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Location:
Central Coast
Registered:
June 2002
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boost control and da 1j
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Thu, 09 December 2004 00:59
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hi guys i know this topic has been discussed in length before but i would like some help. i have a blitz dualSBC which i used on my celica with no problems, then when i installed it on my cressida it wasnt as accurate ( would spike a little, at this point mods were filter and dumps), then i added an intercooler (read very large) and now it spikes out of control i have seen spikes of up to 1.6bar (the unit has a peak hold boost) this is with std fuel cut in place so my car would cut. so i reduced all the settings on the controller to try to bring it back with no luck, i then just tried shutting the unit off (should be stock) and the same thing happened, now my head gasket is gone, not surprising considering the boost it was seeing with no fuel.
so should i throw the SBC in the bin and get something like celicamads one or a bleeder??
Thanks
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Location:
Perth
Registered:
October 2002
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Re: boost control and da 1j
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Thu, 09 December 2004 01:29
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Nah, IMHO you can't beat an electronic boost controller. Have you tuned it on a dyno?
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I supported Toymods
On probation
Location:
Brisbane, Queensland
Registered:
January 2003
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Location:
Central Coast
Registered:
June 2002
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Re: boost control and da 1j
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Thu, 09 December 2004 01:45
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i havent tuned it on the dyno i just street tuned it, but it didnt make any differnce when i turned all the settings down.
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Location:
Brisbane
Registered:
July 2002
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Location:
Central Coast
Registered:
June 2002
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Re: boost control and da 1j
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Thu, 09 December 2004 03:05
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the hoses are as short as i can get them, they go straight from the housing and join at a T in about the center of the turbos then the same from the wastegate.
very nice diagram by the way
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Location:
Brisbane
Registered:
July 2002
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Re: boost control and da 1j
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Thu, 09 December 2004 03:29
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| sxturbo wrote on Thu, 09 December 2004 14:05 |
the hoses are as short as i can get them, they go straight from the housing and join at a T in about the center of the turbos then the same from the wastegate.
very nice diagram by the way
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thx, made it a while ago
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Location:
Sydney
Registered:
January 2003
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Re: boost control and da 1j
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Thu, 09 December 2004 05:33
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Which DUAL SBC do you have?
From about the DUAL SBC spec R they started getting decent, before that they werent that good.
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Location:
newcastle
Registered:
June 2002
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Re: boost control and da 1j
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Sun, 12 December 2004 10:26
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i have recieved many emails regarding the same prob it would appear (its a guess) that the soleniod gets a little worn or maybe coil issues . however replacing the solenoid seems to fix the problem for about a year but at $150 its a band aid .
once you have your engine back on track fell free to email me sales@hiperboost.com
all i can say is simplly fit a hiperboost ....yeah i knmow its a plug but i can guarantee its its results and so can 50 or so people on these forums .
if your not doing the head gasket for a while hang off for the new electronic model coming soon (doesnt work any better but has bling value)
sell the blitz and it will work fine on a single wastegate
otherwise replace the solenoid in mosty cases it has fixed the problem
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Registered:
December 2003
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Re: boost control and da 1j
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Sun, 12 December 2004 11:36
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top graphic
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Location:
sydney
Registered:
November 2004
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Location:
Brisbane
Registered:
July 2002
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Re: boost control and da 1j
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Sun, 12 December 2004 13:20
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| muzzyttt wrote on Sun, 12 December 2004 23:24 |
i have an apexi boost controller.and apart from the bling factor it is usefull inthat i can set 10psi for first gear and say 15 from second onwards.why because i have a heavy soarer and its auto .so whant to save off wheel spin and save the tranny.
i love it and wouldnt buy anything else.
btw excellant graphic Jag7799 great stuff
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you wouldnt get wheel spin on 15 psi in an auto soarer.. would be very little and make the car faster if anything
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I supported Toymods
Location:
Perth, WA
Registered:
May 2003
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Re: boost control and da 1j
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Sun, 12 December 2004 18:06
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yes u do
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Location:
sydney
Registered:
November 2004
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Re: boost control and da 1j
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Mon, 13 December 2004 11:08
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i wouldnt? yes i do ..from a standstill with no stalling if i mash it will loose traction when boost comes on and leave long marks after second..
if i stall it and go well it would just sit there useless..good for bags of smoke only..this is why its running std boost in first gear..
