dasic1
Have you considered what might happen to the return line if you add another pump?

By staging the second pump it may be possible to get away with the existing return lines, but there's a good chance that I would choose to upgrade them because even at full power my engine would probably only use about 60% of the combined flow of the dual pumps.

This morning I went to Advance Motor Mechanics to discuss the installation of a second fuel pump in parallel, because of the differential fuel pressure drop that I've seen in the data logs.
 
They asked me if my Turbosmart FPR1200 is a 'V2' (version 2) unit, and I said no. 
Then they mentioned that they've had the same problem on a number of cars with older Turbosmart FPRs, and they were always able to solve the problem by changing to a V2 unit. This must mean that the advertised 1:1 ratio (fuel pressure increase vs boost increase) wasn't entirely accurate with the older Turbosmart FPRs. 
 
This could explain why my differential fuel pressure was dropping even though my calculations said that the fuel pump shouldn't be at its limit. 
 
Therefore as a first step I'm going to swap out my FPR1200 for an FPR1200V2 and re-test the fuel pressure with data logging. If the fuel pressure behaves OK with the new FPR, then I probably won't need to install a second fuel pump!

I've got some good news and some bad news. 
 
Bad:
- I've started having intercooler piping issues again, but now it's on the throttle body side of the intercooler instead of the turbo side. I've already purchased the parts needed to fix it, so I just need to get the new design fabricated. 
- I hit a wombat on the weekend and did some pretty bad (but repairable) damage to the front of the car, as mentioned here:
http://www.mr2australia.com/mr2play/tm.aspx?m=128561
 
Good:
- During the Easter long weekend I attended the Toyota Nationals in Dubbo for the first time and had a lot of fun!
- I've just been told that my MR2 will be in the May 2016 edition of Fast Fours magazine! 

why go with justcar? just the price? im with shannons for the fact that i have choice of repairer, i have my car insured for $20k my premium is around $1000 a year and excess is only $600. 
 
definitely going to be buying the mag when it comes out.

Sorry to hear about the wombat incident. Very unfortunate for both parties involved there..
Wish you the best of luck in finding replacement parts cheap and quickly!

I saw the Toyota Nationals and would have loved to attend - I'm just not keen on such a long drive there.
Why do all the best events have to be in NSW dang it!

My mate at Express Motor Group just gave me a copy of the May 2016 edition of Fast Fours magazine. It has a blue Mazda RX7 on the cover. My car is on the last 7 pages.

JDM_GTwhy go with justcar? just the price? im with shannons for the fact that i have choice of repairer, i have my car insured for $20k my premium is around $1000 a year and excess is only $600. 
definitely going to be buying the mag when it comes out.

I haven't even tried Shannons to be honest. When I first got my MR2 I assumed that I was too young for Shannons to even give me a chance, but that was about 7 years ago so it could be worth me talking to them next time I'm up for renewal.
I'm happy with the price of Just Car insurance anyway (it went down heaps as I approached my mid-to-late 20s). I chose a pretty big excess to reduce the premium, but even if I didn't the premium still would've been quite reasonable.

Hoonsy
Sorry to hear about the wombat incident. Very unfortunate for both parties involved there..
Wish you the best of luck in finding replacement parts cheap and quickly!

Thanks mate. It'll get sorted, but it'll be costly.
 

Hoonsy
I saw the Toyota Nationals and would have loved to attend - I'm just not keen on such a long drive there.
Why do all the best events have to be in NSW dang it!

Even from Sydney it was about 6 hours. The distance didn't bother me, but the terrible road quality out west certainly did. The event was really fun though!

Very good point however 6 hours and just short of 10 is a very big difference haha
Especially when you've got to add a bathroom break every 10min for the missus!

All this insurance talk makes me wonder if I could find a better deal. I'm currently with Youi, which I felt was a pretty good deal (was on $75/month) for full comp. No pre-arranged cover amount though, apparently they do post-accident assessments

Damn man I'm sorry to hear about the wombat, I hope you find the replacement parts I wish I had some of the stuff you were after in my parts bins but I already checked :(

Also with Insurance I'll throw my 2c in. Just Car is cheap for a reason, my mate is currently seeking legal advice to appeal a decision they made to stop repairing his car when it wasn't fixed to the way it was before the crash. tl;dr for the love of god don't cheap out on insurance if you're an enthusiast, very least get preferred repairer.