Ebay Headers, good or bad? ill show you the dyno results!

by **shocar4** » Mon Dec 10, 2007 7:52 am

dawgs did you get your headers installed??? any difference?

by **Dawgz** » Mon Dec 10, 2007 9:18 am

DatSRBoi wrote:People needs to understand that a precat does not drop HP that much. His numbers is due to something going on, not his precat. No way a precat can restrict 30+whp unless his cat are really clog which means his motor has to be bad enough to clog it.

Throwing headers on doenst solve a problem, its a waste of money and more headache to trying to find whats wrong with the car rather modding it hoping it will work out clean. Im not saying it because I made the Datsrpipe and hate the ebay pipes, Im saying it because Ive been reading his last few post and all he seems to be doing is modding rather trouble shooting. A car without a CEL doesnt mean its running fine. For all I know I remember he telling me how he wired his EBC with a different model setup. Maybe he fried his ECU.

Dont rush into just buying something because you read its restrictive. Trouble shoot the car (even if it takes years, thats why its call dedication, R&D, and learning) until you find whats wrong.

Also just putting stuff on your car and tuning it every time is a huge waste of money. I wouldnt be suprise if in the end you spent enough money to buy a JP exhaust system. The most your precat will restrict is maybe 1-7whp. anymore then that on a 1mZ will say your cat was F up to start with.. but you didnt know that. You just modded it thinking your car is fine to start off with.

And the term as long it runs right its all good... Sure good you fixed it, but how did it happen in the first place? I wouldnt be able to live with as long it runs right Im happy.. When I had my solara it was, how is it running and what can i do to gurrantee it. My money was well spented and I loved my solara til I parted it partially to sell it. I dont regret spending the money I spent to know my car inside out.

Dont rush things because someone said its a good idea. I made that mistake. I dont care even if the worlds pro solara owner tells you to do this or that.. Welcome to the world of modding.

Good luck with your update tune. Like I say you will get some good gains even on ebay headers. But I feel like your rushing it and that you have no clue what your doing other then modding and hoping it comes out good. No top dog solara owner are always right. Not even me. Maybe youll be lucky, but I rather know fact then luck. Fact is knowledge while luck are just.... luck. Luckers in the end will craw to the fact for answers.

SOrry everyone for the long post. Havnt post much but I read everyones post every day. Im typing this on 3 hours of sleep ^_^

HMm, after all this, i just found this thread agian, and it was actually the pre-cats and cat being clogged that caused the hp drop, and yes it was a diffrence of about 30whp. So u really gotta understand that Pre-cats DO rob power.

by **Dawgz** » Mon Dec 10, 2007 9:23 am

shocar4 wrote:dawgs did you get your headers installed??? any difference?

I had a change of plans, i used the OEM Federal Headers and the Dat's ypipe along with a HighFlow MagnaFlow Cat.

The dyno results from before and after show the diffrence, no need for me to explain any further.

by **shocar4** » Mon Dec 10, 2007 9:26 am

what are you going to do with your ebay headers???

by **Dawgz** » Mon Dec 10, 2007 9:27 am

shocar4 wrote:what are you going to do with your ebay headers???

I sold them off previously to a member on here. And he wishes to remain anonymous lol...i think?

by **CamryOnBronze** » Mon Dec 10, 2007 10:43 am

^ i would too, Id be embarrassed :lol:

j/k

by **Dawgz** » Mon Dec 10, 2007 11:03 am

CamryOnBronze wrote:^ i would too, Id be embarrassed j/k

lol, he has his reasons, i wouldnt mind rockin ebay headers...the ypipe, is a diffrent story.

by **Sebas007** » Mon Dec 10, 2007 11:58 am

Wow nice improvement !! but examining your dyno graph I can see at 3600 RPM you have a difference of almost 60 pounds of torque...WTF and +40 WHP at 4250 RPM !! Also the high end on the most powerful setup go down really early compare to the other run...why such a big difference there ? Bottom line a huge improvement at the low end but stands less longer in high end...What do you think can explain that ?

What was your setup run 1 and then your setup run 2 ??

Sometime I wonder if the tech guy always gun it at the exact same speed between different runs...I'm talking of my own experience too

by **Dawgz** » Mon Dec 10, 2007 1:20 pm

The diffrence between the two runs on that dyno graph was the headers (cali spec to federal spec), and the ypipe and the Cat, so basically everything from the headers up to the mid pipe(but not including the midpipe)

Also, the power increase was very impressive, but the way ur reading the dyno graph, i think is wrong. Ur looking at the HP and Torque from Run 1 as Torque from run 1 and 2. the lines that start around the same rpm, are of the same run....if u get wat im saying.

by **Sebas007** » Mon Dec 10, 2007 2:14 pm

Ok nice !! I thought I was right...comparing darker lines vs lighter lines , cannot read the legend correctly because of the tiny fonts...anyway...now I understand I must compare darker lines between them and samething with lighter lines. There is a huge gain at 6000RPM +50WHP !!

And the average gain is pretty good ! Wow !

You're SC'ed, right ?

by **Dawgz** » Mon Dec 10, 2007 2:50 pm

^ yep, the 6k rpm power increase was crazy.

and yea, im sc'd....im at 220 now, same setup as the 200whp, but with a walbro 190 fuel pump.

by **94CoupeV6** » Mon Dec 10, 2007 3:08 pm

Wow good to see you got your problem figured out. Were you the same one on ToyotaNation that posted this same problem and outcome? Or was that someone else with the same problem and solution?

by **Dawgz** » Mon Dec 10, 2007 7:16 pm

94CoupeV6 wrote:Wow good to see you got your problem figured out. Were you the same one on ToyotaNation that posted this same problem and outcome? Or was that someone else with the same problem and solution?

Yep, that was me.

by **Sebas007** » Mon Dec 10, 2007 7:21 pm

Dawgz wrote:im sc'd....im at 220 now, same setup as the 200whp, but with a walbro 190 fuel pump.

How the fuel pump upgrade can give you 20 extra whp just itself ? I just wonder...Are your AFR are the same ?

I wonder also how some new headers (JPP setup for Gen 2) will react on a N/A engine. Hope to see some good result at the high end (let's say proportionaly to yours...a fraction of your average gain whp)

by **94CoupeV6** » Mon Dec 10, 2007 7:21 pm

That's crazy that you got that much power out of a revised exhaust.

Ebay Headers, good or bad? ill show you the dyno results!

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