Building A Low Boost KA-T

[Mr240dude]

What's up guys, I'm hear again with some thoughts on piecing together a turbo for my ka24de. I've done my research and know the basic foundations, before anyone gives me the "use the seach button" I wanted to get some feedback on building a low boost ka24de, yes I know people are going to say well you're going to get addicted and want more boost later on, I know this., but for now I ask the bigger question first...how necessary are 370cc injectors and a walboro fuel pump at low boost? I wanted to start at 5psi and let me add I just replaced my fuel pump last year. I even read that some people have gotten around tunes with that low of a setting. Are there any experiences from anyone with this kind of build? Also my favorite part which many will argue NO DONT DO IT. I hear certain ebay turbos depending on the seller are in fact not too bad, this one in particular has gotten some positibve feedback...check it out. http://www.ebay.com/itm/110798002355?ss ... 1423.l2649

I've also heard good things about EMUSA tubos as well, they're balanced pretty well. http://www.speedyracer.com/turbo/turbok ... -turbo-kit

I know most ebay turbos are probably a bad idea but I'm willing to roll the dice with the few that have gotten good reviews and if people are speaking good about these 2 turbos I may just experiment. I don't have the money for greddy or any of those other arm and a leg turbos. If I can get something to add some spice to my ka24de then hell I'm willing to work with the one of these 2 turbos. If anyone has used any of these 2 kits and has boosted on stock injectors and a new stock fuel pump, let me know thanks again.

[Razi]

With 5 psi, you might be able to get away with stock injectors + an FMU and retarding the distributor a few degrees.
EMUSAs might be already since they actually do balancing.

If I were to buy a new pump, I'd probably buy an AEM pump. Only $99 at FRsport, about the same price as a Walbro.
My Walbro died once, and I'll bet it'll crap out again. Once it does, I'm buying AEM.

[pepesilvia]

i had a godspeed t25 kit on my daily. everything worked good EXCEPT: 1.) turbo oil seals blew after a few months, 2.) stock pump couldnt keep up and 3.) the steel manifold looked good but got waaaaaaay too hot too quick... i feel like if you buy a cheap turbo kit you can keep everything except the turbo. i ran an fmu on 7lbs and retarded timing worked fine for a quick daily.

[krash]

if you want anything that lasts, buy a real turbo. Get a T25 from an SR, I'm really not into gamb|ing that much money on an ebay turbo. Like Razi said, stock injectors should do what you need to do.

I really don't think you'll stay at 5psi for long though haha

[SX APPEAL]

People have this funny idea that if a part (turbo, suspension, anything...) lasts for a year or two of "abuse" that its quality and the brand can be trusted. Doesn't anyone realize that cars are engineered to last not just for a couple years but for DECADES? Yes this expectation is reduced when you start talking about the abuse of high performance parts, but the point still applies. Ebay companies can make part that will hold up for a year or two with no problem, actual reputable companies engineer parts to last as long as the car does. THATS what you're paying for.

[Lobo240sx]

People have this funny idea that if a part (turbo, suspension, anything...) lasts for a year or two of "abuse" that its quality and the brand can be trusted. Doesn't anyone realize that cars are engineered to last not just for a couple years but for DECADES? Yes this expectation is reduced when you start talking about the abuse of high performance parts, but the point still applies. Ebay companies can make part that will hold up for a year or two with no problem, actual reputable companies engineer parts to last as long as the car does. THATS what you're paying for.

[costa_rican13]

How many teeth are you talking about retarding on the distributor razi? I'm

[Razi]

Just get a timing gun and retard your base timing about 2 degrees.

[pepesilvia]

Just get a timing gun and retard your base timing about 2 degrees.

isnt it like .5 degrees for every pound of boost?

[Razi]

Dunno, WD told me to retard mine by 2 degrees when I had an FMU setup running 8 psi.
You could be safe and retard it a bit more.

[Mr240dude]

I have to ask...what exactly is an fmu? I know it stands for fuel management upgrade, however what's it consist of? Is this an alternative to sending my chip to enthalpy? The tune part really deters me from going ka-t path.

[Razi]

No, it stands for fuel management unit.
It's a small unit that increases your fuel pressure depending on how much boost it sees. This causes more fuel to come out of your injectors to keep up with the fuel demands.
I ran a Vortech one, I think it was a 8:1 ratio unit.

[Mr240dude]

Where can I get one of those? Is that an alternative to the rom tune?

[Razi]

Yes, it's not as good as a ROM tune (which I would recommend), but it's decent.
Vortech sells one, you can probably buy one off Summit, Jegs, eBay, etc...

[Mr240dude]

This wouldn't be it would it? http://www.ebay.com/itm/NEW-10-1-FMU-FU ... ed&vxp=mtr

[pepesilvia]

yeah thats an fmu. but maybe i would suggest a legit one like vortech? if yur gonna cheap out, you might as well cheap out right....

[OutToWinPAHC]

if you want anything that lasts, buy a real turbo. Get a T25 from an SR, I'm really not into gamb|ing that much money on an ebay turbo. Like Razi said, stock injectors should do what you need to do.

I really don't think you'll stay at 5psi for long though haha

I know a guy who rebuilds chinese turbos with precision or garrett parts, if you need the info

[Razi]

yeah thats an fmu. but maybe i would suggest a legit one like vortech? if yur gonna cheap out, you might as well cheap out right....

Buy a Vortech unit at least.

[Mr240dude]

if you want anything that lasts, buy a real turbo. Get a T25 from an SR, I'm really not into gamb|ing that much money on an ebay turbo. Like Razi said, stock injectors should do what you need to do.

I really don't think you'll stay at 5psi for long though haha

I know a guy who rebuilds chinese turbos with precision or garrett parts, if you need the info

I'd like the info on that.

[Mr240dude]

Ok so let me ask one last question. So since an fmu can be used as an alternative to ecu tune with lower boost, so I should be fine with just a 255 walboro and stock injectors? I plan to boost no more than 7psi. Let me add my car is an automatic transmission, hopefully that isn't an issue.

-t25 turbo
-down pipe
-manifold
-intercooler
-piping
-bov
-wastegate

This should be everything needed for a turbo kit I believe, how much to expect a shop to charge for installing? Thanks.

[Mr240dude]

Oh one last thing....I heard good things about EMUSA turbos, http://www.speedyracer.com/turbo/turbok ... -turbo-kit This doesn't say for ka24de though.

[pepesilvia]

ok. yes, you can use stock injectors with the 255lph pump and an fmu on low boost. 7-8 psi MAX. i ran yur same set-up with an automatic transmission and never had a problem, although they say you buy some kind of transmission oil cooler to keep temp's low. dont waste yur time with a shop, they'll overcharge you. but idk how much it'll cost. also, yur missing oil feed and return lines on yur list. plus the fuel pump, and definately upgrade yur spark plugs. frsport sells the perfect iridium spark plugs pre-gapped here http://www.frsport.com/NGK-Iridium-IX-S ... _3102.html.... and as far as EMUSA goes, ive heard so many different stories so i cant be too sure about their quality. you get what you pay for. good luck

[Mr240dude]

Hey guys, I found a used garret t25 from a sr20 supposedly in good condition, for $90 think that's a good deal? Any tips to inspect it since I'm sort of a noob with turbos? Suppose to check it out tomorrow..

[Razi]

Sounds decent.
Grab the turbo shaft and wiggle it.
Very slight side to side is okay, but in/out play is not.

[Mr240dude]

Alright thanks, wish me luck lol. Really need to start my turbo build.