Nissan SR20 Forum Nissan SR20 Forum Header Right

Welcome to the SR20 Forum!

A community of enthusiasts dedicated to Nissan's SR20DE/SR20VE/SR20DET engines.
Start here: forum search. Be sure to search on what you're looking for before posting a new thread.

You are currently browsing the forum as a guest. In order to access special features, the image gallery, and post you will need to be a registered member. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact the administrator.

Google Links

» Log in
User Name:

Password:

Not a member yet?
Register Now!
» Wheel & Tire Center

Sponsors

Sponsors


Go Back   SR20 Forum > Main Forums > Turbo



Reply
 
Thread Tools Search this Thread
Old 08-25-2008, 02:06 PM   #1 (permalink)
Breaks a lot of sh*t..

 
Join Date: Apr 2008
Location: NE
Trader Rating: 1 (100%)

Need opinions for more HP- READ.

I'm not looking for opinions on new parts, please read the following... Just got the car dyno'ed over the weekend.

Let me state that I am not at all happy with the power the car made... It is way below what she is capable of. I took the car over to Victor Research's dynojet over the weekend and made 320whp. The car is probably making a little more than this realistically because she broke tire on the dyno.

INFO:
320whp @ 19psi.... The car has JWT ECU with E-manage. PLEASE don't tell me I need Calum, I already know that and it will happen this fall
Base timing at idle is @ 15deg right now and at 6500-8000RPM's it is around 17deg.

Can I safely add more timing in the mix with just 93oct? My AFR right now is at about 10.8-11.1:1. I know this is rich, but It was about 90 deg F out when tuned and can get down to 50 deg F at night... I want a VERY SAFE TUNE.


Please Add info...
__________________
..Updates soon.
CTGreen98200SX is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-25-2008, 08:10 PM   #2 (permalink)
Powered by BABY GODZILLA!
 
jonwepa's Avatar

I support the SR20 Forum!
 
Join Date: Feb 2007
Location: philly, pa
Trader Rating: 36 (100%)

What motor and turbo are u running? Either way I really don't think you want to advance the timing for power. If you want more power increase the boost or lean it out a little. Why mess with timing
__________________
Old set-up: 91 se-r sr20de+T 13.04@110mph w/ a t25 and s3's
New set-up: 91 se-r gti-r sr20det w/ a gt28r(Something MUCH bigger coming in FEB...),gti-r manifold, MSD 72lb inj., N62 maf, Turbo XS RBV-25 bov, Calum ecu(TUNED BY STEVE), Hallman pro rx mbc, Greddy tt, B&M ss, Greddy FMIC, AEM wideband, Autometer gauges, AGX's on Road magnets, etc.....And it Does run....barely

Last edited by jonwepa : 08-25-2008 at 08:11 PM.
jonwepa is offline   Reply With Quote
Old 08-25-2008, 08:15 PM   #3 (permalink)
DVNO, 4 capital letters.

 
Join Date: Jun 2003
Location: South CT
Trader Rating: 13 (100%)

So you want to tune but don't want the proper tuning tools. While we are at it I want a million dollars. Also did you do any machine work for all your new engine parts or did you just throw them in?
Setzer is offline   Reply With Quote
Old 08-25-2008, 09:21 PM   #4 (permalink)
easy 400WHP

 
Join Date: Jan 2002
Location: SoCal
Trader Rating: 27 (100%)

Thats not good man. I dont recommend using the emanage on top of the JWT.

Let the JWt do its job on its own. I made 397WHP at 15 psi,slightly similar setup so its possible...somethings going on...

My afr was 10.7-10.8: 1 on my run and I wanted it to be at 11.5-11.7:1 turns out I had tons of boost leaks, but still man youre way too low for what you should be seeing. Need details..
__________________
~jRod

Quote:
Originally Posted by Random Genius
"...Everyone in California is easy to deal with, in the mid-west people are so uptight and their first reaction is to get pissy to try and get results. Makes me want to move to California!..."
NX$paniard is offline   Reply With Quote
Old 08-26-2008, 08:41 AM   #5 (permalink)
GTI-R DONE

 
Join Date: Sep 2004
Location: Fall River Mass
Trader Rating: 17 (100%)
My car also made less power than it should at 20psi it only made 333whp. The owner of the dyno said the boost was blowing out the spark. I gap my plugs at .028 but I'm running stock ignition so I ordered a msd 6al2 and Coil and gonna try that. Also I wanna re pressure test it, what's the best way to check for leaks, thanks guys
__________________
94 Aztec Red Sentra
Gtir Motor Swap with S3M Cams Love Fab Turbo Manifold
and a 3in turbo back.
Turbonetics 60-1 With a PWR Water to Air Intercooler
JWT Ecu 72lb program with Z32 MAF
Running a P11 Tranny with LSD and a JGY locking Insert
All Rolling on Drag DR20s and Ksports.

