On the second chart you can see the RPM's (Top, Red Line) are getting all squiggly past 3rd gear...

I saw the same thing on another dyno'd turbo II only it was WAY more spirratic...

They were reading RPM from the ignition wires...

My question is...is this normal or are my coils weak?

 

Hmm.. Interesting. I would first try the spark plugs and wires before I look at the coils. The FC coils are known to be robust but I have known them to die so I am sure it is possible they are weak. I would also check the grounds from the engine to the chassis and the coils to the chassis.

 

i am not sure your dyno run didn't look very clean from the chart how did it feel on the dyno ?

 

A s5 TII should be making more power than that.

My COMPLETELY stock 91 TII netted 172HP 167-8ft/lb with 81,000 miles on the stock block/turbo.

 

The first graph is from a Mustang Dyno. It will show lower than a DynoJet, by about 10-15%.

 

I had no idea!

 

The run felt fine...

My friends felt fine too, he had a bad coil...his looked like this:



You can see that with the bad coil HP was definitly effected...

All these graphs are from a mustang dyno...

 

Wowsers! That is some seious breakup I would definitely take the time to check the grounds, wires, and plugs.

If you do that and hit the dyno again please post the results!

 

These engines are finicky of their spark plug (and wires) condition.&nbsp Even slightly used spark plugs (over 1000 miles) exhibit ignition break-up.&nbsp If you're using brand new plugs, there should be very little break-up.

If you were using a CDI box, you wouldn't see that.


-Ted

 

Wooohooo! With all my mods on my n/a 90, I'm making anouther 7rwhp than a T2. To think, I've done nearly everything possiable to my car....and a exaust with a FCD on your car would school me. Ahhh, the dark side of boost is calling me......CJ

 

Yea...I laugh sometimes when friends of mine with N/A's say that their N/A is faster than my Turbo II...

I just smile and say "yea but I am not running a full 2.5-3" exhaust, or an intake, and you also spent money on those headers!"

Just an Exhaust and an FCD away from schoolin them

You cannot withstand the power of the boost side!

 

p.s. not to mention advancing the timing on turbo cars produces ALOT more HP, I'd make sure my car is in tip top shape before a dyno tune....ie, plugs wires, plugs, idle, new vac lines ect...

pp13bnos get you gtu down to 2300 pounds are you'll be in the 13's

 

DOH!



-Ted

 

Well, I'm shure I'll be able to run deep into the 13s this year with it. I'll be running a little 150hp bonus. Via the blue bottle. CJ