Installed 3.12 Pulley!!
Originally Posted by zachcrosen
Well, the Z1 tune was with the 3.33 pulley while the CP Racing tune was with the 3.12 pulley. I dont really want to start a lot of **** with Z1.
.the only way they can know they are **** is if you give them feedback, but then again, maybe they are like 350zforums and don't give a **** that they are ****.
if i were you, i would let the other boards know, too, but that's just me.
i'm glad you're feeling good about your z again.
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From: Jacksonville , AL
Originally Posted by Z BOY
well, at least you let us know (with some prodding) .
the only way they can know they are **** is if you give them feedback, but then again, maybe they are like 350zforums and don't give a **** that they are ****.
if i were you, i would let the other boards know, too, but that's just me.
i'm glad you're feeling good about your z again.
.the only way they can know they are **** is if you give them feedback, but then again, maybe they are like 350zforums and don't give a **** that they are ****.
if i were you, i would let the other boards know, too, but that's just me.
i'm glad you're feeling good about your z again.
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From: Charlotte, NC
Originally Posted by backagain
i had the bolt on the *** belt pulley come completely off while driving, luckily it fell in the engine bay and i found it about 3 months later, bolt was stripped completely off, it was held on by glue, i had boost surges from the bypass valve, my aux fuel pump came disconnected, and they had WAY too much timing pulled. tried FOREVER to contact them to get these issues fixed, they never would return my call (jon) and was told by Lorca to NEVER call his cell number again, and that he only gave me his number for when he brought me my car because they took an extra week to install the vortech, supposed to take 2 days. anyway, i won't go into ALL of it but i was very upset with z1motorsports as well. -1 in my book. not starting a z1bashing thread or anything just thought i'd chime in with my problems with them as well. CPracing all the way. 
The rest of your items just sound like a poor install.
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From: Jacksonville , AL
Originally Posted by CpraceZ
Glad you are happy with your car, sorry I could not be here to meet you. If you every need anything just let us know.
Zach
Originally Posted by CpraceZ
Glad you are happy with your car, sorry I could not be here to meet you. If you every need anything just let us know.
Cp, off topic but in a previous thread it was stated that most good r4 tuners(insert your name here) will tune fuel via rpm and timing via psi. What is your opinion on that. Thanks for the semi hijack zac.
The R4 software has fuel and spark set up in two different maps - both maps (tables) have RPM on the Vetical axis and PSI (Vacuum / Boost) on the Horizontal axis. As for tuning you really need to do it opposite of what you mentioned. Timing can be set via RPM - in other words, you can set up the software to take out 1 degree of timing at 4000 RPM accross the board regardless of the boost, 2 degrees at 4500 RPM, and so on. The fuel is much more sensitive to boost, if you tune fuel by RPM and get more or less boost than expected you vehicle will go either too rich or worse too lean. Therefore, we always tune fuel based on boost and RPM. this way you can account for belt slippage, or a owner that decides to do his own pulley swap
so by what you just said i could put on a smaller pulley and not require a retune ?
but then again if a smaller pulley was put on i'd probably hit more boost, and my car isn't tuned for anything above 8 psi correct ? (remember we only hit 7.9 psi)
but then again if a smaller pulley was put on i'd probably hit more boost, and my car isn't tuned for anything above 8 psi correct ? (remember we only hit 7.9 psi)
so by that it wouldn't be worth the smaller pulley because if it's that rich it isn't making much more power with all the fuel ?
also does the smaller pulley help with power coming quicker ?
also does the smaller pulley help with power coming quicker ?
BOOST 6 6.5 7 7.5 8 8.5 9 9.5 10 10.5
r
p
m
3500 9.8 9.8 9.8 10 10 10 10 10 10 10 10 10 10 10 10
4000 8 8 8 8 8 8 8 10 10 10 10 10 10 10 10 10 10 10 10
4500 7.2 7.2 7.2 7.2 7.2 7.2 7.2 10 10 10 10 10 10 10 10
5000 7.2 7.2 7.2 7.2 7.2 7.2 7.2 7.2 10 10 10 10 10 10 10
5500 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 10 10 10 10 10 10
6000 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 10 10 10 10 10
6500 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 10 10 10 10 10
7000 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 10 10 10 01
This is how I asure if I get more boost I'll have plenty of fuel . I datalog what psi I have at what rpm and then after that I keep the number high . This is not my map..just an example
R
P
M
r
p
m
3500 9.8 9.8 9.8 10 10 10 10 10 10 10 10 10 10 10 10
4000 8 8 8 8 8 8 8 10 10 10 10 10 10 10 10 10 10 10 10
4500 7.2 7.2 7.2 7.2 7.2 7.2 7.2 10 10 10 10 10 10 10 10
5000 7.2 7.2 7.2 7.2 7.2 7.2 7.2 7.2 10 10 10 10 10 10 10
5500 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 10 10 10 10 10 10
6000 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 10 10 10 10 10
6500 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.5 10 10 10 10 10
7000 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 6.8 10 10 10 01
This is how I asure if I get more boost I'll have plenty of fuel . I datalog what psi I have at what rpm and then after that I keep the number high . This is not my map..just an example
R
P
M
Last edited by booger; Sep 14, 2005 at 03:46 PM.
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From: Charlotte, NC
Originally Posted by backagain
so by that it wouldn't be worth the smaller pulley because if it's that rich it isn't making much more power with all the fuel ?
also does the smaller pulley help with power coming quicker ?
also does the smaller pulley help with power coming quicker ?
The best gain for us with a smaller pulley is to hit higher boost levels sooner in the powerband.
