Ok i was recently contacted by a gentleman on the east coast reguarding a problem he had run into .. i will give you the short of it .
1.purchased a car from a shop owner "tuner" on east coast (will remain nameless for now)
2. tuner/seller tuned car before sale
3. customer drove car less than 300 miles...... horrible smoking loss of compression ( possible crushed rings ..lands IMO)
4. customer emailed the tune file to me to go over .... i gave my opinion just wanted some of yours as well ..

D16 sohc vtec
srp pistons/
aftermarket rods 9dont remember brand)
dsm 450 cc injectors
big 16g turbo
stock map sensor
bolt on exhaust etc


here is high cam timing map s300
now i will say this ... this car was running 17.5 psi on pump gas when it was sold to customer...so with that in mind take a look at the graph and please post your opinions.. i will copy and paste my email reply to him... just want ted to show him some others that i almost guarantee will coincide with my own ..
thanks for your time
Chris Whitfield

ps this car only made 290 ish hp on 17.5 psi!

 

What's the point of this post, he's running 17psi on a stock map sensor? What happens between 11 and 17psi?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">What's the point of this post, he's running 17psi on a stock map sensor? What happens between 11 and 17psi?</TD></TR></TABLE>

Exactly, I have already discussed this with him as well. It never should've left a shop on the stock map sensor and 17 psi IMO.

 

:S

 

One of two things happened.

1) The car was tuned to 11 PSI and the guy who bought it ran it to 17.5 and blew it up.

2) The tuner didn't know what he was doing.

Need to hear more of the story.

 

thank you guys i really appreciate the comments this is EXACTLY what i said no that being said let me ask this

which do you think is most likely
1. between 11-17psi the timing stays at what the value is in the last colum
or
2. the ecu has absolutely no idea what to do so who the hell knows where the timing/fuel is at ...

and yes i do not know everything dealing with this story.. only what was told to me by the plaintiff (haha)... so this thread is not to point blame but rather to back up my thoughts that if this car was running 17 psi with a stock map (then bingo there is the culprit)
Chris

 

ot but beepy what the hell is your avatar.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">What's the point of this post, he's running 17psi on a stock map sensor? What happens between 11 and 17psi?</TD></TR></TABLE> the point is to give this guy a little support if in fact this car was tuned on 17 psi by the seller / shop owner

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 93turbo16 &raquo;</TD></TR><TR><TD CLASS="quote">

Exactly, I have already discussed this with him as well. It never should've left a shop on the stock map sensor and 17 psi IMO. </TD></TR></TABLE> yes sir and i rec him to have you tune this thing when it gets fixed

 

The ecu stays at the 11psi column, it doesn't know you're running 17psi, the map sensor is already at 5v, it just stops adding fuel and taking away timing after 11psi.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">The ecu stays at the 11psi column, it doesn't know you're running 17psi, the map sensor is already at 5v, it just stops adding fuel and taking away timing after 11psi.</TD></TR></TABLE> gotcha so this thing was running 19 deg all the way up to 17 psi on pump gas as well as enough fuel for 11 psi @17 psi.... wheeeeeee


dont want to beat this to death just wanted the customer to hear it from multiple respected tuners .... yes tony i said you were respected

PS its hot as phuc in socal lately

 

Show me the high cam fuel map and i'll tell you if it was tuned at 17psi or at 11psi.

 

Is there a boost cut set in the hondata?

 

yes hot boost cut 20 psi but how the hell would it know it was ever at 20 psi ... it wouldnt

 

Exactly, anything over about 10psi boost cut on a stock map and it will never cut.

 

injectors are too small for the turbo
550's minimum for a big16g

 

Forget the injectors, can't get anywhere on a stock map sensor. lol

 

high cam fuel map lol

 

Judging by the rate of fuel increase with boost, i'm guessing that it was tuned to 17psi on the stock map, it's a deal where it'll run rich between 11 and 16psi, then be ok at 17psi. The timing is another story, no timing retard from the 11psi column.

The F.A.S.T. guys have been doing it forever, running 35-40psi on 3 bar map sensors because they didn't have the capability to use a 5 bar properly.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">Judging by the rate of fuel increase with boost, i'm guessing that it was tuned to 17psi on the stock map, it's a deal where it'll run rich between 11 and 16psi, then be ok at 17psi. The timing is another story, no timing retard from the 11psi column.

The F.A.S.T. guys have been doing it forever, running 35-40psi on 3 bar map sensors because they didn't have the capability to use a 5 bar properly.</TD></TR></TABLE> that to me is crap but hey what my opinion worth right.... stock sleeves no timing retard from 11 psi to 17.5 psi..... on pump gas TIME BOMB... thanks for the clarity tony .... have a wonderful day

 

Oh, i completely agree, it's a terrible way to do things. $80 is WAY too expensive for a map sensor! lol

 

sohc's dont like timing. with no timing retard from 11-17psi im suprised it lasted 300 miles

for what its worth, i ran 20psi daily with a 57trim t3/t4 on pump gas, with stock sleeves. But i tuned it on a motorola 2.5bar map sensor. running anything over 9-10psi on a stock map sensor is just retarded.

 

post the screen shot of the 3 bar map tables.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mase &raquo;</TD></TR><TR><TD CLASS="quote">post the screen shot of the 3 bar map tables. </TD></TR></TABLE>

They are basically non-exsistant.. around 22 deg in the last few columns.. looked to be not touched.

 

 

Theres no mystery with what happened here