erformance like you think it will, if you want that car to move, I'd look into something in the 4400 to 4800 range.
04-13-2010, 05:38 AM
#16
I'd change the plugs and wires, air filter maintenance, fuel filter and air filter, and see if the tranny fluid smells/looks burnt. If it does the tranny is toast.
4Ljunkie is a POS transmission and really don't stand up for **** past about 400 rwhp. Once you hit that mark, they're gonna start failing, on what I would call a regular basis.
Get the maintenance stuff done, see if that makes a difference, maybe even swap the O2 sensors out too while you're at it just for the sake of doing it, and if that doesn't fix it, I'd start looking at the tranny.
Where was the RPM thru the traps and what was the MPH? Calculate it back and see what that comes out to for slippage, if it's over 12% then either the converter's way wrong/shot, or the tranny's shot.
If it's a stock 4Ljunkie, I'd point strait at the tranny.
It coudl also be that the camshaft needs a TON looser converter, which is very possible. the converter you have isn't gonna do **** for track erformance like you think it will, if you want that car to move, I'd look into something in the 4400 to 4800 range.
4Ljunkie is a POS transmission and really don't stand up for **** past about 400 rwhp. Once you hit that mark, they're gonna start failing, on what I would call a regular basis.
Get the maintenance stuff done, see if that makes a difference, maybe even swap the O2 sensors out too while you're at it just for the sake of doing it, and if that doesn't fix it, I'd start looking at the tranny.
Where was the RPM thru the traps and what was the MPH? Calculate it back and see what that comes out to for slippage, if it's over 12% then either the converter's way wrong/shot, or the tranny's shot.
If it's a stock 4Ljunkie, I'd point strait at the tranny.
It coudl also be that the camshaft needs a TON looser converter, which is very possible. the converter you have isn't gonna do **** for track erformance like you think it will, if you want that car to move, I'd look into something in the 4400 to 4800 range.
Air cleaner looked brand new
MAF Cleaned with CRC MAF cleaner
New TR6 plugs gapped @ .035
Oil Changed
Trans fluid checked. Looked perfect considering this trans has only been in for about 3k miles. I however did not smell it.
I did get a SES light going to the track that never went off. I am not sure what the code is yet.
The intake is a stock LS1 intake for about another week or so. Then it will change.
I just thought even if the converter is not that great that I would still get better than a 1.69 60' on spray and 373 gears with that PT 3800 stall.
I was dead hooking all day.
I was under the impression that you can not spray a stall much larger than mine at all? Any truth to that?
04-13-2010, 06:15 AM
#17
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I would add some more suspension.Lower control arms,Adjustable torque arm,strut tower brace,panhard bar.U need to get them 60's down.My 02 SS A4 is making 320rwhp and pulling 1.63 60ft on Nitto 555R's w/ suspension work and simple bolt-on's.
04-13-2010, 06:16 AM
#18
**** I've sprayed on a 5500 converter. Anyone telling you can't spray on a big converter doesn't know WTF they are talking about.
Intake will help, I"d get that code checked see what it is, the car could have kicked into a limp mode or something from that, a/f could have went haywire, who knows what it is without reading it.
Intake will help, I"d get that code checked see what it is, the car could have kicked into a limp mode or something from that, a/f could have went haywire, who knows what it is without reading it.
