Dyno Tuesday, Predictions?

crzyone · Post by **crzyone** » Fri Mar 07, 2008 12:46 am

My Fiero finally hits the dyno on Tuesday to get tuned. Putting it on a trailer and hauling it to the dyno in Edmonton. AFI Performance will be doing the tune. They work with the BS3 ecu, alot of domestics use this computer, especially LS1s.

Any predictions on power output?

I will be happy with anything above 260whp. Not aiming too high so maybe I'll be surprised. Car is running 91 octane fuel in it so we can advance the timing a little more agressive than factory. Going to be tricky though with no knock sensor.

Only mods are a free flow intake and a pretty good dual 2.5"exhaust system. Motor is an 03 Northstar for those that don't know.

Aaron · Post by **Aaron** » Fri Mar 07, 2008 12:50 am

280rwhp.

slow'n'steady · Post by **slow'n'steady** » Fri Mar 07, 2008 9:57 am

287.4 RWHP

CincinnatiFiero · Post by **CincinnatiFiero** » Fri Mar 07, 2008 11:19 am

255rwhp cause I am a hater. Whenever I've gone to a dyno numbers were way lower than anticipated, so I've learned to aim low haha.

Series8217 · Post by **Series8217** » Fri Mar 07, 2008 1:06 pm

280 if its a Dynapack. 270 if its a Dynojet. Not sure about Mustang dyno.. maybe 265 - 270.

jelly2m81 · Post by **jelly2m81** » Fri Mar 07, 2008 1:44 pm

180 HP if you get on one of those rigged V8 fiero dyno's............... :rotflmao:

Sorry, couldn't resist!

crzyone · Post by **crzyone** » Fri Mar 07, 2008 3:12 pm

jelly2m8 wrote:180 HP if you get on one of those rigged V8 fiero dyno's............... :rotflmao:

Sorry, couldn't resist!

Oh man, didn't think about that. :uhoh:

CincinnatiFiero · Post by **CincinnatiFiero** » Fri Mar 07, 2008 3:15 pm

Dyno dynamics would be down like 230-240.

crzyone · Post by **crzyone** » Fri Mar 07, 2008 3:20 pm

It's a dynojet.

http://www.afiperformance.com/afiservices.html

Shaun41178(2) · Post by **Shaun41178(2)** » Fri Mar 07, 2008 5:50 pm

are you actually getting it tuned or just making some runs? Or are they actually going to do a pull, make some changes, do anotehr pull and so on?

I say base pull will be 210 hp.

If they will tune it I say final numbers in the 260 range.

I agree with jelly. its probably a rigged dyno.

crzyone · Post by **crzyone** » Fri Mar 07, 2008 5:59 pm

I'm going in for tuning. So 3-4 hours on the dyno or how ever long it takes to get it tuned properly.

My butt dyno says its not much over 140whp. Feels realllly bottled up. Will be nice to see what it can do.

Shaun41178(2) · Post by **Shaun41178(2)** » Tue Mar 11, 2008 12:27 am

can't wait!!! N star powa baby!

crzyone · Post by **crzyone** » Tue Mar 11, 2008 12:30 am

Yeah, should be fun. I'm working nights right now, so as soon as I get home I will be heading for the city. Going to be a looong day.

I just hope nothing breaks with its new found horsepower.

Series8217 · Post by **Series8217** » Tue Mar 11, 2008 3:57 am

Gooooood luck!

whipped · Post by **whipped** » Tue Mar 11, 2008 12:38 pm

You SHOULD be able to hit 290whp. With your BS3 problems, ehh... probably 230. :la:

g/l :thumbleft:

crzyone · Post by **crzyone** » Tue Mar 11, 2008 7:34 pm

jelly2m8 wrote:180 HP if you get on one of those rigged V8 fiero dyno's............... :rotflmao:

Sorry, couldn't resist!

We have a winner!!!!

175whp. For some reason my 2 left front cylinders are not firing. Will have to diagnose and go back. Not bad for a 6 banger....

This puts me in 4.9 and 3.4dohc territory.

Going to make sure the injectors are getting signal, make sure I'm getting spark and check and see if the injectors are flowing like they should. Who knows, maybe the BS3 is the problem?

:dontknow:

Shaun41178(2) · Post by **Shaun41178(2)** » Tue Mar 11, 2008 7:44 pm

with those guys supposedly being BS3 experts, I wonder whta they think about the BS3 being the problem.

They couldnt' find why the injectors or spark wasnt' firing? how long were you there?

crzyone · Post by **crzyone** » Tue Mar 11, 2008 7:48 pm

They didn't say the BS3 is the problem, but with the problems I've been having with it I would not rule it out.

Could be clogged injectors or who knows, didn't stick around for them to work on my car. They couldn't even get an rpm signal for my motor to see what kind of torque it was making.

I have a few things to do before I go back.

The Dark Side of Will · Tue Mar 11, 2008 8:15 pm

Wire up one of the ignition signals from the ECM (or maybe the tach signal) to an external connector. They *should* be able to change the inductive pickup that they normally use on a plug wire to a mating connector to get the ignition pickup.

(4/3) * 175 = 233... still got a bunch of tuning ahead of you.

whipped · Post by **whipped** » Tue Mar 11, 2008 10:10 pm

crzyone wrote: 175whp. For some reason my 2 left front cylinders are not firing. Will have to diagnose and go back. Not bad for a 6 banger....

How did you know it was those 2 cylinders? Was it running fine before? Surely you noticed a gnarly sound coming out of your engine if you were missing on 2 cylinders? :scratch:

Pull the ignition coil, throw some screws in the plug sockets, and crank it to check for spark on all 4 coils.

My guess is you probably have bad wiring to your coil packs. Swapped wire maybe?

If that checks out, swap the injectors to the other bank and see if the dead cylinders follow. N* injectors are notorious for being shitty. I don't know about 2000+ though, I think they use different injectors from the <99.