An I on the right track??

SY1616

SY1616

Donating Member
My syclone pulls like a freight train for the first 3-5 minutes of driving and then all of a sudden the power comes on much slower, almost like heat soak or that the trans isn't downshifting. What is causing this. I have checked my shurflo and it's operating just fine, intercooler is full and there appears not to be any leaks. I plan to check further for leaks using the innertube test and check all the other plumbing and install an new 180 deg stat. Recent tune up is fine. My gas is new 93 octane as well. Obviously (to me) heat is a problem since it doesn't fall flat until engine temps rise. Anyone have an idea what's up? Anyone is SE PA/NJ care to help???? I really want to solve this issue.

Thanks!! :tup:
 
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turrrbo6

turrrbo6

Member
Re: An I on the right track??

You didn't mention if the boost falls off or not. If it does it could be the wastegate puck not operating properly when it builds heat. I had that problem some years ago.
 
K

KETCH-UP

New member
Re: An I on the right track??

Put some good fuel in it, 2 gallons of 110 octane or 2 gallons toluene to full tank of 93. See if better. Do get laptop monitor asap.
 
James Thomas

James Thomas

"NO CLASS"
Re: An I on the right track??

Very first thing right off the bat..... You need TunerPro or Datamaster, at the very least an old GM Tec I (I got one off of E-bay pretty cheap). I prefer and recomend TunerPro. You gotta have a good scan tool to even start finding the problem / problems.

________
James
 
TYTILIDIE

TYTILIDIE

METH HEAD
Re: An I on the right track??

Better fuel or not, where can he really get with out being able to monitor data? Everyone is telling the answer but no one is listening.
 
TYTILIDIE

TYTILIDIE

METH HEAD
Re: An I on the right track??

NecroWolf said:
are you saying the lights are on, no one's home
Click to expand...

Something like that, hate to be an ass about it but no one can diagnose a problem that ahs 20 solutions with out a certain piece of testing equipment. There could be plenty of reasons for this problem to occur. Answer is right in fornt of you.
 
supersports10

supersports10

New member
Re: An I on the right track??

plain and simple.....datamaster, or tunerpro....... without being able to log what the heck is going on, and being able to share it with others, you might as well be throwing lawn darts at a sherman tank!!......ie: hopeless cause,....could be wastegate, injector duty cycle, engine temp, intercooler temp (iat will show this), o2 millavolts, tps%, FALSE KNOCK, real knock,.....the list goes on and on.

call scott at detroit turbo,....he will get you what you need.
 
turbodig

turbodig

Active member
Re: An I on the right track??

SY1616 said:
My syclone pulls like a freight train for the first 3-5 minutes of driving and then all of a sudden the power comes on much slower, almost like heat soak or that the trans isn't downshifting. What is causing this. I have checked my shurflo and it's operating just fine, intercooler is full and there appears not to be any leaks. I plan to check further for leaks using the innertube test and check all the other plumbing and install an new 180 deg stat. Recent tune up is fine. My gas is new 93 octane as well. Obviously (to me) heat is a problem since it doesn't fall flat until engine temps rise. Anyone have an idea what's up? Anyone is SE PA/NJ care to help???? I really want to solve this issue.

Thanks!! :tup:
Click to expand...

My guess is that there's an air pocket in the intercooler system such that it isn't flowing that well.

Also, could be an intermittently sticking wastegate (only sticks when hot, that kind of thing.

Tough to say for sure, without some scan data.
 
Windedv6

Windedv6

Ty n 10s
Re: An I on the right track??

What kind of elbow are you using for your turbo inlet. Some of the cobra els suck in when they get hot closing of the inlet. It happened to me. Ran fine for a couple of runs then would keep shutting down. All the scan tools and data logging didn't pin point it.

John
 
AUSyTyIN

AUSyTyIN

Unbusted $#it box
Re: An I on the right track??

It has a hard turbo to IC pipe (unless he changed it, but I doubt it)
 
JSM

JSM

Active member
Re: An I on the right track??

Windedv6 said:
What kind of elbow are you using for your turbo inlet. Some of the cobra els suck in when they get hot closing of the inlet. It happened to me. Ran fine for a couple of runs then would keep shutting down. All the scan tools and data logging didn't pin point it.

John
Click to expand...

Been there, done that. Not a big fan of cobra's now because of it.
 
SY1616

SY1616

Donating Member
Re: An I on the right track??

Ok, OK, I need a scan...point taken. Who in SE PA/NJ can help me. I am willing to pay for this!!
 
SY1616

SY1616

Donating Member
Re: An I on the right track??

AUSyTyIN said:
It has a hard turbo to IC pipe (unless he changed it, but I doubt it)
Click to expand...

Right on Austin, it's the SS type still.

You see the pics I posted this weekend. She's looking good!!! :tup:
 
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