Okay, so im planning on building a kit for a ek coupe im getting a good deal on. Current specs:
B18c1 block
All forged
Wiesco 9:1 pistons
Golden Eagle rods
ARP head studs
Port and polished B16 head
Obd1 converted
GSR tranny

I plan on making it a daily driver but also going in on a minor build. I was wondering what cams i should run for best performance and efficency for a daily driver. I was thinking skunk2's turbo cams? or a stage 1/2 cam?
And what turbo i should look into. I dont want a ebay kit. Im looking at a T3/T4 .56 trim garret setup right now for a good deal.

Im somewhat new to the turbo game so please bare with me... Anyones .2cents is appreciated, thanks!!

 

It really all comes down to how much power you're wanting. I have a similar build (non-vtec though), and I run a mitsubishi 16g turbo. I picked it because the spool time is incredibly quick, and it can still make up to 380whp if pushed hard. I haven't dyno'd my car, but I know it's somewhere in the 330-350whp range on 25psi, and should be higher with a vtec head.

I really don't know what to tell you about cams, I run stock cams and they work fine, but again, I don't rev to the moon either.

edit - basically, do you want a quick spooling, fun street car...or are you wanting something a bit more potent? I suggest starting off small and going from there, but that's just my opinion.

 

Well i deffinantly want something on the smaller end of the scale because i dont wanna experience a whole lot of turbo lag, but then again idk if i wanna be running full boost at 4500rpm... Id like to get up into the 350-400whp range when pushing around 18lbs and maybe have a setup for day to day driving running 8lbs and a smaller amount.

As for the cams... i'd be doing a headgasket on the car(why im getting a good deal) so i figured if i was gonna do it right and wanted to put some good power down i may as well put some cams in while the heads off.

 

ANYONE ELSE HAVE ANY INPUT??

 

Skunk2 Pro 1s or Type R cams is probably what a lot will recommend.

 

Okay thanks, any feedback on JG turbo cams and Camgears?? I may be able to swipe up a good deal on a set of those together..

Another thing im concerned with is th trim of that turbo being .56 isnt that relatively small?? I want to spool somewhat early but then again with the engine built the way it is couldnt i run a little bigger turbo and not have to worry about turbo lag?? That way i gain more boost on the top end

Also if this kit im looking at comes with the turbo, all gaskets, oil lines, and intercooler all brand new and i could pick it up for $400 would that be adecent deal? All i would have to pick up is a manifold, downpipe, wastegate, bov, tapped oil pan and IC piping correct? Aside from a tune

 

Anyone??

 

gsr cams: will make 400whp no problem

type r cams: with ease

ctr: if you can find them not beat to ****

bc stg2 all motor cams: my fav love the low end and mid range and the price is hella cheap and waaaaaaaaaaaay underrated

 

Im looking to run turbo setup though. What about the JG turbo cams/camgears i listed? and you think i could just run stock gsr cams and be fine?

So is the 600 spent on cams really worth it?

 

For what it sounds like for your purposes, no. Stick with the GS-R cams, save your money for the rest of the setup. you'll need it. No turbo cams, no mid-level N/A cams (unless you have a large enough turbocharger). Start looking at setups that are similar to the one that you're trying to make and go from there.

 

Well i was looking to piece together what i can and run a decent setup. That garret t3/t4 is .56 trim but im unsure on it as far as spooling really quickly and leaving no top end.

But im looking at another AirResearch .60 that might be a little better fit for me?

The only reason i was thinking of upgrading the cams is to try to gain some low range power to compensate for any lag... but if i can save the money and run gsr cams and be fine with no lag problems id be happy.

 

Most cams are meant to make bigger power up top. and with a .56 trim, you should have plenty top end...I run a significantly smaller turbo and should trap in the 115mph range in the quarter mile...that's pretty decent up top if you ask me.

 

Would you say it would be better off to run the .60 over the .56?

Or would i be picking up more of that turbo lag feel with the .60?

If im going to run gsr cams i'll spend a good amount of the cash i WOULD HAVE spent on cams, piecing the remainder of a kit together. I just want to do everything the right way and end up with a reliable beastly daily driver :D

 

On second though i believe the car is running Si cams right now as is! Which are pretty much the same specs as ITR cams if im correct?

AND the valvetrain might have been upgraded as well.

 

If you have the cash for cams why not buy a bigger turbo

 

Doesnt a bigger turbo induce more lag cause it takes longer to spool?

 

That's not going to happen with any other cam than what you have. Try not to confuse "trim" with .60A/R housing vs. .50A/R Housing. They are two completely different concepts.

The reason the term "trim" is used is because of the fact that the 3 standard turbos that most people use are based upon the same exducer size on the compressor wheel. The only difference between the 50,57, and 60 are the inducer sizes, that change characteristics a bit. the smaller one being under 56mm... (not the same as .56 "trim". no such turbo exists).

Stick with the standard t3/T04E .60A/R 50 "trim" turbocharger with the stage III (2.559 wheel diameter) in a .63 A/R. Unless you want to go to the GT-R series, there's not too much more you can do with such a small displacement engine. (Except for the limited GT3251 journal bearing which uses the same exhaust wheel as the 50 trim).

Get the terminology correct. (go to http://www.turbobygarrett.com) so that we can understand your needs a bit better.

 

So what your saying is the .60 is just the size of the turbo itself and has nothing to do with the trim? meaning the .60 is obviously bigger then the .56

But the "trim" is just which size inducer wheel that particular size(as far as housing) turbo is?

Therefore with a .60 50trim turbo you would experience less lag then you would with a say .56 60trim?

Correct me if im wrong, im just trying to get the turbo size variations and benefits/differences down

 

.60 is a HOUSING size. .56 for what you're trying to apply doesn't make sense.

Lag is based upon the size of the wheels vs, the size of the engine. the housings slightly change that, but not significantly.

Trim is the distance between inducer of the wheel and exducer. nothing in relation to the housing size.

 

^^ shodan is the man

 

Oh i know where im getting confused. I asked the guy what trim his turbo was and he told me .56, i think what he meant was that it was 56mm making it a .60 50trim correct?

So basically as far as turbo lag its going to be the same on any .60A/R size turbo? Unless the wheels have been changed from original right?

Thanks for those diagrams that actually helps quite a bit.

 

Also for my own purposes. So a t3/t4 .60A/R 50trim turbo would be a pretty generic but good turbo for me to go with?

Id like to get up into the 350+whp range. Without too much lag as it is going to be a street car to. plus i also of course want it to be reliable.

 

would be nice to see once tested but precision just released a turbo called the 5431e which uses a billet wheel and is the highest flowing 50 trim i've seen on a spec sheet.

https://turbodaves.com/Precision_Turbo_.html

^ has the best prices i know of on precision

the 3431e is a tried and trued unit that can make 400whp without being completely maxed out {it's a 57 trim}. i remember seeing one make 440whp on a gsr at full tilt.

 

Well i'd like to stay relatively cheap on how much im gonna spend for the kit cause im probably going to spend alot on tuning

 

Stock motors can safely take up to 500Hp I've heard... but thats pushing it too much... Im boosting my stock motor and my goals are 240-270whp... its my daily, I WILL NOT DRAG IT <<---- easy to say for now. but none the less its my daily and Im also looking for a solid reliable boost
and I plan on getting the best tune possible! <--Thats important for a DD