17psi, here i come
3rd motors a charm I hope
Joined: Apr 2003
Posts: 2,054
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From: Central New York
Originally posted by rdavidsrx7
Definetly interested to see the results with the AEM also! I was running 16psi's consistently on a stock fuel system but with an upgraded ecu, and large smic. Felt awesome, now I have an untuned PFC and don't want to go past 12psi, I miss those extra 4psi.
Off topic.....fastcarfreak, was that your T-78 at kd getting tuned a couple weeks back? Looked and sounded nice while Dave was gettin into it!
Definetly interested to see the results with the AEM also! I was running 16psi's consistently on a stock fuel system but with an upgraded ecu, and large smic. Felt awesome, now I have an untuned PFC and don't want to go past 12psi, I miss those extra 4psi.
Off topic.....fastcarfreak, was that your T-78 at kd getting tuned a couple weeks back? Looked and sounded nice while Dave was gettin into it!
Adam
Lives on the Forum
Joined: Mar 2001
Posts: 5,014
Likes: 40
From: CT
Originally posted by rdavidsrx7
Definetly interested to see the results with the AEM also! I was running 16psi's consistently on a stock fuel system but with an upgraded ecu, and large smic. Felt awesome, now I have an untuned PFC and don't want to go past 12psi, I miss those extra 4psi.
Off topic.....fastcarfreak, was that your T-78 at kd getting tuned a couple weeks back? Looked and sounded nice while Dave was gettin into it!
Definetly interested to see the results with the AEM also! I was running 16psi's consistently on a stock fuel system but with an upgraded ecu, and large smic. Felt awesome, now I have an untuned PFC and don't want to go past 12psi, I miss those extra 4psi.
Off topic.....fastcarfreak, was that your T-78 at kd getting tuned a couple weeks back? Looked and sounded nice while Dave was gettin into it!
Lives on the Forum
Joined: Mar 2001
Posts: 5,014
Likes: 40
From: CT
Originally posted by rdavidsrx7
Wow lots of silver FDs with T78s around then. Good luck with the new engine, and injector.
oh and thanks for the input Matty ;-)
Wow lots of silver FDs with T78s around then. Good luck with the new engine, and injector.
oh and thanks for the input Matty ;-)
Last edited by matty; Mar 29, 2004 at 02:52 PM.
Originally posted by fastcarfreak
so are you saying that c16 gas doesnt come from a pump. Does it just get poored into gas tanks and containers from big jugs? just kidding, i know what you mean. On another note, i ran 19 psi on 93 octane with absolutely no sign of detonation. I am going to be running 20+ psi on pump gas when my car gets tuned again by KDR. We are thinking 22 psi on 94 octane gas. Skips anti detonation device definately does the job of allowing to run high boost settings without the detonation. For anyone going to Rotary Revolution, you guys will be able to witness me running 20+ psi on pump with a T78.
Adam
so are you saying that c16 gas doesnt come from a pump. Does it just get poored into gas tanks and containers from big jugs? just kidding, i know what you mean. On another note, i ran 19 psi on 93 octane with absolutely no sign of detonation. I am going to be running 20+ psi on pump gas when my car gets tuned again by KDR. We are thinking 22 psi on 94 octane gas. Skips anti detonation device definately does the job of allowing to run high boost settings without the detonation. For anyone going to Rotary Revolution, you guys will be able to witness me running 20+ psi on pump with a T78.
Adam
Hey, where did my $$$ go?
Joined: Feb 2001
Posts: 4,413
Likes: 0
From: Bimingham, AL
Yea, I've heard you can run 20psi on pump gas with KDR's device....the only prob is that I've also heard you HAVE to run 20psi to make any power lol
Evedently you make less hp at the same boost with the device versus without the device.
Will be interesting to see first hand though!!!
STEPHEN
Evedently you make less hp at the same boost with the device versus without the device.
Will be interesting to see first hand though!!!