Best time of 2006 12.4 @ 111mph with a 1.87 60' only running 14psi
SeRboostSr20 is offline   Reply With Quote
Old 08-26-2008, 09:00 AM   #6 (permalink)
Breaks a lot of sh*t..

 
Join Date: Apr 2008
Location: NE
Trader Rating: 1 (100%)

Quote:
Originally Posted by jonwepa View Post
What motor and turbo are u running? Either way I really don't think you want to advance the timing for power. If you want more power increase the boost or lean it out a little. Why mess with timing
It's a DE motor that I just rebuilt all forged @ 8.5:1 CR. Everything was done right, nothing skimped on, and everything was measured. It's not the motor.
Quote:
Originally Posted by Setzer View Post
So you want to tune but don't want the proper tuning tools. While we are at it I want a million dollars. Also did you do any machine work for all your new engine parts or did you just throw them in?
Thanks for not helping, If you re-read what I wrote, you'll see that I mentioned I'm going Calum just not this second. As much as you may hate e-manage (maybe as much as I do), it's still a piggy-back tuning system and some people do use it- regardless of it's comparison with something more proven such as Calum.
Quote:
Originally Posted by NX$paniard View Post
Thats not good man. I dont recommend using the emanage on top of the JWT.

Let the JWt do its job on its own. I made 397WHP at 15 psi,slightly similar setup so its possible...somethings going on...

My afr was 10.7-10.8: 1 on my run and I wanted it to be at 11.5-11.7:1 turns out I had tons of boost leaks, but still man youre way too low for what you should be seeing. Need details..
I already know I'm way under what the car should be making. The car is safe regardless. There's no knock right now, and I'm at a very safe AFR. The car is running way better than it ever has since I bought it... I'm just not at the power level I should be.
CTGreen98200SX is offline   Reply With Quote
Old 08-26-2008, 09:01 AM   #7 (permalink)
Breaks a lot of sh*t..

 
Join Date: Apr 2008
Location: NE
Trader Rating: 1 (100%)

I guess I'm just gonna have to keep her where she's at until I get Calum.
CTGreen98200SX is offline   Reply With Quote
Old 08-26-2008, 09:06 AM   #8 (permalink)
Powered by BABY GODZILLA!
 
jonwepa's Avatar

I support the SR20 Forum!
 
Join Date: Feb 2007
Location: philly, pa
Trader Rating: 36 (100%)

Again I think you can gain some power if you lean it out some, but definitely don't play with the timing unless your going to use 104+
jonwepa is offline   Reply With Quote
Old 08-26-2008, 10:05 AM   #9 (permalink)
Breaks a lot of sh*t..

 
Join Date: Apr 2008
Location: NE
Trader Rating: 1 (100%)

Quote:
Originally Posted by jonwepa View Post
Again I think you can gain some power if you lean it out some, but definitely don't play with the timing unless your going to use 104+
How much timing is really safe to run on the car? I was talking to Kevin and Mark from out in Wallingford and they told me to lean it out some more and bump the timing up a few more degrees and it would make the power.
CTGreen98200SX is offline   Reply With Quote
Old 08-26-2008, 10:17 AM   #10 (permalink)
jp
SE-R Nut

 
Join Date: Aug 2001
Location: Chile
Trader Rating: 0 (0%)

If you know what you are doing .. leave the A/F alone.... well your boost right now its pretty high that its ok if is your boost target. now start to rise the timing until you get some VERY light knock , after you got knock retard timing 1,5 or 2 degrees. 17 degrees from 6500 up seems consevative in your setup
What I always do is set my boost target then dial the A/F and then timing.
We need more details.
__________________
2001 Nissan Primera GX
474whp at 23lbs Stock RR motor.
Chile

Last edited by jp : 08-26-2008 at 10:21 AM.
jp is offline   Reply With Quote
Old 08-26-2008, 10:30 AM   #11 (permalink)
Breaks a lot of sh*t..

