View Full Version : KAt or SRt

10-15-2002, 09:20 PM
My 93 has 140k miles running ok. Tranny needs 2nd to 3rd gear synchros (rebuild?). Upgrades so far: Injen CAI, Dual N1, 11lb Flywheel, Spec stage 2 clutch, suspension and some brakes. Want 250-280 hp with max 10 psi boost.

Options:#1 Motor rebuild with pistons and seals, tranny rebuild, Nsport stage 1 kit.
#2 SR20det with tranny and ecu swap. Bigger turbo to reach hp goals?

Which one would cost more? Having a shop do it (McKinney Motorsports, San Diego).


10-15-2002, 09:24 PM
1 word my friend, SEARCH. http://forums.freshalloy.com/ubbthreads/images/icons/wink.gif

10-15-2002, 09:38 PM
Well in your case I think going with the sr20det would be a little bit of a cheaper route, unless you can do or get a lot of the repairs on the KA for cheap but it still has a 140 thousand miles which is a lot. A turbo kit would cost around 3500 give or take depending on which way you want to do it by (talking about the turbo kit for the KA). But if you can get a sr20det for a decent price it would a good start on going for the 250-280 mark that you want because it has larger injectors,lower miles, and many more things (SEARCH). But it really all comes down to what you really want because they are both great motors and aernt the only two motors you can choose from, and will cost you about the same price depending on how cheap you can get things and what you can do. Sorry I didnt really answer your question but I think this will get the ball moving.

10-16-2002, 12:23 AM
I rebuilt my KA+T with JWT pistons, Pauter rods, etc... and believe me, an SR is much cheaper (specially for what you're aiming at). I live in San Diego too by the way if you want to look at or ride in it (Make sure to bring some extra diapers). http://forums.freshalloy.com/ubbthreads/images/icons/smile.gif

10-16-2002, 12:26 AM
you probably wont need a bigger turbo for those HP goals on a SR. basic bolt ons and increased boost should get you REALLY close if not there on a stock T25.

10-16-2002, 03:25 AM
250-280 on a stock t25 is a bit opitmistic.... especially with only 10psi.

you can't just swap out the turbo. you have to take care of the fuel managent with injectors and fuel pump. also replace the mafs since it maxs out after 260hp. then get a reprogramed ecu and/or s-afc to tune it further. and if you want those numbers with only 10psi.... i guess you'll have to start looking into cams shafts and adjustable gears.

if your goals are only 250-280 have your ka checked out (compression test & etc) and if it comes out ok get a bolt on turbo kit. why build a ka if your goal is only going to be 250-280?? with a built KA i would be looking for 500whp.
if you do your research you can get a turbo kit for a very reasonable price. much cheaper then getting an sr.

10-16-2002, 09:29 AM
http://forums.freshalloy.com/ubbthreads/images/icons/smile.gif well I said REALLY close. Im trying to borrow a boost controller for mine to see what I can do with the boost turned up. fairly stock setup on mine so Im curious what 10 12 14 and maybe 16 psi would give me.

10-16-2002, 03:41 PM
go turbo on your ka theres a website that i found that gives a great deal on a turbo kit with a t3 turbo for $1900 for the that money you gut a manifold a 2.5 downpipe all the lines you need a blow off valve and more heres the site:http://www.realnissan.com/parts.asp youll be happy with the turbo and its performance you might want to look into gettin the intercooler that they sell for another 600 itll help in the long run but if you plain on running only 10 psi of boost then you could probaly get away with it

10-16-2002, 07:25 PM
Thanks for everybody that replied. Keep in mind this will be my daily driver which is the reason for 10 psi. I know I can do more for a daily driver but don't want to. The reason why I'm looking at SR or rebuiled the KA is really due to the tranny issue. If I need to rebuiled my tranny then I think it will really be more cost effective to get the SR with the low mileage tranny.

As for "search" NAZI, have you tried the function yourself. Nice post about the Wankel transplant but I could swear I've seen post about it before. Actually, I'm pretty sure. Sometimes searching just doesn't do it.

10-16-2002, 07:47 PM
if you're gonna stick to stock or close to stock sr levels, get the sr, it'll be cheaper. above that, which is the level you want, you'll have to upgrade so much [censored] on the sr you might as well upgrade the ka. at even higher levels, you'd be better off w/ the sr once again because of the product support for it, you're gonna need a lot of custom parts for a ka w/ over 400rwhp. but then at an even higher hp level, like over 600rwhp, the ka has a bit of an advantage cause it doesn't have rocker arms which fly off at high rpms or misshifts. but for a ka of this magnitude its gonna cost $$$. it really depends on what you wanna do.

10-16-2002, 08:29 PM
cant put the stock t25 down... it pushes me consistly to 12.8's...... and i have no fuel or ecu upgrades... all boltons with boost cranked... and has been cranked for the last 6 months no problem