STEPHEN
PV = nRT
Joined: Jan 2003
Posts: 2,250
Likes: 0
From: New Zealand (was California)
Originally posted by 93BlackFD
do you believe everything you hear?
how much boost was john running when he pulled a 10.98?
think for yourself, try new things
and efficiency has a lot to do with flow and a little to do with pressure, i doubt my motors flows with the same characteristics as a stock/street port
do you believe everything you hear?
how much boost was john running when he pulled a 10.98?
think for yourself, try new things
and efficiency has a lot to do with flow and a little to do with pressure, i doubt my motors flows with the same characteristics as a stock/street port
In addition to an increased baseline CFM over stock ports, you are also increasing the pressure at which the sysem will operate at. The two being interconnected will result in more volume than the twins will withstand reliably. Not to mention the jacked up IATs.
PV = nRT
Joined: Jan 2003
Posts: 2,250
Likes: 0
From: New Zealand (was California)
Originally posted by SPOautos
With the stock IC running 15psi at the manifold is about 19-20 at the turbos. That is basically RIGHT at the limit before they start SUPER heating the air.
If you make a 4th gear pull and your air temps raise more than a few degrees C then your out of the eff range.
You need to check those air temps in 4th gear and make sure they arent rising to much. Based on experience I'd say they are probably raising around 5C with a 4th gear pull, and that would be too much
BTW - This is why having a good IC with low pressure drop is so important with running high boost on the twins.
STEPHEN
With the stock IC running 15psi at the manifold is about 19-20 at the turbos. That is basically RIGHT at the limit before they start SUPER heating the air.
If you make a 4th gear pull and your air temps raise more than a few degrees C then your out of the eff range.
You need to check those air temps in 4th gear and make sure they arent rising to much. Based on experience I'd say they are probably raising around 5C with a 4th gear pull, and that would be too much
BTW - This is why having a good IC with low pressure drop is so important with running high boost on the twins.
STEPHEN
I can personally validate those PSI figures with a stock IC.
I've even see the following:
19 psi at manifold, .90 kg measured by map sensor.
3rd motors a charm I hope
Joined: Apr 2003
Posts: 2,054
Likes: 0
From: Central New York
Originally posted by SPOautos
Yea, I've heard you can run 20psi on pump gas with KDR's device....the only prob is that I've also heard you HAVE to run 20psi to make any power lol
Evedently you make less hp at the same boost with the device versus without the device.
Will be interesting to see first hand though!!!
STEPHEN
Yea, I've heard you can run 20psi on pump gas with KDR's device....the only prob is that I've also heard you HAVE to run 20psi to make any power lol
Evedently you make less hp at the same boost with the device versus without the device.
Will be interesting to see first hand though!!!
STEPHEN
Adam
PV = nRT
Joined: Jan 2003
Posts: 2,250
Likes: 0
From: New Zealand (was California)
Originally posted by fastcarfreak
yeah but you generally get an increase in torque equal to loss in hp. I guess it may balance out. i made over 400 rwhp and 350 rwtq on stock motor at 19 psi with very conservative tuning in 3rd gear (hp would be up a little if dynoed in 4th). I was extremely happy and i usually only drive around on 13 psi anyways. I will let everyone know the numbers i am gonna be making with my street ported motor. Im excited to see what i can run at the strip without getting kicked out for not having a cage.
Adam
yeah but you generally get an increase in torque equal to loss in hp. I guess it may balance out. i made over 400 rwhp and 350 rwtq on stock motor at 19 psi with very conservative tuning in 3rd gear (hp would be up a little if dynoed in 4th). I was extremely happy and i usually only drive around on 13 psi anyways. I will let everyone know the numbers i am gonna be making with my street ported motor. Im excited to see what i can run at the strip without getting kicked out for not having a cage.