Sounds like CPRacing is tuning us to be safe for a pulley upgrade, but IMO you should always plan to retune with a change like that to ensure you're getting the best bang for your buck.
Just so happens I know a great tuning shop you can take it to...
ZachRosen:: I had my vortech and installed and tuned by AAM and i made 384 hp @ 9 psi on the stock pulley,, after they dynoed my car they thought i was running the 3.12 pulley and so did i cause of the high numbers however i talked to the guy i bought the kit from and he assured me that he sold me the stock pulley and belt. Weird but im not complaining at all. my air fuel stayed perfect till about 6600 rpms
CPracez:: if i install the 3.12 pulley when i am getting 9 psi with the stock pulley am i going to be at around 11 psi? is that safe? i definatly want bigger injectors as is, would 440 rc be enough or should i go to 520s? Also if im at 9psi and upgrade my hp levels should be over 400 right?
CPracez:: if i install the 3.12 pulley when i am getting 9 psi with the stock pulley am i going to be at around 11 psi? is that safe? i definatly want bigger injectors as is, would 440 rc be enough or should i go to 520s? Also if im at 9psi and upgrade my hp levels should be over 400 right?
You should be in the area of 400hp do you have headers and a Cat-back? They might be needed because with increasing the boost you also are increasing the air flow which with out exhaust you may have to much back pressure. 440ccs should be plenty, going with the 520ccs you might have to check if the Split Second software, or the SAFC which I see you have has the capabilities to tune that big of injector, you might have to step up to a Greddy Emanage.
I have the Injen exhasut and HF cats, thinking about swapping to test pipes, but i dont want that smell thats gonna go along with them.... I am also thinking about headers however that makes the car real loud. The 440s are going to go in within a week or two
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From: GA
Originally Posted by 2003z
not to knock z1, but when I just installed a vortech on my buddies G35c, we first had to remove the underdrive pulley they installed. We tried a breaker bar, the breaker bar on the floor and turning over the engine and my impact wrench to break the pulley bolt free. I don't know what they used to tighten it, but it finally took a semi-truck tire changing company to come out. He started with his normal impact wrench, then tried an 800lb impact wrench and then finally, after about 5 minutes of banging on it with his 1400ft.lb. impact wrench, we finally got the bolt off!
I've had to fix several things on my friend's cars that they have installed.
I've had to fix several things on my friend's cars that they have installed.
That "buddy" would be me!
The reason that they put the crank pulley on for me.....is cause I had a credit.
The reason I had a credit.....is from a previous mess up.
You figure it out for yourselves.......
Me, I'm going to CP Race to get mine tuned as soon as I can get there.
Originally Posted by CpraceZ
You should be in the area of 400hp do you have headers and a Cat-back? They might be needed because with increasing the boost you also are increasing the air flow which with out exhaust you may have to much back pressure. 440ccs should be plenty, going with the 520ccs you might have to check if the Split Second software, or the SAFC which I see you have has the capabilities to tune that big of injector, you might have to step up to a Greddy Emanage.
1. I drove from Oviedo, FL right past z1 straight to CPRacing for my Vortech install and tuning.
2. My set up consists of Crawford headers, h/f cats and plenum and a JIC Y-Pipe. I have the 3.12 pulley and my A/F is hitting anywhere from high 10's to high 11's at WOT. The kit puts out are 388rwhp and 331rwtq 'tuned' at 9psi on 93 octane.
G8tor20 has the 3.12 pulley and only Crawford cats. He is hitting 385rwhp and 314rwtq at 10.5psi on 93 octane and his torque is lower than mine when you overlay the graphs by a good amount from ~3000rpms on.
If you're looking for a 'pick me up' on the low end, check out the Crawford headers (or possibly another brand). They seem to be working really well for me.
3. +1,000,000 on the work that CP Racing does. I'd gladly drive another 8 hours for that kind of service.
2. My set up consists of Crawford headers, h/f cats and plenum and a JIC Y-Pipe. I have the 3.12 pulley and my A/F is hitting anywhere from high 10's to high 11's at WOT. The kit puts out are 388rwhp and 331rwtq 'tuned' at 9psi on 93 octane.
G8tor20 has the 3.12 pulley and only Crawford cats. He is hitting 385rwhp and 314rwtq at 10.5psi on 93 octane and his torque is lower than mine when you overlay the graphs by a good amount from ~3000rpms on.
If you're looking for a 'pick me up' on the low end, check out the Crawford headers (or possibly another brand). They seem to be working really well for me.
3. +1,000,000 on the work that CP Racing does. I'd gladly drive another 8 hours for that kind of service.
Last edited by neffster; Sep 16, 2005 at 03:10 AM.
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From: Charlotte, NC
Originally Posted by neffster
2. My set up consists of Crawford headers, h/f cats and plenum and a JIC Y-Pipe. I have the 3.12 pulley and my A/F is hitting anywhere from high 10's to high 11's at WOT. The kit puts out are 388rwhp and 331rwtq 'tuned' at 9psi on 93 octane.
G8tor20 has the 3.12 pulley and only Crawford cats. He is hitting 385rwhp and 314rwtq at 10.5psi on 93 octane and his torque is lower than mine when you overlay the graphs by a good amount from ~3000rpms on.
If you're looking for a 'pick me up' on the low end, check out the Crawford headers (or possibly another brand). They seem to be working really well for me.
G8tor20 has the 3.12 pulley and only Crawford cats. He is hitting 385rwhp and 314rwtq at 10.5psi on 93 octane and his torque is lower than mine when you overlay the graphs by a good amount from ~3000rpms on.
If you're looking for a 'pick me up' on the low end, check out the Crawford headers (or possibly another brand). They seem to be working really well for me.