 
Join Date: Apr 2008
Location: NE
Trader Rating: 1 (100%)

Quote:
Originally Posted by jp View Post
If you know what you are doing .. leave the A/F alone.... well your boost right now its pretty high that its ok if is your boost target. now start to rise the timing until you get some VERY light knock , after you got knock retard timing 1,5 or 2 degrees. 17 degrees from 6500 up seems consevative in your setup
What I always do is set my boost target then dial the A/F and then timing.
We need more details.
I appreciate some good info. Thank you very much for reading into this. My full motor specs are this:

GT30R Turbo-
CP 8.5:1 Pistons
Eagle Rods
ACL race bearings (rod and main)
ARP Headstuds, mainstuds, and rod bolts
Cometic 86.5mm Head-Gasket
BC springs/retainers
JWT S3 Cams
Greddy Rocker-Arm Stoppers
--------------------
Fuel/Air:
255 Fuel Pump
64# injectors
Nismo FPR @ 51 PSI
Z32 MAF
JWT ECU for turbo/etc..
Greddy E-manage for Air/Fuel adjustment, timing control.
CTGreen98200SX is offline   Reply With Quote
Old 08-26-2008, 10:53 AM   #12 (permalink)
SE-R Nut

 
Join Date: Apr 2002
Location: puerto rico
Trader Rating: 11 (100%)
I think with 20 deg of total advance and 11.5:1 AFR you should make more power and you still safe on 93 pump gas thats just my .02
payu is offline   Reply With Quote
Old 08-26-2008, 12:42 PM   #13 (permalink)
jp
SE-R Nut

 
Join Date: Aug 2001
Location: Chile
Trader Rating: 0 (0%)

What % of inj are you getting? are you sure the sistem do not have a boost leak?
Can you post the dynosheet?
Do you datalog the timing?boost?
Have you cheak the flex pipe?
What type of fmic?
Do you have a catalytic converter?
plugs ,rotor , fuel filter, air filter? are all ok?
jp is offline   Reply With Quote
Old 08-26-2008, 01:32 PM   #14 (permalink)
Breaks a lot of sh*t..

 
Join Date: Apr 2008
Location: NE
Trader Rating: 1 (100%)

Quote:
Originally Posted by jp View Post
What % of inj are you getting? are you sure the sistem do not have a boost leak?
Can you post the dynosheet?
Do you datalog the timing?boost?
Have you cheak the flex pipe?
What type of fmic?
Do you have a catalytic converter?
plugs ,rotor , fuel filter, air filter? are all ok?
1) I'm 99% positive there are no boost leaks. I went through the car very thuroughly before I took it to the dyno and replaced some bad clamps on IC piping. I check vac lines, turbo flange, etc... Spools nice too.
2) I can post dyno sheet in a bit, I'll have to scan it up.
3) I didn't datalog boost/timing.
4) Flexpipe is fine, but I'm not really sure what that would have to do with anything.
5) Precision 600hp FMIC.
6) No Cat when on the dyno and full 3" Turbo-back.
7) Just put plugs in before I got it on the dyno and checked after each pull. All ignition/fuel/air components ok.

Last edited by CTGreen98200SX : 08-26-2008 at 01:33 PM.
CTGreen98200SX is offline   Reply With Quote
Old 08-26-2008, 04:43 PM   #15 (permalink)
jp
SE-R Nut

 
Join Date: Aug 2001
Location: Chile
Trader Rating: 0 (0%)

Quote:
Originally Posted by CTGreen98200SX View Post
1) I'm 99% positive there are no boost leaks. I went through the car very thuroughly before I took it to the dyno and replaced some bad clamps on IC piping. I check vac lines, turbo flange, etc... Spools nice too.
2) I can post dyno sheet in a bit, I'll have to scan it up.
3) I didn't datalog boost/timing.
4) Flexpipe is fine, but I'm not really sure what that would have to do with anything.
5) Precision 600hp FMIC.
6) No Cat when on the dyno and full 3" Turbo-back.
7) Just put plugs in before I got it on the dyno and checked after each pull. All ignition/fuel/air components ok.