Adam
hp = (torque * rpm) / 5252
Thread Starter
built my own engine
Joined: Dec 2002
Posts: 3,470
Likes: 2
From: Buckhead, Atlanta
okay, sorry i confused you guys, i have just about everything you can bolt on, i.e, FMIC, big fuel system, haltech, etc...
steve kan tuned the car, i hit breakup at 12psi...the only thing i am lacking is the ignition amp, he's adjusted the fuel adequately so that i should be fine as far as AFR goes....
so now, i am happy to say, i can go beyond 12psi
i could care less about what the stock twins can handle, or how quickly they will blow, i have 5 or 6 sets of twins (ask anyone who knows me) i am trying to beat the 403rwhp record from stock twins
as far as the physics of turbo chargers go, we will simply have to see! i don't really want to sit around and argue with people who while fighting with me about how stupid i am, are posting questions about which vaccum line goes where
i will post a full writeup (as i usually do) of the AEM unit, and i am trying to work with haltech and AEM to figure out a way to eliminate the stock ignitor
after i get where i want to be with the twins
steve kan tuned the car, i hit breakup at 12psi...the only thing i am lacking is the ignition amp, he's adjusted the fuel adequately so that i should be fine as far as AFR goes....
so now, i am happy to say, i can go beyond 12psi
i could care less about what the stock twins can handle, or how quickly they will blow, i have 5 or 6 sets of twins (ask anyone who knows me) i am trying to beat the 403rwhp record from stock twins
as far as the physics of turbo chargers go, we will simply have to see! i don't really want to sit around and argue with people who while fighting with me about how stupid i am, are posting questions about which vaccum line goes where
i will post a full writeup (as i usually do) of the AEM unit, and i am trying to work with haltech and AEM to figure out a way to eliminate the stock ignitor
after i get where i want to be with the twins
3rd motors a charm I hope
Joined: Apr 2003
Posts: 2,054
Likes: 0
From: Central New York
I commend you for trying to break the 403 record. That is pretty damn cool if you do. But you may want to think about having 5 or 6 motors to go with them twins. Well im sure you can do it withing a motor or 2. good luck man. Keep us updated.
Thread Starter
built my own engine
Joined: Dec 2002
Posts: 3,470
Likes: 2
From: Buckhead, Atlanta
why would i need multiple motors? pushing 17psi on the stock twins is nowhere near the stress i'm sure my motor could handle
thanks marshall
clayne: no, he's a friend
i just hate how this site has become overrun with people who follow the "newbie site" like a bible and then argue with people who do their own thing (like me)
thanks marshall
clayne: no, he's a friend
i just hate how this site has become overrun with people who follow the "newbie site" like a bible and then argue with people who do their own thing (like me)
Originally posted by fastcarfreak
I dont think it was mine. Mine was tuned back in october or november (dont remember which), but it was down there a couple weeks ago. We put the kaaz differential in there. Then of course something had to go wrong and the motor went (primary injector sticking during 13 psi boosting) when i got it home. They have the car again and are gonna be building me a bad *** motor. We are gonna tune it for 20+ psi on pump gas.
Adam
I dont think it was mine. Mine was tuned back in october or november (dont remember which), but it was down there a couple weeks ago. We put the kaaz differential in there. Then of course something had to go wrong and the motor went (primary injector sticking during 13 psi boosting) when i got it home. They have the car again and are gonna be building me a bad *** motor. We are gonna tune it for 20+ psi on pump gas.
Adam
Thread Starter
built my own engine
Joined: Dec 2002
Posts: 3,470
Likes: 2
From: Buckhead, Atlanta
new developments:
Hello Brian,
You can bypass the standard ignition modules and use the
CDI unit as the ignition module. Ensure that you have the correct DIP switch
settings on the back of the AEM unit.
If there is anything else i can do to help, please let me know.
Kind Regards,
Matt Wright
Haltech sales/support
www.haltech.com
P.S. If replying to this email please include any previous emails to aid in
a quick response.
----- Original Message -----
From: "Brian Thompson" <b_thompson@bellsouth.net>
To: "Haltech Support" <support@haltech.com.au>
Sent: Tuesday, March 30, 2004 2:12 AM
> i just recently bought the AEM C2DI ignition amp, it handles leading and
> trailing coils, and i was wondering with the e6x, could i bypass the stock
> ignitor, and wire it directly to the AEM unit?
