installed HIGH compression pistons OMG

[boostedinaz]

good point... seriously... how high can it possibly be?

This "shop" he took it too doesnt even know and he quoted comression test numbers. I think our guess is as good as his.

Moral of the story: Dont let any one in Central America work on your car.

 

[95AWD_TSI_TALON]

From the sounds of it your "high compression pistons" are probably 2nd gen or evo pistons.

95AWD_TSI_TALON I'm not calling you a liar but it's very very hard to believe you are running 20 degrees of total timing and 33 psi from a t66 on pump gas. If you are you should have a new record for the most power made on pump gas and if thats the case congratulations. How do are you able to get so much timing without knock on pumpgas?
I think Dre made his 504whp run at 30 psi on his agp 50 trim with 5 degrees of total timing on 93 octane. 20 degrees of timing at 33 psi on a t3/t66 with 93 octane is just a little to hard to swallow. Can you post a log file from dsmlink?

Simple Dre was on a STOCK 7 bolt (cast pistons) if I remember correctly. Look at my mods list. I will check after I write this to see if It is still updated yet or not as far as my fuel system wise. But I too was surprised on how much boost I am running and even my buddy is surprised (primedTsi) we just kept turning the boost up 32 was about the peak I wanted to go. Any higher you could feel the gas wasn't burning correctly and knock would start to show (only 0.4 maybe 2 counts max). I will see if I can get my laptop online and post up a datalog.

Matthew
p.s.- I am running a stewart warner boost guage, not a crapy autometer.

 

[boostedinaz]

not a crapy autometer.

Yeah, stupid NASCAR, NHRA, IHRA, and a ton of other professional racing.

 

[GVR4592]

Dre was running a built 6 bolt when he made 504whp. I don't see how that has anything to do with the amount of timing you are running. I would try installing a different boost gauge and see if it is actually 33 psi

 

[95AWD_TSI_TALON]

Dre was running a built 6 bolt when he made 504whp. I don't see how that has anything to do with the amount of timing you are running. I would try installing a different boost gauge and see if it is actually 33 psi

I am running 32psi. Yes the boost guage is correct and the whole reason why DRE was so big was because he was on a stock 7 bolt bottem end! And he was running 5 degrees of timing and melting plugs in between each run. I know the story.............

 

[95AWD_TSI_TALON]

I don't see how that has anything to do with the amount of timing you are running.

Cast pistons are way more prone to geting hot spots and causing detionation. Which is why you will see built motors (forged) running more timing.
Matthew

 

[L2RTSiAWD]

Would someone enlighting me as to what wtf the point of this thread is besides arguing?

 

[Superbeast406]

Wow, all this talk about boost with high compression pistons, and no talk about thermal coatings.

 

[armandovivoni]

i opened the thread to let people know whats going on.to post updates, dyno numbers, 1/4 mile times. its been kinda slow cause I have had other problems. that have slowed me down and money comes out of my own poket.(like yesterday I had to pull the tranny to fix a hole the size of a 10mm soket.) but ill update as soon as I have something to update.

 

[GVR4592]

I just want to know what pistons are being used?

 

[memory-x]

Yeah, stupid NASCAR, NHRA, IHRA, and a ton of other professional racing.

im sure autometer special make theres. its like manufactories special make the stuff going to sema. they compete against other people performance/look wise to get that contract and advertising. in other words, i bet ahundred dollars i dont sell the same autometer gauges at my shop that nascar uses.

 

[armandovivoni]

well the pistons say on top. 63md or 63dm if you can find any info on them let me know!

 

[GVR4592]

Maybe the person or the shop that sold them to you might have some more info about where they got them. I'll look around and see what I find. Hopefully it's not a n/t piston.

 

[armandovivoni]

Im pretty sure they are from a N/T what non turbo I really dont know. neigther the shop. I didn't buy them from the shop. I bought a japanese 4g63 6 bolt. when my 7 bolt got crankwalk. when I opened the engine first thing I noticed is the pistons. cause I knew 6 bolts were 7:8.1 and this were not 7:8.1 they have a huge DOME. I know 9:1 are almost flat. so I took the pistons to the shop, and they had never seen them.buy the look of the piston he said they could be 10:1 or 11:1 but couldn't tell for sure. I could have just installed my 8:5:1 pistons from my crankwalked 7 bolt but I thought let me give this a try, I asked him if he could tune my car with this pistons and he said sure, 15-18psi mmax should be ok with your setup. So I go on and finished assembling the engine. cheked compression and got 225 on each cyl. with hks 272/272 cams. thats the begining of the story!

now before I finished assembling the engine I did extensive search for info on the piston and got nothing. I even asked here with no results. I sometimes look and try to find info on them. but nothing. maybe they are from evo but I dont think the evo has such a high comp.(225).

 

[GPTourer]

im sure autometer special make theres. its like manufactories special make the stuff going to sema.

They have different quality lines. The Pro-comps and Ultra-lites are the top of the line and are competition grade. The cute stuff like the Phantoms and Lunars are not.

 

[BrokenTsi]

Moral of the story: Dont let any one in Central America work on your car.

Amen to that. Oh man, do I have some horror stories.

 

[notractiongst]

Amen to that. Oh man, do I have some horror stories.

LMFAO whats wrong with ROCK parts that were assembld by mexicans
you damn tubeframe autocrosser O!!! (Inside joke)

 

[BrokenTsi]

LMFAO whats wrong with ROCK parts that were assembld by mexicans
you damn tubeframe autocrosser O!!! (Inside joke)

I wasn't happy to see Tortilla shells for gaskets and onion rings for piston rings. Not to mention salsa for assembly lube. Looked like my cylinder walls were honed with a sandblaster full of beans.

 

[tonygst]

Did we forget about DRE?

 

[ITSME4G63]

mine Is Biggere Than Yours, All Your Compression Belong To Us I Run 15:1 Beat That , Oh And My Wing Gives My 150000000 Lbs Of Downforce

 

[gixrman]

Wow, all this talk about boost with high compression pistons, and no talk about thermal coatings.

I was thinking that too stock EVO pistons with ceramic coated tops. Last alot longer than forged.

 

[Thomas91169]

mine Is Biggere Than Yours, All Your Compression Belong To Us I Run 15:1 Beat That , Oh And My Wing Gives My 150000000 Lbs Of Downforce

totally not needed. were having a very technical discussion about compression ratios and such. too bad youre too immature to know when not to speak.

 

[lo2210]

were being very MATURE with our remarks huh? You don't have to make remarks about his people its not called for. Let the guy experiment who knows he may be on to something

 

[madkane95]

all i hear is this can't work your a liar stop doing what your doing i am waitting for it to blow up . let the man do what he wait
he said he is going to show us info on what he is doing
if you look on this site there is a lot of info that you guys believe and say nothing about it even if is it wrong as long as he has evidence it should be all good
if this thread gets to off topic then there are going to close it and we will never find out if he is telling the truth like one of you said earler, who nows what if he is on some thing wright know. like most people when they try someting new you have alot of people saying that can't work. (ex our car running in the 13/12/11/10 then driving of the track to go home. if everyone followed what everyone said there would be no 13/12/11/10 even being maid there would be alot of 14/15/ and for you non drivers 16/17 running around.
let him find out if it wrong or not all i have to say look at shep and all he has gone throught people say he can't win, he can't do that, it going to blow, but if you look at the cars he runs against he is properly the one of the only cars that can be driven of the track if he wanted 4 life

 

[ITSME4G63]

I was thinking that too stock EVO pistons with ceramic coated tops. Last alot longer than forged.

yes, stock evo8 pistons work in our motors pretty good, a friend or two of mine ahs em.