Hey all
I have been having difficulties with the following :
6 months ago i let some people in the UK build me an L28 NA high compression engine with the following specs (i´m not a mechanic but I´ll tell you what they told me):
-F54 block with P90A head. block hot tank washed, decked&honed, head is gasflowed & ported, skimmed to both faces, fitted S/steel competition valves, 290degree cam, new lash pads and rocker arms. nismo forged pistons
I have a 6-2-1 Janspeed full exhaust system and a (custom) 6-carb manifold setup. compression 10:1 on all cylinders.
It produces a good 197 rwhp at 6300rpm (dyno tested), so I estimate around 220-230 on the head.
It´s not bad at all, but I would like to have more power. I would have to spend a lot more to get more hp out of the NA engine, which I am not willing to do. I have been thinking about turbo.
I would like your opinion on this, before I go charging in.
My view is that the pistons would need to be changed to lower the compression? Remove the carb system and add a stable EFI, add a turbo + intercooler & electrics. Does this make sense?
Could someone help me on this and if possible, give me a estimate price tag. My goal would be around 300-340 rwhp.
I have searched on this, but did not anything that started from a built NA engine..
this is a pic of my current setup:
http://i813.photobucket.com/albums/zz51/H3nrY_/Datsun%20260Z/P1010061.jpg
http://i813.photobucket.com/albums/zz51/H3nrY_/Datsun%20260Z/P1010060.jpg
Thanks
Hendrik