MRHD66

and neo heads flow more stock and fully ported too ( and thats even with over sided values in the RB26 head and neo with stock size)

yeh i Boost level, cam duration have alot to do with it

so what CR could i run with 100 ? 10;1 ??

got a united servo up here with 100 premium unlead too

why not get one of these the boilt up to the bottom half of factory plenum https://www.plazmaman.com/shop_itemdetail.php?itemid=136&cate=38 cheers

Water meth looks like the way to go then

i forgot thet E85 burns colder ;/ so it just wont work

well if i put 98 plus booster would be the same if not more octane then E85 and you can run something like 11:1 with turbo with E85

whats people thoughts one running 11:1 CR on a RB30det with 98 plus octane booster as i cant get E85 up here ( near forster NSW) cheers

http://www.lewisengines.com.au/category15_1.htm rb25neo head will flow more the a RB26 or RB25 and neo is $5000 cheaper

yeh thats true kelford do

any more updates on this setup

ive been doing alot of research since one of my mates told me to use a RB25neo as they got good flow i found .lewis engines can port a RB25 neo head 308CFM for $2000 and there RB26 headFully ported is 300CFM with bigger valves for $9000 http://www.lewisengines.com.au/category15_1.htm they need to make more cams support for the RB25neo cheers

will do mate

a interesting read that RB25 heads flow abit more up top but with more lift then the RB26 RB25 - STD valve size - 100% cnc ported Valve lift .100' .200' .300' .400' .450' .500' .550' Intake CFM 91 172 228 261 272 281 286 Exhaust CFM 76 136 176 188 192 194 196 RB26 - Accepts s.t.d. or oversize valves - 100% fully c.n.c. ported Valve lift .100” .200” .300” .400” .435” Intake c.f.m. 97 179 247 280 285 E xhaust c.f.m 83 146 173 188 192

i wonder the difference performance differences between the GTX and HTA are

this is awesome!!

any more pics or updates i knoow its an old thread

pm sent

putting it to rear as goin in a car that needs a rear sump

got this HKS oil cooler block just hope the rear RB25dipstick clears it as the RB30 one dosent

or RB25 dipstick and tube

WTB RB20 dipstick and dipstick tube

My mates HR ute RB25det powered not quite finished yet

you are just like me mate