XxbmxlsxX
Well-Known LVC Member
yeah,......... srt8's r slow
ls v6 nos
- Thread starter XxbmxlsxX
- Start date
KBX said:
I'm assuming that his custom exhaust will outperform the magnaflow, which has dyno'd at 22+ HP increase over the stock exhaust for the '00-'02 V6, the stock to magnaflow increase for the V8 was 11HP because of the larger OEM pipes on the V8 vs the V6. The maggies also have mandrell bends, the OEM pipes did not, so at some points they were even less than 1.5" diameter. On top of that add an x pipe to replace the stock H pipe setup and it gets even more efficient.
There is still a lot of upside in the 3.0 if you have the time and money, it's been turbo'd up to 425 HP by Noble using the same block with VVT and upgraded pistons, cams and rods.
XxbmxlsxX
Well-Known LVC Member
my exhaust is mandrel bent also my friend owns compare muffler near st louis.
XxbmxlsxX
Well-Known LVC Member
ive been trying to get ahold of the scat crank and all the forged goodies for that damn noble, but nobody will sell them , its sucks.
K
KBX
Guest
Fla02LS said:
Mine is HERE.
322RWHP and 339RWTQ on a low reading dyno isn't too shabby. The real numbers are probably closer to 340RWHP and 360RWTQ...
^....Not a poser...
I am just messing with ya Fla02LS.
K
KBX
Guest
Fla02Ls, I do think that you do tend to come off as being a little prejudicial about other peoples aspirations of power with their LS. I do not mean this as a flame to you but I do mean it as constructive criticism. I usually don't see the point in people modding their Honda's with wings or to go fast or anything because I don't think it is worth it. Nevertheless I still hold my tongue in respect for that persons opinion. Sometimes you come off a little abrasive when referring to people who mod their cars. I suspect that is why some people tend to treat you as if your some sort of "dickhead".
That is just an observation. It doesn't have much to do with this particular topic.
That is just an observation. It doesn't have much to do with this particular topic.
You are 100% correct sir...on more than one point. Yes i look at the way people treat their LS the same way you may look at a honda with wings. Very good comparison. But unlike you i do speak my mind, in person and in a forum like this. Sorry. When i read something my fingers are quick to type my response and feelings. Now, i tend not to diss peoples choice in speakers, or rims, or other stuff of a individuals style, but when it comes to racing around like an idiot i speak up, when it comes to nonsense rambling by a few on engine mods and stuff i speak up. Am i abrasive...yes. Good comparison, Howard Stern. For the most part he speaks his mind but its usually the reality of a situation. Some see him as a dickhead, others listen and identify. And like him i dont care if people like it or hate it.KBX said:
Alright..putting aside the ranting, according to your dyno i have some questions now. And yours is the only correct dyno sheet i have seen thus far even though you dont have a baseline stock run. With the run using just your cai and tune it pulled 230 hp. Am i doing the math wrong or does that still put it very close to the stock 280 bhp? Like +13 hp and 6 ftlbs
XxbmxlsxX
Well-Known LVC Member
what are the gains on the "cai" you guys are using? dont you think it would be better if the filter was outside the engine compartment? isnt that what the cold air intake is?
jumpman6235
Well-Known LVC Member
i thought putting too much air would actually do more harm than good
402777LS said:
Really?? My LS was the development car for the Magnaflow. They had the car for a week while my wife and I were in Hawai'i. They (Brian at Magnaflow, the guy who ran the dyno) told me they got ~15hp from their exhaust. Granted, it was a warmish day in April when the car was dynoed, but will 75° equal 7+hp?? I don't know for sure, but I think that's a lottle optimistic.
XxbmxlsxX
Well-Known LVC Member
i thought putting too much air would actually do more harm than good<----- isnt what the xcal is for to calibarate your fuel curve to the incoming air. or are they just generic tunes that arent really vehicle specific? if so can u connect the wideband to the xcal and dyno tune it yourself based on your specific needs? every car is going to be a little different usually right?
