WEnt to the dyno yesterday and results are not convincing

[tvmendoza]

First i want to say thanks to everyone who help me over the past six or eight months finally i have a result of all that effort.My setup:t3/t4 turbo( with t4 internals that is what my friend says, this might answer if he is right)Safc II370cc injectors from a srWalbro fuel pumpTurbonetics wastegate at 7 psiRFL turboXS BOVcustom made ic pipes( cold side 2.5, hot side 2.0)And finally the most important thing the super luper SSAC mani hahahaha(I did not bought it from ssac but it is the same style)

First run, results are 180 WHP and 436 max TORque( hahahahha i got scared)SEcond run we began tunning the safc results and we tell the guy to see how many psi are we putting. Results around 180 and more than 400 of torque on 3 psi3 PSi why 3 psi?????????????I got really mad so we thought that it was the wastegate but the guys of the dyno told us that if it was a new turbonetics wastegate it should not be that, so we did a 3rd one with another boost gauge, we got same result gauge also said only 3psiThe guys from the dyno told us that if we had a piggyback then we need a boost controller because the piggyback will not let us go more than 4 psi without one, i think it is a boost leak on the cold side(since the muffler guy made bends and then welds so maybe on the welds there could be a leak) So we continue tunning the car on the last run the final result was181 whp204 torque They fixed thatWhat do you guys think that can be?Is it good 181 whp with 3psi?the wastegate has two holes one for the boost controller and i did not block it should i do it??I did not really do anything about the egr should i do something?Those are all my concerns so if you guys can help me with something that will be great.ooooh and being reallistic it feels great to have the car again, being able to run it and i step on it yesterday and i left some black smoke i need to change spark plugs should i get colder ones(where can i get those). KA-T kick ***Sorry for the long postTona

[Florida240sx]

So you mean you just disconnected the EGR and didn't block it off?Major boost leak. Where is your wastegate signal being tapped from? FPR? Piggback not letting you run more than 4psi??doesn't mack any sense. I lov ehow their dyno was so accurarte 436rwtq...Guys dont' seem like they know to much.

[tvmendoza]

No i did not block it, that might cause the boost leak?? What should i block the line that was on the stock manifold??it is taken from the cold side of the turbo.It is the only dyno in el paso and they are not experts.

[GEO]

EGR needs vaccum

[tvmendoza]

And that means that i need to do what??

[fiznat]

First run, results are 180 WHP and 436 max TORque( hahahahha i got scared)

LOL!!! WTF haha those numbers are absolutely impossible except maybe I guess in a diesel truck with ridiculous gearing. Wow. Take your car to a different dyno.

That crap they fed you about the SAFC "not letting" you boost more is total BS as well... lol this wouldnt happen to be the same shop Mustangs_Suck took his car to, is it??

[tvmendoza]

i dont think it is the same, it is the only dyno on el paso.

[fiznat]

ahh no sorry, that was mostly a joke. Mustangs_Suck is a member here who took his KA-T to a shady mechanic who knew absolutetly nothing. Mustangs actually ended up fixing the problem himself and still dropping two thousand bucks.

Like I said, that crap about the piggyback is total made-up BS. The piggyback has nothing to do with mow much you boost, absolutely nothing at all (unless your tune is so bad the engine cant even rev).

Also, those dyno numbers are just silly. I have no idea how they came up with those numbers.

The fact that you are getting really wacky numbers, AND these guys are seemingly just making stuff up about your boost problem tells me that you really need to go somewhere else.

[NateDogg]

So, uhh..dude you need to do something about the EGR. Get us a pic or something to show us what you mean, otherwise describe what you have left of the EGR (if any) in more detail.

Fiznat: I bet his car has an auto transmission. They often are hard to dyno because of the torque converter.Oh and BTW, I got all the parts, thanks. One of the pipes is kinda crushed at one end but no biggie.

_nate

[tvmendoza]

Fisnat: I know it is a joke, you may be thinking that this guys are tunning my car, which is wrong it was tuned by my friend we just rent the dyno. They fixed the problem of the torque and i finished with 204.

NateDogg I cant post a picture until monday i think, i have to borrow the camera, let me try to explain what i did. The stock header of the 240sx has a pipe that goes to the egr i just remove that pipe and then put my mani i did not do anything else. I found a leak on the cold pipe and i will try to fix it by tomorrow. I think the problem is a boost leak or something aboug the egr. Please tell me what to do with the egrThanksoooh also i have manual transmission and i think the last numbers was ok. 181 whp and 204 torque if i get the camera i will show the graphs.

