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Combo and problems please HELP

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kraus

Active Member
Joined
Jun 7, 2007
Messages
857
My combo

Turbonetics 61mm p trim bb turbo,60lb injectors,RJC Plate,255 pump,hotwire,adjustable regulator,TT chip,4 inch intake/maf,Maf translator,poston headers,3" torque tech exhaust,3" tig masters down pipe,with cutout,21 row gbody intercooler,gbody radiator,3000 stall, shift kit,3.42's,Scan master,28" M/T drag radial


Problem

Ran 14.01 at like 97 miles an hour,don't have slips was disgusted threw them away.(my bad) I added 10% at wot in tt chip to elimate 4.3 of knock I was seeing.But still get knock at gradual accel of about 3-4.3.At idle o2's were about 60-80 added 10% in translator now 135 lowest.Wot throttle o2's are 730-775.when do gradual accel go620 with 3-4 knock.Boost is at 17 on autometer gauge,manual controler is at lowest setting to acheive 17lbs.Running 93 octane all the time.I founf a leak in between header and turbo yesterday ,going to put copper gasket in tommorrow.Could it be something that simple to make it perform so crumy.One other thig I have a question about is,Orignal boost solenoid is hooked up to wires but no vaccum running to it.Does ther have to be or not.I unplug it sets check engine code..

Any more info need just ask I will test whatevr have to to solve this problem...
 
My combo

Turbonetics 61mm p trim bb turbo,60lb injectors,RJC Plate,255 pump,hotwire,adjustable regulator,TT chip,4 inch intake/maf,Maf translator,poston headers,3" torque tech exhaust,3" tig masters down pipe,with cutout,21 row gbody intercooler,gbody radiator,3000 stall, shift kit,3.42's,Scan master,28" M/T drag radial


Problem

Ran 14.01 at like 97 miles an hour,don't have slips was disgusted threw them away.(my bad) I added 105 at wot in tt chip to elimate 4.3 of knock I was seeing.But still get knock at gradual accel of about 3-4.3.At idle o2's were about 60-80 added 105 in translator now 135 lowest.Wot throttle o2's are 730-775.when do gradual accel go620 with 3-4 knock.Boost is at 17 on autometer gauge,manual controler is at lowest setting to acheive 17lbs.Running 93 octane all the time.I founf a leak in between header and turbo yesterday ,going to put copper gasket in tommorrow.Could it be something that simple to make it perform so crumy.One other thig I have a question about is,Orignal boost solenoid is hooked up to wires but no vaccum running to it.Does ther have to be or not.I unplug it sets check engine code..

Any more info need just ask I will test whatevr have to to solve this problem...

730 is too low for 93 octane and for some cars ive read that 17psi is pushing it on 93! try closer to 800. Sounds like ur controller is hooked up like mine, u do not need the line going into solenoid with the boost controller. what do u mean by added 105 into chip?
 
730 is too low for 93 octane and for some cars ive read that 17psi is pushing it on 93! try closer to 800. Sounds like ur controller is hooked up like mine, u do not need the line going into solenoid with the boost controller. what do u mean by added 105 into chip?

i meant 10% of fuel sorry corrected in post
 
gotcha. i ran a pretty similar combo as u at the track a few times, id imagine u should get low 13's in ur car depending on the launch. my best was a 13.07 on 16lb boost. it was my last run of the day and i actually lowered timing in third gear to about 16.2 from 18 and i picked up 3 tenths, what happened was that i eliminated the little bit of knock i was getting before, like 2-3KR! knock kills ur times!

whats ur fuel press. set at? idle o2's r way low for tt chip! should be close to 800.

may i suggest an alky kit for ur combo... it should rip pretty good!:smile:
 
What was the 60' time on those runs?

I agree... need to get 02's up to at least 800 until you can tune it more.... gotta gid rid of the knock.

16psi isn't going to shatter any ET records.... You'd be doing good on a stellar launch to get into the 12's at that boost level.

If your 60' time isn't sub 1.80.... you aren't going to get that good ET.... the first 60' is almost as important as the remainder of the entire run..... you'll never get a good ET with a sorry 60' time.
 
2.0 sixty which sucks and that was a 7psi launch anything higher it blazed em when i left the light.
 
Something is wrong!

Even with some knock you should be doing a low 13 easy.

Spring Cleaning time - make sure everything is right: sensors, vacuum lines, EGR, exhaust.

The ET amd MPH seem about right for a stone stock car but you should be at least a second faster.

Maybe something not set right with the MAF and chip. A tuning conflict???
 
Agreed, something is off...

Buy a powerlogger or borrow one...

LOOK at the data... then you might be able to figure this out without guessing quite so much!

Once you have a readout of what the engine did through out a run, you can better determine the cause of this problem.

You got a lot of money in there already, spend the $ on a powerlogger.
 
i was thinkin the same thing... and with a 2.0 60ft. on 7psi lanuch, somethings wrong there. my car launchs at 2 psi on street tires and i get a 2.0 60ft. with an unmatched turbo/converter combo!
 
I got 1.71 60' time on a stock turbo... stock longblock... on 3-4 psi launch...

You might have tranny problems... or converter problems... 7psi launch ought to be in the 1.6's

That alone would get you into the low 13's.
 
Your way out...with whats done to that car, you should be low 12s...

I can see 20PSI on 93 pump, no alky... and if its real cold out ~40* I can see 23-24 #'s
 
Your way out...with whats done to that car, you should be low 12s...

I can see 20PSI on 93 pump, no alky... and if its real cold out ~40* I can see 23-24 #'s

What intercooler are you running?

What timing are you running?

Lets make sure this is apples to apples.
 
Your way out...with whats done to that car, you should be low 12s...

I can see 20PSI on 93 pump, no alky... and if its real cold out ~40* I can see 23-24 #'s

That car is mids 11's with 100 octane and 21 PSI.

Also wondering how you can blow so much boost on 93 - how much KR?
 
didn't adjust timing on chip at all whatever it was set when got it thats wher I left it.Trans was rebuilt before I bought it,I put the converter in it,so I doubt it the tranny but maybe.
 
Your way out...with whats done to that car, you should be low 12s...

I can see 20PSI on 93 pump, no alky... and if its real cold out ~40* I can see 23-24 #'s

24 psi on pump gas?

I dont think it would be wise to suggest anyone to run 24psi on pumpgas, this should be interesting if he responds:rolleyes:
 
I get 4-5 degrees of knock at 17#, I cant see anyone running over 20# without added octane
 
Hey man, I too have seen that type of boost on pump gas...when my waste gate line blew off :eek: and it was not good

Ive seen alot of boost too, but the scan master used to take a shot of the pcm once every 3 seconds too!

Alot of guys cant even get away with 16psi on todays 91 octane without getting some knock. Id rather run it rich and not ride on the ragged edge all the time.
Maybe thats how alot of these cars have stayed together, having a safe tune and not trying to break it.

BW
 
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