Clogged flex pipe for example... that happend to me once after I replace it ( it toke me loooooooooooooooong time to figured out) re dyno again and I found 50whp... so you better take a look, when everything is right some stupid thing can make a lot power loss.
Well something is not working right with your car that is for sure.. there are aprox 80-100whp( depending on what fuel you run) to be gain
Cams are instaled good?
do a comp test and a leak down just to be sure everything is ok...
What boost gauge do you have and from where are you getting the vacum?
jp is offline   Reply With Quote
Old 08-27-2008, 10:21 AM   #16 (permalink)
Breaks a lot of sh*t..

 
Join Date: Apr 2008
Location: NE
Trader Rating: 1 (100%)

Cams are installed good. Everything was torqued to spec with a good torque wrench in all the right orders.
Comp test was 150-145-145-145 (keep in mind 8.5:1 CR now, etc...)
Boost gauge is coming off a tee from the intake manifold I believe. I can double-check if you want.

I think the biggest issue is probably emanage and JWT fighting each other maybe... timing could be different than I think because of that.... It may be much lower. Would the e-manage trump the JWT for timing control, or would the numbers combine and average between the two?

Last edited by CTGreen98200SX : 08-27-2008 at 10:22 AM.
CTGreen98200SX is offline   Reply With Quote
Old 08-27-2008, 06:50 PM   #17 (permalink)
SE-R Newbie

I support the SR20 Forum!
 
Join Date: Aug 2006
Location: Rhode Island
Trader Rating: 10 (100%)

i think you should run just jwt because they do alot of r&d and their computers definetely work. they will put you right in the 11.5 range for afr. i beleive the i was around there. my first pull on the dyno with out tuning or anything, just coming straight off the street i made 300whp at 7 psi. i stopped there. new dyno results will be up soon after i get the setup back together.
axion4888 is online now   Reply With Quote
Old 08-28-2008, 08:44 AM   #18 (permalink)
Breaks a lot of sh*t..

 
Join Date: Apr 2008
Location: NE
Trader Rating: 1 (100%)

Quote:
Originally Posted by axion4888 View Post
i think you should run just jwt because they do alot of r&d and their computers definetely work. they will put you right in the 11.5 range for afr. i beleive the i was around there. my first pull on the dyno with out tuning or anything, just coming straight off the street i made 300whp at 7 psi. i stopped there. new dyno results will be up soon after i get the setup back together.
The only part that sucks is I have 64# injectors and they're running at 51psi FP right now. JWT said they don't have a program for that type of injector (which is why I think Joe put the e-manage in). Also, I've heard that Jim Wolf tune's are way over conservative and you lose a lot of power... But they are VERY RELIABLE.

I think the over-all consensus at this point is that I'm gonna leave the car alone for now (it's running really good!) and sometime in October or so I'm going to invest in Calum, then see what she'll do.
CTGreen98200SX is offline   Reply With Quote
Old 08-28-2008, 02:14 PM   #19 (permalink)
SE-R Nut
 
nissan crazy's Avatar

 
Join Date: Apr 2006
Location: Traverse City MI.
Trader Rating: 7 (100%)

that inj. was a substitute fo peoplle with a 72lb 3bar program , it is just that the other inj. are ran at 4bar , it gets them to around what a 72bl one would flow at 3bar .....
__________________
nx2000 with 20k orig miles and going off the deep end
2000 Xterra ( Wifes new get around)
2004 titan for the towing duties
http://www.cardomain.com/id/edog145
k6 gsxr 600 new toy
and the other hobbie
http://viewmorepics.myspace.com/inde...eID=1261402640
nissan crazy is offline   Reply With Quote
Old 08-28-2008, 02:35 PM   #20 (permalink)
REV it up!!!!!
 
daxx's Avatar

 
Join Date: Sep 2002
Location: Las Vegas
Trader Rating: 36 (97%)

^^^What he said. I ran this setup for awhile and it did well. I trapped 106 on 10lbs of boost on crappy street tires.
__________________
This is for you dad!!!In Loving Memory of JJR,09/23/2006.>>>CAPT. REV
U.I.O.G.D.
SR20DEEP in Vegas
96' SE-R Patience is a Virtue - Full all out wizadry on this build
Pro-tech Design
The Few, The Proud..The NRR
daxx is online now   Reply With Quote
Sponsored Links
Advertisement
 
Reply