KA-T GT35 Build.. cont..

[480sx]

Dont turn up the boost until about 1k miles. Your rings take atleast that much to fully seat.

[lrb_2000]

I got my emance tune yesterday, and I love it.. Perfect afr's as I can tell.. idle and cruising are between 14.7-15.5.. WOT is never less than 11.5 or above 12.. I'm very happy with it.. Only problem I had is that I had to run 1 in 9 out on the safc2, which is weird but it works fine... I have 100 miles on the engine now, and 7psi halls ***!! I can't wait to up the boost after a few hundred more miles.. He said I can run up to 20psi on 93 octance, and more with e85 or race gas.. woot.
Modified by lrb_2000 at 4:10 AM 7/6/2008

[allmotoref]

i cant wait 2 start my build

[lrb_2000]

oh yeah, do you have if planned out?

I hit 300 miles on my engine yesterday, changed the oil for the 4th or 5th time haha, and turned up the boost to 10psi. WOW, huge difference from 6psi.. It feels amazing, and just wants to keep pulling. I can't wait to put it on a dyno, and take it to the track.

[Joesph R Cooper]

Ok, so this is looking boss and all <3

but I must ask of you one thing......what Hicas eliminator did you buy? ebay eliminator? the ones off of Project Nissan? I have Hicas too and I have no idea whats quality & whats junk.

help is GREATLY appreciated(sp?)

[lrb_2000]

Well, I think this is the most similar one to what I bought.. It wasn't this cheap though, so I don't know... I got it off ebay.

http://cgi.ebay.com/ebaymotors...ZWD1V

I only used the bar though. I bought a non hicas powersteering pump and reservoir instead of capping off the lines.. I removed all the lines, both the smaller pumps and all.

[Joesph R Cooper]

ok sweet thanks dude!

[daconkiftador]

Lets see some updated videos, the one of your car NA has what...79k views on youtube!

[lrb_2000]

Yeah.. how about you call me, or answer your phone! and we'll go out and make some videos. I got those brand new tires leo gave me mounted on the back, they're ready to be destroyed.

[nissanfanatic]

My Break in

1) Start car and allow it to warm up. Then set timing. Shut car off. Change oil and filiter. Let car cool.2) Run car on the road and do ~33% throttle pulls to redline. Most don't recommend redline, but this induces full rod stretch so you don't form a ridge. You do not want a ridge on your engine. If I could have, I would have run the engine past max RPM to ensure this doesn't happen. Max RPM a few times and full vacuum decel. 15minutes of run time approx. Shut the car off, change oil, let cool.3) Same thing as last time, but with 66% throttle. Change oil and filter, let sit.4) Same thing as last time, but with 100% throttle pulls. Change oil and filter, let sit.

I consider the engine broken in at this point. I ran my car for maybe 200-300 more miles on conventional just because I didn't want to drop the money on synthetic quite yet. If I wasn't lazy with money, I would have switched at that point. My philosophy is, how many times has the piston traveled up and down the bore at this point? The bore doesn't wear that much. I just changed my conventional oil out a week ago and saw no silver shavings. I'd say its broken in, as I have 180psi on all four, and I had this compression after the second stage of my break in. In all reality, it was probably broken in at that point. People put way too much thought into break in IMO. I run CP pistons in standard size and Pauter Rods. I simply honed each cylinder myself with a drill hone. No boring or any machine work.

[lrb_2000]

Yeah, I agree with people looking to far into breaking in an engine, especially a KA. My grandfather ran 7second race cars most his life. They didn't even break them in. Just fired them up, and ran them down the track.

My break in so far as been about what you described. Did the first step the same. After I changed the oil I ran up and down a few streets to redline under 50% throttle, changed the oil again at 5 miles. Changed it again at 50 miles. Again at 100 miles. Once I changed it at 250 miles, there was hardly any shaving in the oil, or on my magnetic drain plug. Everything before this point I ran at 6psi.

I turned the boost up to 10psi when I hit 250 miles, and now have about 450 miles on my engine. I'll change the oil again at 500 miles, at this point should I switch to full synthetic oil? If so, what brand and weight should I use.. I've never ran synthetic before.

[480sx]

Iv read to do the switch at about 1000 miles or so.

[lrb_2000]

sounds good... is 5w30 fine?

[nissanfanatic]

Depends on your climate. Nissan specifies that 5W-30 is good for all ambient climates. Since I am in Florida where it hardly ever goes below freezing, I run 10W-30 which is approved by Nissan for the reasons I listed. If you have to run thicker than that to maintain decent oil pressure, look into buying new bearings.

If you have good compression, what more needs to be broken in? **** the rumors, change to synthetic as soon as you have good compression. I don't want my cylinders to wear any more than they need to in order to create a good seal. What more do you need?

[lrb_2000]

haha good call. I'll switch to synthetic my next oil change then. What's a good brand to use then, does it really even matter? I hate paying more for the same ****, it bugs me. I just want to most horsepower I can get, espesically from easy things to change like oil.

