Sikky headers are on!!
03-21-11, 03:50 PM
#22
Well the car kept going faster and by the end of the day it went 12.49 @ 112, I was only able to get a 1.9 out of the street tires. I liked that this afternoon I went out and the first run was 12.56@ 111, then 12.51, then 12.50. After the 12.49 it was time to go home. I think the car has more in it right now. With the exhaust and port work as well as tires I'm hoping to get into 11's no issue. Ill post pics and details asap.
~Dv8
03-21-11, 04:27 PM
#24
There are pics of my header/exhaust with race cats install here but none of the CF was installed yet...
https://www.clublexus.com/forums/is-...rformance.html
I have some pictures of the intake manifold switch too, il put those up later this week after I get back on the dyno for the intake manifold.
Last edited by darbs242; 03-21-11 at 05:19 PM.
03-21-11, 06:06 PM
#26
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I do think the oem exhaust is still holding the car back compared to others set up's. I may be only one running oem exhaust still after header. I have 0 experience with a rwd car, which may not mean much to some. The car continued to go faster every run....Thats the big thing to keep in mind. I had to drive back to Dallas so I couldn't just keep running the car. I seriously doubt people run their best time the 1st few passes.
The car seems to be running better and better. I now have 850 miles since I did the install and the battery was disconnected. I am being told its normal for the Lexus computer to continue to adjust to the mods the more the vehicle is driven since the fuel trims are now off. There were several wrecks at tx2k11 this weekend due to what seemed to be a poorly prepped track, So hopefully the times you are all expecting are right there. I simply just didn't have the time or the correct tools.
03-23-11, 04:51 PM
#27
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I did not, but If you caught everything I have mentioned in the thread it may make better sense.
I do think the oem exhaust is still holding the car back compared to others set up's. I may be only one running oem exhaust still after header. I have 0 experience with a rwd car, which may not mean much to some. The car continued to go faster every run....Thats the big thing to keep in mind. I had to drive back to Dallas so I couldn't just keep running the car. I seriously doubt people run their best time the 1st few passes.
The car seems to be running better and better. I now have 850 miles since I did the install and the battery was disconnected. I am being told its normal for the Lexus computer to continue to adjust to the mods the more the vehicle is driven since the fuel trims are now off. There were several wrecks at tx2k11 this weekend due to what seemed to be a poorly prepped track, So hopefully the times you are all expecting are right there. I simply just didn't have the time or the correct tools.
I do think the oem exhaust is still holding the car back compared to others set up's. I may be only one running oem exhaust still after header. I have 0 experience with a rwd car, which may not mean much to some. The car continued to go faster every run....Thats the big thing to keep in mind. I had to drive back to Dallas so I couldn't just keep running the car. I seriously doubt people run their best time the 1st few passes.
The car seems to be running better and better. I now have 850 miles since I did the install and the battery was disconnected. I am being told its normal for the Lexus computer to continue to adjust to the mods the more the vehicle is driven since the fuel trims are now off. There were several wrecks at tx2k11 this weekend due to what seemed to be a poorly prepped track, So hopefully the times you are all expecting are right there. I simply just didn't have the time or the correct tools.
baseline stock air filter, removed cats and joe z intake tube is 350.48whp and 308.87wtq
sikky headers oem exhaust still= 375.02whp and 353.16wtq.
Dyno was a dynojet, base line temp was 71.30 degrees and today was 84.29 degrees.
Over all the oem exhaust is still holding the car back big time, but Im ver happy to see a gain like this still using oem mufflers.
03-23-11, 05:01 PM
#28
Dyno was done today since I have put 1100 miles on it since the install.
baseline stock air filter, removed cats and joe z intake tube is 350.48whp and 308.87wtq
sikky headers oem exhaust still= 375.02whp and 353.16wtq.
Dyno was a dynojet, base line temp was 71.30 degrees and today was 84.29 degrees.
Over all the oem exhaust is still holding the car back big time, but Im ver happy to see a gain like this still using oem mufflers.
baseline stock air filter, removed cats and joe z intake tube is 350.48whp and 308.87wtq
sikky headers oem exhaust still= 375.02whp and 353.16wtq.
Dyno was a dynojet, base line temp was 71.30 degrees and today was 84.29 degrees.
Over all the oem exhaust is still holding the car back big time, but Im ver happy to see a gain like this still using oem mufflers.
03-23-11, 05:07 PM
#29
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All pulls in 6th gear. Is that the Correct gear to dyno in??
Never heard of dyno warm up before even on my drag car but the wheels were rolling for 5+ min before the pull today... is that what you mean?? Remember Im in Texas everything is Hot right now lol
Last edited by Mitch08ISF; 03-23-11 at 05:14 PM.
03-23-11, 05:16 PM
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Dyno was done today since I have put 1100 miles on it since the install.
baseline stock air filter, removed cats and joe z intake tube is 350.48whp and 308.87wtq
sikky headers oem exhaust still= 375.02whp and 353.16wtq.
Dyno was a dynojet, base line temp was 71.30 degrees and today was 84.29 degrees.
Over all the oem exhaust is still holding the car back big time, but Im ver happy to see a gain like this still using oem mufflers.
baseline stock air filter, removed cats and joe z intake tube is 350.48whp and 308.87wtq
sikky headers oem exhaust still= 375.02whp and 353.16wtq.
Dyno was a dynojet, base line temp was 71.30 degrees and today was 84.29 degrees.
Over all the oem exhaust is still holding the car back big time, but Im ver happy to see a gain like this still using oem mufflers.
most of your power is being lost in the circled bottle neck. I still can't figure out why they crushed that merge..
