just curious, what do you guys run for a tune/boost/power that want to not sink money into the car?

Say if I had a intake/catless DP only. What could i tune to, to not blow anything up? (charge pipes, IC, transmission, clutch)

 

it flashed at me yesterday, but i havent scanned it yet to see....(so far) it doesnt seem to do it when the car is at hot running temps, like 200*+, but if it is 180-190* it does it everytime...thats the only thing i noticed brother...maybe its irrelevant, just thought id mention it

but at the track, and last night, it def. has fuel cutoff at stock 6300rpms though. weird

 

i really wanna go catless if i can without a retune. I have a high flow Turbo-xs catted downpipe right now, and wanna get the ZZP catless with angled 02 bung.
Can i do this without a retune because it is exhaust parts?

 

You can run a GMS1 all day.

 

yup

 

guess i need to call my tuner and see if he turned off what was needed to go catless?
If i need a retune just to go catless, then ill just get over it.

 

You can definitely go catless without a retune BUT seeing as how your cat over temp protection will still be active, you won't get the full benefits.... there will be a few other tables that could use some messaging but you won't harm anything. With that being said, with a catless dp you are less likely to trigger cat over temp protection anyways because they just naturally generating less heat without the restriction of a cat

 

His cat over temp the the same as the PE lambda so A/F is unchanged even in COT mode. He does not need a retune to go catless unless he goes with a DP that does not have an O2 extender which requires me to turn off the P0420 cat code but really nothing else.

 

ooooh yeah brother, snap into a slim jim, oooh yeah....lol
thanks man...i figured so, just needed to be certain.

im gonna order the zzp catless along with the new flywheel and bolts this weekend. Then i will sell my catted downpipe for $100

 

Gotcha.. Without knowing the full details of how you have him setup I was only assuming his cat over temp was still active to be on the safe side..

I'm not sure if I fully agree that some areas couldnt use some messaging after adding a catless dp though..

 

Well, David will have to re-tune me once i get a new turbo at the end of the year im sure...thanks for the info guys.

 

What areas? Tune is fairly aggressive but I am going to lean it back out because it is clearly not any faster at the track at 0.82 PE lambda and a good amount of timing vs 0.88 PE lambda and less timing. I still stand by 0.87-0.88 PE lambda on gasoline after 4 years of tuning LNFs. Still never seen a cat melt with COT turned off either.

 

Which turbo are you going with? GTX series or EFR I would recommend.

 

With his tune being aggressive, you don't think that with the quicker spool of being catless that his dals in the 30%-80% areas from 2000-4000rpm could benefit from being lowered a tad? Granted he is of course going from a high flow cat - catless and not the stock dp - catless so it's not going to be as drastic, but a flow change none the less.

I'm not trying to imply that you're going to hurt his car or anything man, nor am I trying to tell you how to tune by any means. I'm just saying that I personally would do that with my own car. Maybe I'm just a bit on the **** side I suppose..

 

i was gonna try the bnr2781 since its a bolt-on turbo, unless the gtx is as well, then i will def go that route since you did suggest tha when i was at your house last time.
My clutch is completely shot, 2-3-4 is useless, so when i get the clutch installed, we will see what happens. My car felt pretty quick the very first time you tuned me when my clutch was still good, but since has been weak because of me not putting the power down properly. Plus, i gotta check my axles because i am getting a popping sound when i turn now too...i have the worst luck with this damn car

 

Oh, the 30-80% areas are lowered and smoothed compared to stock already. Drivability is very good on his car currently. Mine did not change much going from a high flow cat to catless except I saw a small gain of 4 whp when I dynoed vs the high flow cat on basically the exact same tune.

 

400whp and 400wtq is my goal now until the motor is built for more power

what is that to the crank, like 450hp and 450lbft???

sounds good in a 2900lb car...lol

 

EFR Cant wait to get mine!!

 

nobody else?

 

Do i need a retune if i get ferrea valves, wiseco pistons, and super-tech springs???

 

If you change the compression ratio of the pistons then yes if not then no.

 

Term, whats up man? Thanks for the reply..i think i may do some things before the turbo swap to be safe. the compression of the wiseco pistons is 9:3:1 with stock 86mm bore, and stock is what? 9:5:1

either way, i figured if i was gonna replace the springs and valves, then i might as well do the pistons while its open...

 

IIRC they are 9.4:1 but either way you are right in the ballpark. If you went to a 10:1 or down to a 8.X:1 it would change things quite a bit but staying within a few tenths of a point will have little to no real effect. Planning on doing E-47 or just plain 93 octane still?

 

i would love to do e47 brother, but the closest place that carries it is near you when i looked it up, so thats a no go for me..93 e10 is all i got....lol
have you tuned any s20g hahn set-ups? i got a good quote from them for eveything, but james seems to have surging issues with it and cant really tune it to 26psi like it should be without surge on his car

 

i think it wasn't any faster due to my clutch being shot, and my hpfp taking a crap..
We will see after i replace my clutch and replace my timing tensioner.