Fix Thread turned into Re-build thread! (built rb25 neo)

[Coolwhip]

Congrats John, glad to she her pulling through the dark days of her life.

Can't wait to see her at the meet.

[Carl H]

set the lag time to what the injectors call for, dont do any 'mucking about' with math formulas and crap.
then you need to scale the injector correction till it idles at what you've set it at in the map...typically its around 14.5:1 afr on the pfc.
you can use the apex formula to get you in the ballpark area for the injector correction, dont follow it to the t tho as it is more of a reccomendation...scale it till the WHOLE map reads right, you'll know when you have.
helps to have the actual software but very doable on the controller.

[Cjmartz2k]

I forgot to ask, are you MAF or MAP Power FC?

[sickness14]

Hey guys.
Its not looking too good for me ... making it to labor day weekend for the car meet is going to be almost impossible if i dont sell some of this s***. tell your friends, family, whatever to buy some stuff :p

S14 / RB Parts For Sale

– S14 Sunroof Weather stripping Brand new in box from dealership, $70
– R34 RB25DET Neo Exhaust camshaft. Make offer
– RB25 Head studs OEM used, not sure of mileage. Make offer $50
– S14 left front corner light, broken top tab, and small internal crack on lenses, but does not leak, still useable with other mounting points. $30
– RB25 neo upper intake plenum gasket rubber, have two of these, $18
– JDM Navan S14 oem front amber corner lights, new in box, $80
– S14 sunroof assembly complete minus fiberglass trim ring around outer edge of glass. Comes with drain tubes as well. $ Make offer, prefer pickup only, large item
– S14 SE sunroof headliner, great shape no stains, cracks, etc. Pick-up only $50
– S14 SE sunroof headliner trim ring around pull shade, $40
– S14 SE overhead light console with sunroof switches $35
– S14 M-sport D-style FRP +20mm wide front fenders new in box, $290, buyer pays shipping, large box approx $110 to ship

– S14 SE airbag control module $90
– S14 SE airbag control harness $50
– S14 SE passenger side airbag, $100
– RB25DE Neo Cylinder Head (machined, no cams, no cam caps) $150 plus shipping zerothread?id=418112


May part out the block depending on what i get offered for the various parts.
fresh never run completely assembled. Sitting on engine stand at the moment at a shop.

R34 RB25DET Block
.40 Over Bore, Line Honed, Deck Re-surfaced & Micropolished
R33 RB26DETT Crank, longer Crank Collar
R33 RB26DETT Rods, Micro-polished
CP 87mm RB26DETT Pistons, 8.5:1 Compression, CP Piston Rings
ARP Rod, Main, Head Bolts
ACL Race Rod & Main Bearings
Tomei Oil Restrictors

here are the specs for the bottom end:
Cylinder Bore Size 87
Piston Stroke Length 73.7
Head Gasket Bore Diameter 88
Piston Deck Clearance Negative If ABOVE Deck (Use '-') : -0.5715

Make me an offer, something reasonable. no loballers. lots of time and money went into this build. also have the following parts but they're used:
-oem water pump
-oem oil pump
-oem tensioner & idler pully
-oem rb25 rwd oil pan in great shape

ill let the built block go for $1600 OBO. really. best offer.

thx-J

[sickness14]

I forgot to ask, are you MAF or MAP Power FC?

MAF power FC.

[sickness14]

set the lag time to what the injectors call for, dont do any 'mucking about' with math formulas and crap.
then you need to scale the injector correction till it idles at what you've set it at in the map...typically its around 14.5:1 afr on the pfc.
you can use the apex formula to get you in the ballpark area for the injector correction, dont follow it to the t tho as it is more of a reccomendation...scale it till the WHOLE map reads right, you'll know when you have.
helps to have the actual software but very doable on the controller.

Carl, i need to know more about all this. I think i need more enlightenment on the inj settings and getting the A/F ratio calculations. i thought you took the Old SIZE / New Size = Correction factor. so i shoulnt use this formula, and just scale it until it idles correctly? or actually change the inj map in the lower blocks?

[Cjmartz2k]

I talked to Scott and he said my old tune, even if he can find it, wouldn't help you since I had the Z32 MAF chopped up and put into 100mm pipe. Do you still need the injector specs?

[sickness14]

I talked to Scott and he said my old tune, even if he can find it, wouldn't help you since I had the Z32 MAF chopped up and put into 100mm pipe. Do you still need the injector specs?

i got the injector specs, thanks anyway for trying chris! tty soon

[Sil240]

John post this up at SFLdrifters.com I'm sure one of those guys would buy this stuff. Especially since there are a huge shortage on s14 parts.

[sickness14]

That sounds like a good idea. I hate registering for forums and not ever getting on there again though :/ feel like a mooch

[sickness14]

Help setting base fuel pressure... ive read 3 bar / 14.5 * 3 = 43.5
psi without vac connection? then it drops down to like 36 at vac. Is this true regardless of injector size?


also, what vac is the car supposed to be pulling at ~650-700 rpm anyways? im at like -10 on my AEM truboost gauge.
thanks guys.

the car is going to be trailered to NY to Enzo to be tuned, trying to get the kinks worked out. still have a leak in my downpipe and have to get that fixed tomorrow.


