Thread: 175WHP 12.5:1 but loosing 20WHP at cam change!

but even at +5 -5 it wouldnt cause a 20whp loss at swithover would it? im pritty sure the cams arnt degreed correctly for the big lobe

No 5 and five would lower the top end about 5 or so hp but the gear settings domnot not seem to be the issue, my best observation in your setup is the cams are off, next the bin you are using is not a good one and last would be your gear settings, afr is off

well heres pics from my build thread i didnt put them up here..

1999 Almera GTI



nismo front lip rota rims coilovers willwood front 4 pots..



so the engine was stripped down







so a nice pile of bits to get working on..

first off was sorting the windage tray in the sump to clear the longer stroke crank:-



greound the mounts down by 5mm and the fins down by 5mm to give 10mm more clearence.. and then tapped them down abit more for good luck



finished :-



next up was the known TB screw problem so i took them out and abit of locktite on them..



next up was the remote oilfilter plate which didnt fit so i had to knock up a spacer it may not work but we shall see..











following that it was time to port match the fuji manifold to the VE head :-





made a template up then got the die grinder out and some stones for somoothing.. i forgot the after pics







so with that all smoothed and matched it was time to shim up the N1 cam copies from newman







i had ground my own shims but these were available on ebay for cheaps and are geat perfect fit

next up was modifying the SR16VE N1 pistons to clear the oil squirters..

N1 vs 16VE pistons you can see the extra oil channel where the two holes are that aid crown cooling somthing i didnt know about till putting them side by side..







cheking the pistons against the squirters



i then notched them all myself and got them all to exactly the same weight





then i assembled the inlet with its new nismo FPR and FP guage



then it was time to assemble the rods with ther enew ARP studs and ACL 19mm race bearings



rings were then gapped and installed sat waiting to go in the block



crank in with new bearings rods bolted on all tourqued up





oil squirter gap



all the hard stuff done it was case of throwing everything on











eveyone knows blue silcone makes you faster







the engines had all new gasgets and seals put in whilst iv been working on her.. so quite a good weekend.. just the ancillaries and loom to put on

to sompliment it i have also got a shorter ratio Pulsar VZ-R gearbox which comes with a VLSD as standard

installed..



first start

YouTube - SR20VE 12.5:1CR N1cams first start

what type of header is that....

fugi

@ raceworx, cam u plz post up more specs and pics of the secondaries?

thanks

standard secondarys to the flex pipe then its 2.5 inch to the cat.. ill try and find some pics.. or sam might post up if hes reading this as hes the guy who had it done..

Very nice build

get a nistune an set the cams to 0,0 tune that bish an i bet you'll get your lost power.

nice build !

I only have these few days before it was chopped, it was cut after the flexi and a 2.5" pipe put on








gorgeous piece of kit do regret selling it at times