[1WheelWonder]

To block the egr off I used a scrap rectangular piece of thin steel about 3inches in length and 1 1/4 an inch in width, I then took the egr valve and matched the bolt holes to the rectangular piece of steel, drilled new holes, then applied silicone to my mounting area and bolted the new piece on. Fiznat has a write up on emissions removal on the intake manifold which shows his egr block off plate.

[DammitBobby]

Pic of the back of the manifold and you can see the EGR block plate I made.

[tvmendoza]

Ok i just read the fiznat's Emissions removal and assembly how-to. And i am a litle bit lost hahaha(sorry for that) First what is the function of the egr? I just have to block that thing? Is that going to help?

[NateDogg]

Did you put a gasket on that block off plate? What is your vacuum at idle? Should be about 20inHg

[tvmendoza]

My vaccum is at 15'sThis is the tube that was on the stock manifold, this is my idea cut the tube then block it, and then put it again so it block all the egr. Is that possible or do i have to remove the disk and everything.

[Florida240sx]

I "think" I read osmewhere you can put a nickel on the end that screw into the egr.and when you tighten it down it blocks it off...Would recommend gasket sealer all over it also.Someone else chime in on this method please...

[1WheelWonder]

Your vac is pretty low. I have heard of the nickel trick too, but the plate in the above picture takes like 10 mins to complete and install.

[uncle_louie83]

i used a quarter

but i also used silicone too...i took a piece of cardboard that had some sheetmetal plate inside of it....put the quarter behind it...siliconed that ***** like mad and put some 10mm bolts in with washers so they overlaped the quarter...worked great...hasnt leaked at all

[tvmendoza]

I am planning on cut it and then weld something to block it, but then you are telling me that i can leave the disk so i can only block that tube. I think i can do it by tomorrow and i will tell you the results.

[TravBear2]

TVM... I also live in el paso so if you need any help with anything just im me... MSN is [email protected]. Im up in the NE.

[driftin2trance]

holy crap!!! those numbers are crazy!!!

not tryin to be an @ss, but u should read why ur doing such a mod and what does it do before u just do it (talking about the EGR thing). i hope u get everything worked out and get some better "actual" numbers.

yea i heard the nickle thing too.

[C-Kwik]

Just a quick note. The 400 Tq figure is likely the actual torque reading on the dyno. We typically see the calculated torque that compensates for the torque multiplication that occurs through gearing. It would be really fun to see a 1st gear real torque figure. We would see somewhere on the order of 2100+ lb-ft of torque out of a stock KA.

[tvmendoza]

The error that they were doing is that they have to put a wire into the spark wire of the first cylinder, but they did not connected right. I just went for the wideband so i did not really care about the torque. The Hp was my problem but then i realized that i was only putting 3 punds of boost. Thanks For your input c-kwik

[JDMEnthused]

heh those first few numbers were pretty crazy but.. not blocking the EGR valve wasnt the smartest thing to do.. i mean you can block it off with a piece of thin but not too thin piece of metal ( or just buy a EGR block off ) not much at all.

[tvmendoza]

Hello, i blocked the egr on the tube, there is no licks but the boost remained the same. 3 lbs. CAn i have that many liks on my ic pipes or what else can i look for?

[adoboboy]

There can be many leaks!I would suggest doing a test leak. There is a write up on that somewhere involving PVC pipe caps air inlet, bike pump and a bottle of soap/water solution.I would have done this before putting on the IC and piping.

[tvmendoza]

Hello, i am sorry for taking that long for posting but here is what happend.i took my cold pipe and feel it with water there was like 5 small holes so my mechanic weld it again. Now there is no leaks. But it keeps boosting just ~3 psi. What else can it be? mmmm this should be sound stupid but here it comes. hahhahThe wastegate has two holes one for the signal and another for the boost controller. I do not have a boost controller so i did not put anything in that hole. That might be a leak??? What should i do with that. Thanks

[Jookmasta]

just wondering out of curiosity how long it took u to block off the egr? u didnt remove the intake mani did u?

[DammitBobby]

You should be running your signal to the side of the wastegate and leave the bottom port alone. Unless you are using a EBC. I believe you have the wrong wastegate spring. You might want to take it out and check the color spring and see what it is rated at. The other problem could be the wastegate seat is not fully closed or at an angle.

[tvmendoza]

I ran without tapping the egr like 2 days, i did not remove the mani i just tap it with the one tube.