-John

[Sil240]

Yeah 43.5 with no vac

At idle I'm pulling about 18 inches of mercury

Oh yeah, Enzo's getting big.
Even down in FL I keep on hearing his name come up.
He's good.

[sickness14]

Yeah 43.5 with no vac

At idle I'm pulling about 18 inches of mercury

Oh yeah, Enzo's getting big.
Even down in FL I keep on hearing his name come up.
He's good.

oh ok , so when im idling i should see like ~36 or so PSI of fuel correct? thanks for the help man.
at idle im seeing i believe -10kpa which i dont know if is correct (i may have vac leak, if anyone can verify this id appreciate it)

Awesome that you've heard of enzo! didnt know he was that good. im excited for next saturday i want to see like mid 400's and i'll be happy. hopefully my car holds up ...

later guys

[julio]

oh ok , so when im idling i should see like ~36 or so PSI of fuel correct? thanks for the help man.
at idle im seeing i believe -10kpa which i dont know if is correct (i may have vac leak, if anyone can verify this id appreciate it)
later guys

If you have an air compressor, run a boost leak check. I didn't torque down my boost gauge connection until I boost leaked my motor so that I didn't pinch the line. My idle vac went from 14ish to 18ish when I re-torqued it until it didn't leak.

[l0nestar]

John,

Hopefully your heap will hold together for the tune! GL man!

[sickness14]

Im still on schedule to be in NY on fri, have NEW downpipe fabricated, tune all day sat, drive back on sunday

I was having a hard time identifying the flange on my holset turbo. its called a full marmon flange, similar to a half marmon (v-band) but has an angled lip on the inside of the flange.

http://www.ht-archive.com/showthread.php?t=2735264

I need to find this flange locally. not enought time to ship
http://www.paradiseracing.com/Store/ind ... t&Itemid=5

[sickness14]

Anyone ever have problems with dipstick reading WAY higher than it should when using AWD block (rb26 or AWD rb25) and a RB25 dipstick tube and dipstick?

Whats the norm when using RB26 with RB25 pan? do you use the 26 dipstick or 25? the pan height is different and placement of dipstick may be different between the blocks. ugh.

I got my oil changed, put 10w-30 RD30 AMSOIL in her, got my idle problem figured out, the power steering pressure switch was unplugged, thought it wouldnt matter, now its steadily idling .

Tomorrow night im leaving for NY to get her tuned Wish me luck.

[meet07]

Yeah 43.5 with no vac

At idle I'm pulling about 18 inches of mercury

Oh yeah, Enzo's getting big.
Even down in FL I keep on hearing his name come up.
He's good.

Im pulling a hair over 10 at idle which is like 800-840rpms

[sickness14]

Yeah 43.5 with no vac

At idle I'm pulling about 18 inches of mercury

Oh yeah, Enzo's getting big.
Even down in FL I keep on hearing his name come up.
He's good.

Im pulling a hair over 10 at idle which is like 800-840rpms

Sweet! damn thats a high idle lol supposed to be @ 650.
anyway, hows your new turbo setup running? any numbers yet? I have NO idea what i'll make this weekend on the dyno. hope im not disappointed.

[meet07]

I beleive that issue with the car breaking up may have been the injectors maxing out. So im thinking that im somewhere near 340whp at 10psi but no dyno numbers...

I checked my vaccuum again this week end and im seeing 15 at idle which is 700-850rpms..

[Cjmartz2k]

O yeah, weren't you supposed to tune this weekend? It's Monday here already! Where's the numbers? :-)

[toadx8u]

He posted vids and numbers on Facebook...but it appears all of that has been taken down now...iirc he went with a nice conservative tune and got just over 450 on less then 20psi...but he will have to post the true #'s

[Cjmartz2k]

Hmm, not bad. Crank up the boost, add a dash of timing, let simmer for 20-30 seconds and voila! 500rwhp :-) JOHN!! QUIT TEASING US!! :-P

[toadx8u]

I said that same thing...but he insisted that it was enough where it was at

[Carl H]

what gear was the tuner running the car in?

[Skyline_BNR34]

I'd love to see this car in person.


Haha I've seen your ad on Craigslist about these parts while searching for 240's. Too bad I don't have money or I'd try and grab the RB25 block from you. :/

[sickness14]

I believe the car was tuned in 4th gear.
Car made 418whp at 15 psi

[youtube]http://www.youtube.com/watch?v=BfCO1GRLtx8[/youtube]
[youtube]http://www.youtube.com/watch?v=R7ay1WEZoDA[/youtube]
[youtube]http://www.youtube.com/watch?v=8lj3Mknphqs[/youtube]

[julio]

Post up the graph! Why only 15psi? Re-dyno w/race and 2+bar!

[Cjmartz2k]

What's going on man? Shoot me an email when you get the chance! I re-did my computer and lost all my email addy's, and your PM's are turned off. Glad to see you got it up and running and making that power at such low boost

[sickness14]

0_o