Quik LS
Dedicated LVC Member
XxbmxlsxX said:
right you can connect a wide-band to the XCal2 - use it to datalog onto a laptop using SCT's LiveLink software, That way you get all the parameters of the XCal and the WB O2 in one log.
To re-tune it yourself - you'll need to purchase their Pro-Racer software package.
XxbmxlsxX
Well-Known LVC Member
so the xcal comes set and thats it?
Quik LS
Dedicated LVC Member
it comes with three tunes - usually different levels of performance, shift points, ...etc
The unit can adjust some things - like injector size, ...
SCT has end-user software called EXtreme tune - but it is pretty course.
The best bet is to buy your unit from a tuner you trust and work with them to get the tune 'just right' for your car. They can e-mail you new tunes.
The unit can adjust some things - like injector size, ...
SCT has end-user software called EXtreme tune - but it is pretty course.
The best bet is to buy your unit from a tuner you trust and work with them to get the tune 'just right' for your car. They can e-mail you new tunes.
K
KBX
Guest
Fla02LS said:
Yes, you are reading my sheet right for the baseline run. That particular dyno reads low. That is why baseline with CAI and tune still showed up as only putting out what a stocker 03+ LS should. My LS really has around 255 rwhp (and runs the ET's to prove it) and close to 350rwhp on the juice. Besides the A/F which I used to tune my car with, I concentrated more on the difference of gain from baseline to 100 shot versus actual numbers themselves. Dyno's will read differently in different parts of the country and due to many environmental factors. While they can be used for comparative analysis between vehicles to an extent, I never count dyno numbers as absolute perfect representations of a cars true power. Unless the dyno is done in a controlled environment; which never happens.
K
KBX
Guest
XxbmxlsxX said:
If the tune is done right you don't need to recal for a CAI. The IATS will measure incoming air temp and the MAS will take care of metering the quantity of additional air moving into the cylinders. There is no need to mess with the A/F ratio for something so small. A lot of tunes that people get for their vehicles with basic mods are pretty much generic tunes. By generic I mean the same perameters are modified to get the basic results (though not the same amount) though they are specific to that model of vehicle and the PCM box code too of course.
In 99% of the peoples tunes in here the A/F hasn't even been touched. Spark timing, tire height algorithms(speedo), shift points, line pressure, speed limiter, rev limiter neu, rev limiter drive are the common ones modified with a basic tune. Some even more basic than that.
Only if you have the Pro Rcer Package tuning software can you do a full tune. To my knowledge only myself and another member have it in here. Of which I believe only I am currently using mine. The end user basic stuff that SCT offers (extremetune or on-device.ll3 format) is meant to give ever so slight end user adjustability but not the ability to really tune a vehicle from the ground up. That e-tune stuff and on-device are meant more for smaller changes to comfort and preference like shift points, rev limiters, timing retard, minor minor A/F adjustments (MINOR) and stuff like that...
With these PCM's and how long they take to reprogram that is why the advantage REALLY goes to the wet nitrous setup. The reason for that is that you jet the fuel to get your proper A/F ratio when spraying nitrous. Then from there you only have to retard spark timing a little bit. Most on-device tunefiles offered by SCT tuners have the ability to retard timing but not advance timing. For nitrous this is perfect because you surely don't want to add timing. Run cooler plugs and your pretty much golden.
You could do a dry setup and tune for it through the stocker fuel system, but you would max the stock injectors quickly. And it takes 10-15 minutes to upload a program to these computers so that would be a PITA in itself. IMPO wet is the only way to go with these cars.
I think the environmental issues are also why my experiences seem to be different than others. Just today it was soooo damn hot and humid out i could feel a difference in the drivability and performance. I'd still like to see some dyno results from someone who has done some runs with a stock car, then make some changes and do some more dyno runs. Thats really the only way to truly tell any gains. As far as the sensors and pcm ability to adjust, does it make any sense to disconnect the battery to allow a reset when making minor changes, ie. k&n filter?KBX said: