Supercharged/TurbochargedThe increase in air/fuel pressure above atmospheric pressure in the intake system caused by the action of a supercharger or turbocharger attached to an engine.
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I'm running an average of 8 lbs now with a similar setup on my daily driver:
370cc
Stock maf
Emanage Blue with all harnesses and map sensor
Walbro 255lph
Don't forget the one step colder plugs though.
Where did you hear this? There are many cars running more than 10 psi on stock internals. its all dependant on turbo anyways.
Those injectors are overboard for anything less than 350 whp and i doubt he will hit those numbers with 8 psi on anything smaller than a gt35r.
10 psi on stock internals is pushing it. Its a little over kill but your running a risk even with running 8-9 Psi on a 35R with these cars, unless your engine is fully built it wouldn't matter what you throw at it.
Read the turbo stickies and you"ll see what I am talking about. I am not saying your totally wrong but if you read the beginning of the Turbo FAQ they say that its just safer to run 8-9 PSI with 450-650CC injectors. Your compression maybe slightly slower as well.
I'm running an average of 8 lbs now with a similar setup on my daily driver:
370cc
Stock maf
Emanage Blue with all harnesses and map sensor
Walbro 255lph
Don't forget the one step colder plugs though.
Psi means nothing. I have ran 25psi on a stock block with a Turbonetics 60-1. What you need to find out is what the cfm rating of that turbo you are going to run is at the boost pressure. I find it funny when i hear people saying our cars can only handle 8psi. People you have to remember that PSI MEANS nothing. You want to know the flow rate of the turbo. With that said. wat turbo man?
Feel free to call me bro i can still help ya out lol.
__________________
97 SE Auto Built Auto
97 SE Holset HX52|N2O|6 SP|Built 3.56|More to come
91 GXE Auto bone stock beater
91 GXE 5sp Another beater
Led retro's Pm me
Apexi Neo for Tuning. I know many people that have gone beyond 10 psi. T4 Holset Back Split Exhaust Housing . 84/a/r/ garret compressor .70 a/r
Quote:
Originally Posted by t6378tp
at 5lbs you will not need a fmu
What about for 8 pounds?
Quote:
Originally Posted by kzoosho
Psi means nothing. I have ran 25psi on a stock block with a Turbonetics 60-1. What you need to find out is what the cfm rating of that turbo you are going to run is at the boost pressure. I find it funny when i hear people saying our cars can only handle 8psi. People you have to remember that PSI MEANS nothing. You want to know the flow rate of the turbo. With that said. wat turbo man?
Feel free to call me bro i can still help ya out lol.
8 lbs is not much for a vq30. There are people that run that daily and more with no problems, as long as your tune is good you are ok. The vq30 is very forgiving, trust me, I've been running 8lbs untuned/non dyno tuned (only guess tuned by me) for about a year now. As long as you have the equipment to monitor what's going on, namely wideband. I'm partial to the stuff I have because I log afr, psi, rpms and egts and can pull timing. There are quite a few turbo max owners that tune the car themselves, just educate your self, search, and read especially I30TMikeD threads.
8 lbs is not much for a vq30. There are people that run that daily and more with no problems, as long as your tune is good you are ok. The vq30 is very forgiving, trust me, I've been running 8lbs untuned/non dyno tuned (only guess tuned by me) for about a year now. As long as you have the equipment to monitor what's going on, namely wideband. I'm partial to the stuff I have because I log afr, psi, rpms and egts and can pull timing. There are quite a few turbo max owners that tune the car themselves, just educate your self, search, and read especially I30TMikeD threads.
well said i havent heard to many horror stories of with a 3.0 blowing up on 8 lbs.
Because you though i got the zeinetronix full kit. egt, boost, connections as well.
a great source told me i shoulddddddd be alright with an 8:1 and the 370's. Im planning on getting bigger injectors just now now.
Well seeing that you have a gt40 i would deff do what i said, 370's and the fmu to be safe. U will want to get a good wideband also to monitor your a/f . I would get one that logs.
