Unlike previous cars I’ve owned, I’ve decided to make a good plan, gather the bits and fit them all in one go (in summer 2011 hopefully). My previous car was a little 1.3 hatch that I just kept doing more and more ridiculous mods to until it was fairly quick but achieved about 15mpg, like an angry, greedy little puppy!
My aim for the Volvo (having been looking for a manual 740 turbo saloon in good nick for 5years!) is for it to be fairly stock looking and not too bad on fuel, until I push a few buttons and all goes mental!
With this in mind I’ll be using the following controls:
•GFB Deceptor Pro in-car adjustable BOV (adjusts between recirc and atmos dump)•QTP Electronic Exhaust Cut-out
•Greddy Profec B Spec II Boost Controller (the only thing I have fitted and will be fitting until the big job)
•Megasquirt with switchable control between maps (need to read more about this – injection is fairly new to me!)
•Home-made HHO generator (to help fuel economy when in economy mode)
Bearing in mind I’m in the UK, the actual mods I HOPE to be able to be doing to the B230ET are as follows:
1)I have seen that the crank from a Volvo Penta marine engine is a straight swap to make the 2.3 a 2.5 litre and that I will need different pistons but not sure which?With everything considered I’m pretty sure I’ll also need some forged rods and pistons (as I believe my engine has the supposedly weaker 9mm rods?) but not sure which new ones I’ll need?
2)Custom steel exhaust (when I get the welder up and running again): 3” Downpipe leading to 4x motorbike cans of a suitable bore, with the cut-out valve somewhere in the middle.
3)Intercooler Upgrade: largest type of Isuzu NPR truck intercooler (27 row).
4)MAF Upgrade from a later 960 (1991-1994) to cope with the boost increase?
5)Ford Browntop injectors (are there any UK cars that come with the right ones?) or 850 T5-R ones – which are best in this case?
6)16V Head conversion as per thread:
http://forums.turbobricks.com/showthrea ... conversion
•Mildly porting the head and up-rating the cams if I can?
•I believe double valve springs are required, but not sure what is means?
7)M90L2 (If I can find one) Gearbox conversion to handle the power: Using clutch combo that is said to hold 450NM tourque – will this be enough for my mods?
8)Larger turbo but which would suit best with the other mods: 15G, 16G, 18T or 19T?
9)Would I need an aftermarket adjustable fuel pressure reg also?
10)Is there anything else I’d need or any other suggestions?
11)Any guestemates as to the final bhp and max boost I’ll be able to run with?
Thanks for reading and thanks in advance for any help.
Tim.