HI there
Decisions decisions, I've got four plans.
Plan 1.
Let Forge fit their bits and bobs, take it to EVO tuner get walbro pump fitted and get it road mapped for best drivability. Will probably give an extra peak 10BHP from as it is now but upto an additional 40-50lb/ft with even earlier spool times as the tuner was explaining when they map the X they adjust the mivec, ignition timing, boost, fuelling etc. to get the best combination and can tune to car for exactly whats wanted, can even tune in loads of pops and bangs on the overrun if that is whats really wanted. Ideally I'd want the car to stay around 400BHP so keep the boost 26psi at peak tapering down to around 23psi. Thats probably about 1-2psi more than current at most, so marginal increase. Work on earlier turbo spool and stop the thing from running so rich and most of all keep it safe with an AFR in the 11-11.5 region at WOT right upto 7700rpm, stock its around 9 AFR so very rich. This in theory will give me a car that can do the 1/4 mile in circa 12.2s with terminal of circa 112mph.

With end result of circa 410BHP with 410-420lb/ft at 3000rpm. Its currently 397BHP with 365lb/ft at 3500rpm.
Total cost of this too me is £600!
2. Option 2, as above but purchase some 800cc injectors and fit, can do myself, cost circa £500. Purchase an FP RED Turbo about £1000 landed if I import myself, get it fitted and map for circa 460-480BHP with around 400lb/ft of torque. Cost about 2k, but this could put the engine on limited time. The Americans say this is perfectly safe, the UK guys think its a time bomb waiting to happen. I kind of agree with both coming to the conclusion what probably kills the engines is boost pressure, over 30psi and high torque numbers. As long as boost is kept low and torque sub 400lb/ft when pushing high power all should be fine, but then you loose drivability. Getting the engine forged is an option, I believe the cost is circa 2k and future proofs the engine towards 850BHP. This would mean one could then map the FP RED Turbo to approx 500-550BHP and well over 450lb/ft. Obviously this power level needs a new clutch, thats gonna be 1K fitted for something decent.
So spend 2k and how big power, low torque and a possible big bill, or spend 5k, get serious power, serious torque and reliability.
Cost 2k-5k, added resale value to car, probably 1-2k max, so instant 3k lost!
3. Options 3, get my bits fitted from Forge, take the bits straight off that I want, so FMIC, short shifter and intake, hoses, Milltek exhaust etc. Sell the car stock or trade it in against a newer 2009/2010 White FQ-360 GSR or a White FQ-330 SST GSR with sub 20k miles. Then re-fit all Forge parts, get engine forged, bigger turbo etc. etc.
Cost, circa 26-28k for car plus 5k in modifications. Total 30k ISH minus the trade-in from my car or private sale. As a trade-in I've been offered 20k by Mitsubishi which actually seems quite fair, I paid 23k a year ago, added 14,000 miles.
4. Continue looking at alternative cars, test drives etc. until something really lights my fire and I just have to buy. I am yet to drive Porsches but feel Housey is right that an C4S or C2S won't have the explosive power/delivery I crave, but a 996 Turbo could fit the bill perfectly, just a shame they are getting on now and could be money pits. Or the other option which has all the power I need, awsome SMG/DSG style transmission and huge tuning potential should I wish get myself an R35 GTR.
Porsche cost circa 35k which I could buy outright now, thank you RRL shares.

Or get a GTR for 45k ish and finance the remainder 10k which would be sub £300 a month so nothing. Only off putting with the GTR for me is its big and its not quite as precise as the EVO due to its weight but its hugely capable.
Or I could go crazy and get 997 Turbo but for some reason I have a car limit of 50k, even though I can afford more, I don't want over 50k of money in a car, maybe daft keeping car finance to sub £300 per month is a very nice option.
