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 Good Engine vacuum reading? Apexi SAFC advice
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karism



Online

145 posts
1992 Nissan 200sx. CA18DET
Pretoria
4-22-2008

  Good Engine vacuum reading? Apexi SAFC advice


Halo,

I recently added a Boost gauge to the Datsun.

Can anyone give me an indication of what a good vacuum reading should be for a healthy engine?

Mine is running 20 inch Mercury( 9.9 psi/0.7 bar) at 900rpm.

Another Question ,

I`am looking at installing a Apexi,SAFC.

It looks like it will work with the CA18 ecu?

Will i be able to ad a Z32 maf ,and then sort out the fuel tuning with the SAFC?

Lastly :

Anyone know of a piggyback system that can alter the ignition timing?

Karis




1992 200Sx.Maroon.Safari T25 Turbo.Custom Exhaust.17"wheels.>>Datsun!
1974 Vw Beetle.13B Rotary.Allmost everything Custom made >>Beetor
2004 Opel Corsa Utility.1700 Diesel. 50mpg!! >>

http://www.myspace.com/darkrotor >>Have a look at my cars ?

sydwayz



Offline

65 posts
1992 nissan 240sx
union grove wi
10-3-2007

 « Re: Good Engine vacuum reading? Apexi SAFC advice (karism)


apex-i itc for timing
karism



Online

145 posts
1992 Nissan 200sx. CA18DET
Pretoria
4-22-2008

 « 


thanks for pointing that out!
The_Chosen_One
NICO Powder Coater



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1169 posts
1990 240sx
Boca Raton FL
10-17-2006

 « 


18-20in is good vacuum for a healthy motor. When your crusing on the highway it can get as high as 25in.



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DALAZ_68

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823 posts
240sx
Los Angeles CA
4-9-2007

 « Re: (The_Chosen_One)


Quote, originally posted by The_Chosen_One »
18-20in is good vacuum for a healthy motor. When your crusing on the highway it can get as high as 25in.
so 20 is good for a healthy motor....yay...cuz thats what mine reads...


OP: if u need an N62 MAF lemme know..i have one not in use...perfect condition sir...its because i need the money more than the part ATM



1990 240sx
recently swapped CA18DET 32k miles
Greddy FMIC and Hot pipe
R32 VLSD

SoOn tO cOmE : 5 lug brake upgrade, R32 MAF,KA TB,444cc injectors, aluminum one piece driveshaft, bucket with 4 point harness, Greddy BOV, Standalone,turbo timer...

RS12Turbo



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564 posts

Birmingham AL
8-30-2006

 « Re: (DALAZ_68)


mine reads 20 at cold idle. Once it warms up, it reads 22 at idle




Keith
'84 S12 Turbo; Ca-det powered
'95 Maxima A32
http://www.cardomain.com/id/1984rps12


r34 gtr



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6199 posts
ugly black 89 240sx hatchback
Huntsvegas AL
12-29-2002

 « 


I have no idea what mine reads, because Autometer cannot build gauges that work. I think it gets around 10-12in on startup, and then 15-18 when warm. I do have the TB cracked so the engine will idle though.

I would rather have a Greddy E-Manage Ultimate than any SAFC product. The SAFC just doesn't work as well as I would like. Tuning on that little knob sucks, much better to do it with a laptop.



I'm like the Gangstalicious of NICO.

Quote, originally posted by Jesda »
Side note: People in the mortgage industry do a lot of cocaine.


ryan: It's not that I think he's retarded. It's that I was the one that gave him his gold medal at the special olympics. I KNOW tim is retarded. I hope I never meet him in real life actually. I'm like 6'2" 185lbs. Tim is prob like 6'7" 300lbs and eats live baby sheep for snacks during the day.