>
>
Hello Brian,
You can bypass the standard ignition modules and use the
CDI unit as the ignition module. Ensure that you have the correct DIP switch
settings on the back of the AEM unit.
If there is anything else i can do to help, please let me know.
Kind Regards,
Matt Wright
Haltech sales/support
www.haltech.com
P.S. If replying to this email please include any previous emails to aid in
a quick response.
----- Original Message -----
From: "Brian Thompson" <b_thompson@bellsouth.net>
To: "Haltech Support" <support@haltech.com.au>
Sent: Tuesday, March 30, 2004 2:12 AM
> i just recently bought the AEM C2DI ignition amp, it handles leading and
> trailing coils, and i was wondering with the e6x, could i bypass the stock
> ignitor, and wire it directly to the AEM unit?
>
>
Rotary Freak
Joined: Feb 2001
Posts: 1,926
Likes: 0
From: fort worth, tx, usa
Hey Brian,
Don't try to run higher boost w/o tuning it. Your car is *NOT TUNED* for that (hence, the breakup). It'll need more tuning on anything above 12psi to get the a/f dial in properly.
Don't try to run higher boost w/o tuning it. Your car is *NOT TUNED* for that (hence, the breakup). It'll need more tuning on anything above 12psi to get the a/f dial in properly.
Originally posted by 93BlackFD
why would i need multiple motors? pushing 17psi on the stock twins is nowhere near the stress i'm sure my motor could handle
thanks marshall
clayne: no, he's a friend
i just hate how this site has become overrun with people who follow the "newbie site" like a bible and then argue with people who do their own thing (like me)
why would i need multiple motors? pushing 17psi on the stock twins is nowhere near the stress i'm sure my motor could handle
thanks marshall
clayne: no, he's a friend
i just hate how this site has become overrun with people who follow the "newbie site" like a bible and then argue with people who do their own thing (like me)
Thread Starter
built my own engine
Joined: Dec 2002
Posts: 3,470
Likes: 2
From: Buckhead, Atlanta
i figured that much, i've already got 5 people together for you to make another trip out here (hopefully you'll fly this time)
remember the 350z? him and a few others
remember the 350z? him and a few others
Thread Starter
built my own engine
Joined: Dec 2002
Posts: 3,470
Likes: 2
From: Buckhead, Atlanta
Hello Brian,
With no ignitor i would suggest setting the CDI unit
with S2 on - such that it is setup to be triggered by a digital signal, set
the software up as contant charge, 3ms charge time output edge falling.
If there is anything else i can do to help, please let me know.
Kind Regards,
Matt Wright
Haltech sales/support
www.haltech.com
P.S. If replying to this email please include any previous emails to aid in
a quick response.
----- Original Message -----
From: "Brian Thompson" <b_thompson@bellsouth.net>
To: "Haltech Support" <support@haltech.com.au>
Sent: Tuesday, March 30, 2004 11:20 AM
Subject: Re:
> here's the three switches:
>
> Switch 1 Multi Strike Disable - S1 enables or disables multi-strike
spark
> plug firings. Disabling Multi-strike (S1-ON) makes engine timing much
easier
> to check. Enabling MultiStrike (S1- Off, Default) makes the engine run
> smoother at low speeds.
>
> Switch 2 Trigger Edge - S2 sets the input trigger edge that the C2DI uses
> to trigger the spark plug firing. Rising edge (S2-OFF-Default) is used
when
> the C2DI is wired in AFTER the ignitor (Ignition Amplifier) or if the
> ignition did not have an external ignitor and there is not one inside the
> coils. Falling edge (S2-ON) is used when the C2DI is wired directly to the
> ECU and the ignition trigger is a digital signal with high signifying
dwell
> time.
>
> Switch 3 Wasted Spark - S3 programs the ignition for use on engines
> equipped with a single coil per cylinder (720 firing S3- ON), or dual
output
> coil feeding 2 cylinders (360 firing S3-Off-Default)
>
> what's your take?
