Welcome Patrollers and Friends! A resource for Nissan Patrol enthusiasts in Africa - LAUNCHED April 2009.
https://www.patrol4x4.co.za/
Thanks VaatjieVaatjie wrote:This is only my experience. I run currently only a free flow with no chip on my 4.8GL. Get better fuel consumption and lots of extra torque at low refs.
The free flow will give you the best result. Don’t kill me now. Stay away from chipping. Kosie will only take your money. Had my 2.7i chipped (dry run on Patrol 4.8GL to install the chip) and watched the whole process. First dry run was done with lights and aircon on. Obviously got a bad kw figures because these items take away same of the kw. Installed the chip and did a lot of running and tuning. Final run was done without the lights and aircon on and the guy that was helping him, put on a glove and stopped the wiscus fan from running. The figures were great compared to the first run. Paid Kosie and off I went. I was very disappointed. My fuel consumption went done to 5.5km/l. No real deference in performance.
Plug out the chip and install the bridge plug and my fuel consumption went up to 6.9-7km/l. Took it back twice to rectify the tuning but just sent my blood pressure though the roof. Maybe if Frans do it, it might make a difference. Be warned, my brother in-law with his 4.5 EFI Toy had the same experience.
I am also not sure about the chipping?. It seems to work better on underperforming diesels and not on high performance petrols?
I will keep everybody informed when I get around to do it Hi just bringing this back up, I am interested to bettering my fuel economy, as Unichip is not that great, but a freeflow is, I would like to compare the exhausts that we have here in the Middle East with the ones that you have. I would like to know this, so that I can find a middle section exhaust that is close to what is recommended by powerflow here, and not change the entire exhaust. I also don't want to increase any noise than what it is already....but I am not sure if that can be done to achieve better fuel economy or not.David wrote:After reading Tour de Frans's great recommendations for freeflows on the 4.5 and 4.8 I popped in by Roddy (Powerflow) in Bellville for a chat and quotation on a full freeflow system. I confronted him with questions about bottom end torque and the diameter of the front pipe. He asked me to put the 4.8 on the lift as he wants to check out the OE system on the car. His recommendation was to only replace the suitcase (big exhaust box) with a freeflow and keep the rest as is! Apparantly Nissan upgraded the header/downpipe section at some stage and he wouldn't change anything on the rest of the system as the pipe diameters etc. is already optimal and s/steel!