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Location:
sunny coast, qld
Registered:
October 2002
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Re: boost control and da 1j
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Mon, 13 December 2004 12:46
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i agree with muzzyttt. my mates jzz30 will wheelspin easily through first gear and then get traction in second. It has exhaust, FMIC and filter. runs 14psi with no boost controller. This is a single spinner like most auto jzz30's.
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Location:
Brisbane
Registered:
July 2002
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Re: boost control and da 1j
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Tue, 14 December 2004 01:22
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well im talking lsd equipped cars, not crippled single spinnner cars
what good is a person with 1 leg? NONE, same goes for cars(i apologise to anyone on the forum with one leg, you still have a use.. i swear)
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Location:
c'town, NSW
Registered:
May 2002
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Re: boost control and da 1j
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Tue, 14 December 2004 01:56
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jag is right guys, toyota from factory put special sensors in auto soarers to detect if it has LSD or not and doesnt allow it to wheel spin if it has LSD regardless of PSI.
jag has also one of these special sensors inserted into his arse to divert all of his feces to exit from his mouth.
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Location:
Brisbane
Registered:
July 2002
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Re: boost control and da 1j
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Tue, 14 December 2004 03:07
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| rob_RA40 wrote on Tue, 14 December 2004 12:56 |
jag is right guys, toyota from factory put special sensors in auto soarers to detect if it has LSD or not and doesnt allow it to wheel spin if it has LSD regardless of PSI.
jag has also one of these special sensors inserted into his arse to divert all of his feces to exit from his mouth.
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lol, dick
have you ever driven a 1jz'd 'heavy car' with lsd and auto?. i have(obviosuly not my car)
the fact is that the auto is a lot more tractable than the manual and also has higher gearing and tends to wheel spin less.. I know they will wheel spin on full throttle upshifts though
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Location:
c'town, NSW
Registered:
May 2002
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Re: boost control and da 1j
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Tue, 14 December 2004 03:19
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| Jag7799 wrote on Mon, 13 December 2004 00:20 |
you wouldnt get wheel spin
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| Jag7799 wrote on Tue, 14 December 2004 14:07 |
I know they will wheel spin
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why dont u just save some bandwidth next time and say:
"auto 1JZ soarers wont wheelspin but will wheelspin, cause i drove one and it wouldnt wheelspin but then it did wheelspin, cause i said it wouldnt wheelspin it didnt but then it did cause they can wheelspin but i said they can..................... and cant..."
thats a so much more helpful description, cause after all, we are trying to help people in this section and dont want to say anything false.
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Location:
Brisbane
Registered:
July 2002
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Re: boost control and da 1j
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Tue, 14 December 2004 03:23
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| rob_RA40 wrote on Tue, 14 December 2004 14:19 |
| Jag7799 wrote on Mon, 13 December 2004 00:20 |
you wouldnt get wheel spin
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| Jag7799 wrote on Tue, 14 December 2004 14:07 |
I know they will wheel spin
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why dont u just save some bandwidth next time and say:
"auto 1JZ soarers wont wheelspin but will wheelspin, cause i drove one and it wouldnt wheelspin but then it did wheelspin, cause i said it wouldnt wheelspin it didnt but then it did cause they can wheelspin but i said they can..................... and cant..."
thats a so much more helpful description, cause after all, we are trying to help people in this section and dont want to say anything false.
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the minor kick out and bit of wheel spin they get on WOT up changes hardly counts as real wheel spin
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Location:
Canberra
Registered:
August 2002
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Re: boost control and da 1j
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Tue, 14 December 2004 04:11
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if i stall my car up, she will smoke like no 2morrow, seems pointless and only breaks things. eg gearboxs and torque converters..
but from a stand still i can mash the go pedal as hard as i can on 15 psi and it wont break traction (in a straight line)except for a tiny chirp as it shifts to second and the bum gets a little nervous but nothing too exciting.
jza70 auto with lsd.
sorry for hijack 
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Location:
sunny coast, qld
Registered:
October 2002
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Re: boost control and da 1j
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Tue, 14 December 2004 04:41
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that isn't a hijack, that is real info. 
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