My RR Graph (from rr disapointmet thread)

[nismoj]

Thanks to you all for the real info regarding exhaust last night, made for very interesting reading! Anyway heres my graph as requested, comments please. Still think I'm missing approx 20hp regardless of exhaust. Hope the pic is readable!

 

[gtirx2]

Cant really see to well as i am my phone but looking at that i would be checking the ecu to see if it has been chipped,it looks to be reving to 7800 there which gets me wondering.
Some of these random jap chips can cause alsorts of problems if you dont know what there mapped for,i would also check the base timing aswell.

 

[gtirx2]

Just seen the other thread and it say you have a nistune ecu,is/was this mapped to your car?

 

[pulsarmoley]

What does a standard ecu rev to as im pretty sure mine before the nistune fitment went to around 8200rpm before the limiter?

 

[Mad]

Hi,

I might be wrong but has the ecu been mapped for your car? I would expect quicker spool with a standard tubby and I don't like the curve around 6700rpm when it drops, raises then drops again.

 

[gtirx2]

What does a standard ecu rev to as im pretty sure mine before the nistune fitment went to around 8200rpm before the limiter?

Around 7500rpm is the standard limit i think.

 

[red reading]

7440rpm is standard limit, and for a mapped ecu that's not a good power curve.

 

[nismoj]

Thanks for the responses guys, I got the ecu from Ed at Fusion it was given a basic map based on the spec I gave him, but the map was based on a same spec car except for my standard exhaust, would it have a big impact on things?. It is very rich however as stated earlier, maybe as safety feature given he did'nt get the car.Boost held very even across the range once it got to a bar. I'm I expecting alot from 22yr old machine at the end of the day, but it does drive very nicely, its not the first i've owned.

 

[Mad]

Thanks for the responses guys, I got the ecu from Ed at Fusion it was given a basic map based on the spec I gave him, but the map was based on a same spec car except for my standard exhaust, would it have a big impact on things?. It is very rich however as stated earlier, maybe as safety feature given he did'nt get the car.Boost held very even across the range once it got to a bar. I'm I expecting alot from 22yr old machine at the end of the day, but it does drive very nicely, its not the first i've owned.

That makes a lot of sense. Ed or any good mapper would always be conservative on a map unless he is mapping the car. Put a better exhaust on, take a trip to see him in Surrey and I'm sure you will see vast improvements. It's not the age of the car that's the problem and the reason for high fuelling is the safety aspect. Correct fuelling will make a lot of difference, along with ignition timing.

 

[nismoj]

That makes a lot of sense. Ed or any good mapper would always be conservative on a map unless he is mapping the car. Put a better exhaust on, take a trip to see him in Surrey and I'm sure you will see vast improvements. It's not the age of the car that's the problem and the reason for high fuelling is the safety aspect. Correct fuelling will make a lot of difference, along with ignition timing.

I did get the basic software package aswell and it is 20deg before at tickover so thats fine. On the exhaust front does anyone have an AM elbow or exhaust from Aus, they seem to be the only crowd making new and exciting stuff off the shelf, don't know about noise though cause thats my real problem with aftermarket.

 

[Mad]

Speak to bob at gtirus, he may have one for sale. Buy a 2nd hand exhaust with a small back box and if still too loud, fit an extra silencer on. 2.5" should be enough

 

[Fusion Ed]

Base maps for mods have to make a lot of assumptions. It certainty wouldn't be road ready, but without seeing AFR graph, any advice is impossible.