RS12Turbo



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564 posts

Birmingham AL
8-30-2006

 « Re: (r34 gtr)


Quote, originally posted by r34 gtr »
I have no idea what mine reads, because Autometer cannot build gauges

Thats why I have Stewart Warner gauges

Ca_Silvia



Offline

547 posts

Calgary
11-18-2005

 « Re: (RS12Turbo)


Quote, originally posted by RS12Turbo »
mine reads 20 at cold idle. Once it warms up, it reads 22 at idle

Oh **** im jealous...15-17 cold or warm



Aaron

biosehnsucht



Offline

1711 posts

Dallas TX
2-27-2004

 « Re: (r34 gtr)


Quote, originally posted by r34 gtr »
I have no idea what mine reads, because Autometer cannot build gauges that work. I think it gets around 10-12in on startup, and then 15-18 when warm. I do have the TB cracked so the engine will idle though.

cracking the TB will hurt your idle readings because of the velocity / pressure drop since it has a larger surface area to come in through than the normal idle thing... probably if you had a "proper" idle control setup it'd be more normal reading..

this won't affect non idle driving of course, but makes it impossible to use idle readings as any sort of diagnostic



89 240SX Red Fastback beater Car Status
karism



Online

145 posts
1992 Nissan 200sx. CA18DET
Pretoria
4-22-2008

 « 


Thanks!Now i feel more at ease.

Well,i will be looking at the SAFC II.The one with the knobs just plain sucks!

Only thing with the E-manage is : It still cant alter the timing like i want it too.The SAFC II is half of the price of it!

karis

Indecisive

Offline

116 posts
1987 200sx Turbo
Surrey BC
7-7-2006

 « Re: (karism)


Quote, originally posted by karism »
Thanks!Now i feel more at ease.

Well,i will be looking at the SAFC II.The one with the knobs just plain sucks!

Only thing with the E-manage is : It still cant alter the timing like i want it too.The SAFC II is half of the price of it!

karis

There is an optional Ignition harness available so you can adjust the timing.

dash

Offline

249 posts
s13 ca18
dirty south
5-5-2006

 « 


greddy emanage blue, perhaps the cheapest piggyback to control fuel & timing.
Some 300hp ca18s use EM blue. A good ca18/EM writeup somewhere on here.
Needs a laptop to tune tho

trick with the timing is to advance the CAS an use the EM for the retard curve



sydwayz



Offline

65 posts
1992 nissan 240sx
union grove wi
10-3-2007

 « Re: (dash)


y dont u get the safc-neo?
karism



Online

145 posts
1992 Nissan 200sx. CA18DET
Pretoria
4-22-2008

 « Re: (dash)


Quote, originally posted by dash »
greddy emanage blue, perhaps the cheapest piggyback to control fuel & timing.
Some 300hp ca18s use EM blue. A good ca18/EM writeup somewhere on here.
Needs a laptop to tune tho

trick with the timing is to advance the CAS an use the EM for the retard curve

Hmm i see!

The biggest factor at this stage is cost.I can get the SAFC II for a decent price.The Emanage is allso available,it costs a hell of allot more ,even without the Timing harness. SAFC II R3300 ; Emanage R5700

Lastly , I really dont want another car that i have to use a laptop for tuning.My beetle is allready like that. Havent gotten to tuning yet.But the hassle is a bit annoying.

I like to tinker with settings,hahaha

*Edit* where can i find specs on the Apexi SITC? Darnit,not much on Google

Karis

freakyjason

Offline

417 posts
1990 240sx
Gardiner NY
11-14-2005

 « Re: (karism)


Not to thread jack at all here but my s13 sr gets about 23.5 in mg at idle when warm and sometimes goes higher (depending on how i've been driving). is this a problem some how? When i first installed the boost gauge it always read 20 no matter what but then i tightened some stuff up and it went up to about 23.5.




sydwayz



Offline

65 posts
1992 nissan 240sx
union grove wi
10-3-2007

 « Re: (freakyjason)


what do u need to know about the itc? im running 1 now with a neo and a vpc
 

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