<p style="text-align: justify;">Its been a few years now since we have had a pular in capable of quite so much power. The last one was from memory around 2006, owned then by customer and good friend Allen. That one achieved 463bhp on a 3071 turbo with as much boost as we could get through it as possible. In fact we disconnected the actuator pipe all together which gave us around 1.9 bar of boost after which the actuator spring was overcome and it would open by its self. That was very much an experiment and is obviously not the approach we would usually take, but none of the less, that record had been standing since that time and has only just now been broken on the SRR Dyno.</p>
<p style="text-align: justify;">So yesterday Bob from GTiR-R-Us arrived to us with a car to map. The basic spec as far as we know is a 3037 turbo,#external wastegate, standard ignition,#2.0 forged engine, quaife gearbox 750 ish CC injectors, Z32 AFM and an AVCR Boost controller.</p>
<p style="text-align: justify;">So on with the car. First we removed the Power FC ECU, and replaced it with a Nistune'ed stock OEM one. The reason? In our experience (and we have a lot here) the OEM ecu is more capable of controlling the car consistantly than the Power FC, its as simple as that. Oh and we can do things if we wish on the OEM ecu that are not possible on the Power FC as well
</p>
<p style="text-align: justify;">So onto the dyno it went, first stage is to calibrate the gear ratios which we did, but noticed unusually that at almost no load at all#at 3000 odd rpm#the turbo was producing 0.07-0.11 bar of boost. Interesting.. Thoughts were that perhaps the ignition was retarted but no, it turned out that the turbo combination was very efficient#and wanted to make boost with almost no effort at all.</p>
<p style="text-align: justify;">So a few calibration tweeks#with map and shortly we pulled our first full run of about .9 bar and made well over 300bhp,#a good start indeed.#A few more tweaks and checks we upped the boost again and power walked passed 400. This was looking interesting. 400 BHP on a pulsar is not at all uncommon. We have many 400+ pulsars to our name but achieving#it this easily is not so common. The only issue we were having was with#the boost stability. It had a boost creep and also#a boost 'spike' where the turbo becomes very efficient and the wastegate cannot control it at around 6000rpm. The#engine#is fine with this,#the ECU#just sees more airflow and#corrects to compensate its just not an ideal situation. So we then carried on and reached a safe limit at 1.6 ish bar boost then producing some 477bhp @ the fly, It may very well have done more, but the injectors were on their limits.</p>
<p style="text-align: justify;">Not a bad session at all!#</p>
<p style="text-align: center;"><img src="http://www.fusion-motorsport.co.uk/images/stories/cust/perl/25012011829.jpg" border="0" /></p>
<p style="text-align: center;"><img src="http://www.fusion-motorsport.co.uk/images/stories/cust/perl/25012011831.jpg" border="0" /><br />The magic (!) happens here...</p>
<p style="text-align: center;"><img src="http://www.fusion-motorsport.co.uk/images/stories/cust/perl/25012011832.jpg" border="0" /><br />Power#Vs torque @ fly.</p>
<p style="text-align: center;"><img src="http://www.fusion-motorsport.co.uk/images/stories/cust/perl/25012011833.jpg" border="0" /><br />Power#Vs torque @ wheels</p>
<p style="text-align: center;"><img src="http://www.fusion-motorsport.co.uk/images/stories/cust/perl/25012011834.jpg" border="0" /><br />Power @ fly VS AFR</p>
<p style="text-align: center;"><img src="http://www.fusion-motorsport.co.uk/images/stories/cust/perl/25012011835.jpg" border="0" /><br />Power Vs Boost</p>
View on our website
<p style="text-align: justify;">So yesterday Bob from GTiR-R-Us arrived to us with a car to map. The basic spec as far as we know is a 3037 turbo,#external wastegate, standard ignition,#2.0 forged engine, quaife gearbox 750 ish CC injectors, Z32 AFM and an AVCR Boost controller.</p>
<p style="text-align: justify;">So on with the car. First we removed the Power FC ECU, and replaced it with a Nistune'ed stock OEM one. The reason? In our experience (and we have a lot here) the OEM ecu is more capable of controlling the car consistantly than the Power FC, its as simple as that. Oh and we can do things if we wish on the OEM ecu that are not possible on the Power FC as well
</p><p style="text-align: justify;">So onto the dyno it went, first stage is to calibrate the gear ratios which we did, but noticed unusually that at almost no load at all#at 3000 odd rpm#the turbo was producing 0.07-0.11 bar of boost. Interesting.. Thoughts were that perhaps the ignition was retarted but no, it turned out that the turbo combination was very efficient#and wanted to make boost with almost no effort at all.</p>
<p style="text-align: justify;">So a few calibration tweeks#with map and shortly we pulled our first full run of about .9 bar and made well over 300bhp,#a good start indeed.#A few more tweaks and checks we upped the boost again and power walked passed 400. This was looking interesting. 400 BHP on a pulsar is not at all uncommon. We have many 400+ pulsars to our name but achieving#it this easily is not so common. The only issue we were having was with#the boost stability. It had a boost creep and also#a boost 'spike' where the turbo becomes very efficient and the wastegate cannot control it at around 6000rpm. The#engine#is fine with this,#the ECU#just sees more airflow and#corrects to compensate its just not an ideal situation. So we then carried on and reached a safe limit at 1.6 ish bar boost then producing some 477bhp @ the fly, It may very well have done more, but the injectors were on their limits.</p>
<p style="text-align: justify;">Not a bad session at all!#</p>
<p style="text-align: center;"><img src="http://www.fusion-motorsport.co.uk/images/stories/cust/perl/25012011829.jpg" border="0" /></p>
<p style="text-align: center;"><img src="http://www.fusion-motorsport.co.uk/images/stories/cust/perl/25012011831.jpg" border="0" /><br />The magic (!) happens here...</p>
<p style="text-align: center;"><img src="http://www.fusion-motorsport.co.uk/images/stories/cust/perl/25012011832.jpg" border="0" /><br />Power#Vs torque @ fly.</p>
<p style="text-align: center;"><img src="http://www.fusion-motorsport.co.uk/images/stories/cust/perl/25012011833.jpg" border="0" /><br />Power#Vs torque @ wheels</p>
<p style="text-align: center;"><img src="http://www.fusion-motorsport.co.uk/images/stories/cust/perl/25012011834.jpg" border="0" /><br />Power @ fly VS AFR</p>
<p style="text-align: center;"><img src="http://www.fusion-motorsport.co.uk/images/stories/cust/perl/25012011835.jpg" border="0" /><br />Power Vs Boost</p>
View on our website