[idahotuner]

dude freaking awesome build. do they makea greddy intake manifold for the ka. cause if so it seems liek it would bea good investment. with that turbo as it flows more on the top end. i will go through the whole thread once i am off work and make a more meaning ful comment.

[terbo]

At what RPM are you seeing full 10psi boost?

[daconkiftador]

not bad, player.

[lrb_2000]

dude freaking awesome build. do they makea greddy intake manifold for the ka. cause if so it seems liek it would bea good investment. with that turbo as it flows more on the top end. i will go through the whole thread once i am off work and make a more meaning ful comment.

I'm not sure if they do. I mean, I know greddy doesn't make one, but there are others. Next thing I buy for the engine is going to be V2 cams though. Then an intake manifold would probably be a good idea. That plus ported and polished head, plus V2 cams and my equal length manifold.. mmm.. fun times! I need to hop on the only dyno down here and see what i'm making at 10psi.. and maybe 15.... or 18... oh god.

At what RPM are you seeing full 10psi boost?

About 3400 rpms.. on my stock engine before this one I saw it at around 3800 rpms.. I'm not sure what changed it so much. Many the head flow.. I just know if i'm cruising at say 2600rpms in 2nd and floor it, 10psi will be before or at 3500rpms, and never lets up.. it wants to keep pulling past 7000rpms.. I can't wait for cams.. it's going to be a beast.

not bad, player.

I think you need to drive it really. It's a lot different experience to drive someones car, than to sit as a passenger, you know? I love driving other peoples cars, I just wish it happend more often haha. We'll have to go drive around this weekend, and get some **** on video.
Modified by lrb_2000 at 3:47 AM 7/9/2008

[Spiffy240]

i must say very nice build and this was really your first time building up an engine?!?!?! great job and your an inspiration for me to want to rebuild my engine myself

about engine oil, i know many use and swear by Mobile One Full Synthetic and also Royal Purple is always known for there amazing quality. I remember reading an article that was linked from here that compared many brands of oil both conventional and synthetic and Royal Purple was the best with almost non existent wear on your pistons and heads. So those are the 2 i would recommend for your engine.

GOOD LUCK and I cant wait to see some dyno numbers out of that b-e-a-utiful ka.

[lrb_2000]

Yep, first time doing pretty much anything to a car. I learned most everything off the good old internet. Especially this forum.

[daconkiftador]

any updates?

[lrb_2000]

eh... not really. I got about 600 miles on the motor.. my manifold was cracked to **** since my flange was warped, but it's fine now. I'm racing an rx-8 tonight I guess. He thinks hes' going to "smoke" me. HAHA! ... I polished my wheels and painted them gold also.

[480sx]

An rx-8 isnt going to 'smoke' anything. I could take a N/A gutted 1.8 liter acura integra to the track and embarrass him lol. NO VTEC NEEDED! Even at 7-8 psi you should walk all over that guy.

Its a 4000 pound, low 200 hp something 'sports car'..... For grandma's, grocery getters and rotory dorks.. hehe
Modified by 480sx at 8:10 PM 8/16/2008

[lrb_2000]

Haha.. I know.. I raced this same guy a few years back when he had an automatic Jetta that he thought was fast. I had a stock 89 prelude with 200k miles on it and beat him hard.. Next day he sold his car. I hope it happens again lol.

[idahotuner]

i want some info on your gt35. how long does it take to hit fullboost. have you dynoed it yet. what the power capabilities of it.

[lrb_2000]

Well it's .63 a/r turbine, .60 a/r compressor, and 57 trim compressor I believe.. I was told it should be good for 610whp. Jason, the guy who tuned my ecu from Emance, made 560whp on 28psi I think with this same turbo... I hit full boost, which is 12psi right now, by 3600rpms... I haven't dyno'd it yet, i'll get to that soon. I have 650 miles on the engine, i'd like to wait until at least 1000 miles when I go to synthetic oil.

[idahotuner]

check out this man. http://www.full-race.com/catal...=1906 twin scroll gt35. how would that be compared to the spool up of yours i wonder. i dont want to have to go soilid liftors when i do my next build

[lrb_2000]

Well, it would probably spool a little later, but maybe faster? I don't know... look at the turbine housing size? I don't have a problem with when mine spools. I love it. It doesn't hit boost up hill or anything, and I still get over 25mpg with 810cc injectors... but when I give it WOT it spools up fast. I'm sure there's a lot of other things that factor in though, I/c piping sizes, ported head, equal length manifold etc..

You'd need a twin scroll T4 manifold as well.. WAYYYY too much money.. is all this for an sr20?

[idahotuner]

yeah for an sr. it will bea build for later down the road. have a mazworx built bottem end. and i will builed the head again. but this would be a futur build. i am going to enjoy mine for now