>
> by the way, I am sharing all of your information with the RX-7 Community,
so
> hopefully you won't have to walk any others through this
>
> Thanks Matt!
With no ignitor i would suggest setting the CDI unit
with S2 on - such that it is setup to be triggered by a digital signal, set
the software up as contant charge, 3ms charge time output edge falling.
If there is anything else i can do to help, please let me know.
Kind Regards,
Matt Wright
Haltech sales/support
www.haltech.com
P.S. If replying to this email please include any previous emails to aid in
a quick response.
----- Original Message -----
From: "Brian Thompson" <b_thompson@bellsouth.net>
To: "Haltech Support" <support@haltech.com.au>
Sent: Tuesday, March 30, 2004 11:20 AM
Subject: Re:
> here's the three switches:
>
> Switch 1 Multi Strike Disable - S1 enables or disables multi-strike
spark
> plug firings. Disabling Multi-strike (S1-ON) makes engine timing much
easier
> to check. Enabling MultiStrike (S1- Off, Default) makes the engine run
> smoother at low speeds.
>
> Switch 2 Trigger Edge - S2 sets the input trigger edge that the C2DI uses
> to trigger the spark plug firing. Rising edge (S2-OFF-Default) is used
when
> the C2DI is wired in AFTER the ignitor (Ignition Amplifier) or if the
> ignition did not have an external ignitor and there is not one inside the
> coils. Falling edge (S2-ON) is used when the C2DI is wired directly to the
> ECU and the ignition trigger is a digital signal with high signifying
dwell
> time.
>
> Switch 3 Wasted Spark - S3 programs the ignition for use on engines
> equipped with a single coil per cylinder (720 firing S3- ON), or dual
output
> coil feeding 2 cylinders (360 firing S3-Off-Default)
>
> what's your take?
>
> by the way, I am sharing all of your information with the RX-7 Community,
so
> hopefully you won't have to walk any others through this
>
> Thanks Matt!
1JZ powered
Joined: Jul 2001
Posts: 4,423
Likes: 0
From: Where there's only two seasons, hot and wet! I love Okinawa
Originally posted by 93BlackFD
i just hate how this site has become overrun with people who follow the "newbie site" like a bible and then argue with people who do their own thing (like me)
i just hate how this site has become overrun with people who follow the "newbie site" like a bible and then argue with people who do their own thing (like me)
3rd motors a charm I hope
Joined: Apr 2003
Posts: 2,054
Likes: 0
From: Central New York
Originally posted by the_glass_man
Adam, you blew your engine with the anti detonation device?
Adam, you blew your engine with the anti detonation device?
Adam
Hi Powr FD's
Joined: Oct 2002
Posts: 806
Likes: 0
From: OKC
I have a backup set of stock twins so I too had mine tuned by Steve for about 17psi.
My twins had been in great condition with no shaft play and no oil coming from them.
After the street tune session, I got home and there was gobs of oil in the tubes, and I mean alot. I had to pull the motor for other reasons and and inspected everything and was definetly from the turbos.
Id say for quick 1/4 burst of 17psi, maybe not so bad. But a few hwy runs like that and those little guys are gonna be toast soon.
My twins had been in great condition with no shaft play and no oil coming from them.
After the street tune session, I got home and there was gobs of oil in the tubes, and I mean alot. I had to pull the motor for other reasons and and inspected everything and was definetly from the turbos.
Id say for quick 1/4 burst of 17psi, maybe not so bad. But a few hwy runs like that and those little guys are gonna be toast soon.
Hey, where did my $$$ go?
Joined: Feb 2001
Posts: 4,413
Likes: 0
From: Bimingham, AL
So if the cause was excesive heat I'd imagine that would come from the "device" dicking around with the tuning.....I mean if nothing else is wrong it would basically HAVE to be from tuning. In that case is Dave going to redo the engine for free???
STEPHEN
STEPHEN