holy shat...that is not right!!

But, some things could have a factor on the #'s:
- what boost level was this at?
- was the car even tuned?
- there could be boost leaks, not like you dont know that
- just needs a tune up?


A few questions tho, was this pump gas?? and why did you say plugs, when was the last time you changed them? Are they NGKBPR7ES's, if not, you'll need those

 

What turbo is in there? What psi are you running? What does you timing look like? Is that 260hp at the wheels? if so that is not horrible for a smaller turbo.

Remember the stock rating for a 2g is 210hp at the engine. So with about 18% loss, stock power is about 172whp. your are 88 hp over that, or about 50% more than a stock 2g...as i said not horrible.

 

looks like he's running a t3/t4 50 trim at 19psi on pump gas.

I don't see that he edited his thread anywhere, y'all need to read a little better

Rob

 

Thanks SVTRob... the car was tuned by Aerocomp dynamics, the timing was low(10) but there were no signs of knock.

Chicago_DSM- the tuner suggested changing the spark plugs but other wise didn't have much of an explaination

I actually might have the logs from the runs I will check.

 

Here is a log Conditions from dyno print out : 91 degrees 38% humidity. With basically no cooling between pulls

Time,RPM,Timing,O2 1 Bank 1
2543.0,20.0,0.96
2609.0,18.0,0.96
2676.0,17.0,0.96
2750.0,17.0,0.96
2816.0,16.0,0.96
2895.0,16.0,0.96
2973.0,15.0,0.98
3063.0,15.0,0.96
3141.0,14.0,0.96
3223.0,13.0,0.96
3309.0,12.0,0.96
3406.0,12.0,0.96
3523.0,11.0,0.96
3605.0,11.0,0.98
3711.0,11.0,0.98
3824.0,10.0,0.98
3938.0,10.0,0.98
4055.0,11.0,0.98
4195.0,10.0,0.98
4328.0,10.0,0.98
4469.0,10.0,0.98
4586.0,11.0,0.96
4730.0,12.0,0.98
4859.0,14.0,0.98
4980.0,15.0,0.98
5117.0,12.0,0.98
5254.0,12.0,0.98
5352.0,13.0,0.98
5496.0,12.0,0.96
5617.0,14.0,0.96
5727.0,15.0,0.98
5844.0,15.0,0.96
5953.0,15.0,0.96
6063.0,16.0,0.96
6184.0,16.0,0.96
6293.0,16.0,0.96
6387.0,17.0,0.96
6488.0,16.0,0.98
6590.0,17.0,0.96
6672.0,17.0,0.96
6781.0,18.0,0.96
6867.0,17.0,0.96
6965.0,18.0,0.96
7023.0,19.0,0.96
7121.0,17.0,0.96
7203.0,18.0,0.96
7273.0,17.0,0.96
7340.0,17.0,0.94
7426.0,17.0,0.96

 

You should be able to do 300ish no problem. Shit I was doing 250's on my T28.

You need to do some maintaining to that car, replace the fuel filter, new plugs(gapped .028-.03) and ah, replace(clean the air filter).

Your low timing would indicate you are getting knock... it should be a bit higher.

Log your LFTF and STFT next time you take the car for a test run. They will indicate if the car is attempting to add more fuel to compensate.

 

I would lean it out a bit.

 

I would lean it out a bit.

The wideband looked nice and smooth all the way across at ~12
I think there is a much bigger problem than that anyway.

 

Your timing in the log looks fairly normal, maybe a couple degrees low.

If you were getting knock before the tune your ecu would have pulled timing and it will keep it that way untill it learns you can run more. You could reset the computer and see if the timing comes up, that *may* help.

 

Is it just me or you got knock at 5000 RPM? timing was climbing up to 15 then went back to 12.

 

Thats really low specially for a fwd. Boost leak, new plugs, wires and see what happens. Which 50 trim is it?

 

bull's eye to4b 50 trim w/ internal gate

plugs were changed yesterday
boost leak test is next on the list

It just seems with that low of a hp there has to be something hugely wrong with the car. SUCKS!

 

Do a compression test.

 

Oh, I didn't see what turbo at first either as I had clicked on it from the main page. The title line was truncated.

The wideband looked nice and smooth all the way across at ~12

Is 12 for the AFR not a bit high?

 

Oh, I didn't see what turbo at first either as I had clicked on it from the main page. The title line was truncated.



Is 12 for the AFR not a bit high?

12 is a tad high and while leaning it out a bit will help, I don't think that is the main problem

 

12 is a tad high and while leaning it out a bit will help, I don't think that is the main problem

12 is high and you want him to lean it out more?

 

12 is high and you want him to lean it out more?

1whitegst is the "him" in this thread But yeah that post is a bit confusing.

Mr. 1whitegst, do a compression test and this will let you know how healthy the motor is.

 

Yea replace lean with richen, regardless that is not what I am concerned about. Compression check this evening, as long as I can get out of work on time.

Mr. Him

 

What was your base timing set at when you made the dyno pulls?

 

I dont' know why you think you werent' seeing any signs of knock. Your log and timing tells me the car was knocking during that run.

Airflow is also low by looking at that timing map and it kinda looks like the turbo is spooling very slowly. When are you seeing your full 19psi?

 

I dont' know why you think you werent' seeing any signs of knock. Your log and timing tells me the car was knocking during that run.

Airflow is also low by looking at that timing map and it kinda looks like the turbo is spooling very slowly. When are you seeing your full 19psi?

The turbo starts spooling at 3500 and I am not sure when I hit full boost at the very latest 3.9K, I hadn't looked at the log from the pull until later, and I do see the knock. Without having a computer around while tuning it is impossible to see those timing numbers on the tiny Palm screen. Lame excuse I know

 

I agree with greenstreak. Definitely looks like a little bit of knock in the log. That timing curve has some dips..... Looks like spool knock.

1whitegst - Your narrowband shows to be rich and you wideband shows to be lean as hell. What model of wideband are you using? Your timing at the top of third is not too bad. I've seen much worse than 17-18 before. What octane if your pump gas?

 

Looks like spool knock.

???
defn please...

 

I'd tune for ~11.2. Maybe something is wrong with your turbo, that seems like it is spooling way too slow.

 

He said he gets full boost by 3900...sounds normal to me.