__________________
97 SE Auto Built Auto
97 SE Holset HX52|N2O|6 SP|Built 3.56|More to come
91 GXE Auto bone stock beater
91 GXE 5sp Another beater
Led retro's Pm me
8psi is rather low to be maxing out 370cc's, I was at 15psi on my turbo(t04b) and injectors were still not maxed out with 1:1 fpr.
My turbo like kzoosho said below is pretty large. gt40 we believe. so im guessing 15 psi on mine would should definetly max them out. im check the flow map on a t04b compared to a gt40.
Quote:
Originally Posted by kzoosho
Well seeing that you have a gt40 i would deff do what i said, 370's and the fmu to be safe. U will want to get a good wideband also to monitor your a/f . I would get one that logs.
i got that zeinetronix joint that maxgtr2000 has i think it does datalog.
Quote:
Originally Posted by t6378tp
but how much hp were you pushing, remember it's not the amount of psi that max's out the injectors it's the power
you can push 40psi but if your only making 300hp then 370's are fine
Your very right same thing kzoosho said. jeeve broke 300 wheel hp on his gt40 with 8 psi i think
10 psi on stock internals is pushing it. Its a little over kill but your running a risk even with running 8-9 Psi on a 35R with these cars, unless your engine is fully built it wouldn't matter what you throw at it.
Read the turbo stickies and you"ll see what I am talking about. I am not saying your totally wrong but if you read the beginning of the Turbo FAQ they say that its just safer to run 8-9 PSI with 450-650CC injectors. Your compression maybe slightly slower as well.
Are you even boosted?
450cc-600cc for 9psi? Serious overkill, of course its safer being able todeliver so much fuel but its not needed at all.
10psi isnt pushing it if the car is tuned well and has adequate fuel.
Maybe on a motor that has over 200k, then yeah I would think so.
Most of us boosted guys are running stock internals, theres only a small handfull that have built motors.
__________________ Chumps try to imitate but can never duplicate
377hp 338tq
Are you even boosted?
450cc-600cc for 9psi? Serious overkill, of course its safer being able todeliver so much fuel but its not needed at all.
10psi isnt pushing it if the car is tuned well and has adequate fuel.
Maybe on a motor that has over 200k, then yeah I would think so.
Most of us boosted guys are running stock internals, theres only a small handfull that have built motors.
what would you recommend using 370CC.
And when you say built motor are you talking just pistons and connecting rods with a bored out block with sleeves?
And when you say built motor are you talking just pistons and connecting rods with a bored out block with sleeves?
If he intends on staying at 8-9psi, stock inj. would work. Of course 370's would be a safe margin. Built meaning upgraded pistions and connecting rods and valvetrain. Boring out the block isnt a have to in order to upgrade the pistons.
__________________ Chumps try to imitate but can never duplicate
377hp 338tq
If he intends on staying at 8-9psi, stock inj. would work. Of course 370's would be a safe margin. Built meaning upgraded pistions and connecting rods and valvetrain. Boring out the block isnt a have to in order to upgrade the pistons.
Come on man, not another spoon feed you post. Search please. My next post to you wont be so nice.
__________________
97 SE Auto Built Auto
97 SE Holset HX52|N2O|6 SP|Built 3.56|More to come
91 GXE Auto bone stock beater
91 GXE 5sp Another beater
Led retro's Pm me
If he intends on staying at 8-9psi, stock inj. would work. Of course 370's would be a safe margin. Built meaning upgraded pistions and connecting rods and valvetrain. Boring out the block isnt a have to in order to upgrade the pistons.
I've been running 11psi for more than two years on my daily driver with stock injectors. The engine has been boosted for 5 years and 80,000 kms (54,000 mi) without tragedy. My tune is often bad, and my peak FP is 100psi. I destroy clutches, not connecting rods. The stock engine internals and injectors are plenty good for 8-9 psi.
What seems to kill these cars is not the boost.... it's the crashing.
I can't find a vband flange and clamp.
I bought a 4" with 2 flanges and clamp- No Good
I bought a 3.5" with 2 flanges and clamp- No Good
I'm ordering a 3" with 2 flanges and clamp- Maybe
Do any of you guys have with vband downpipes remember what sizes or how you measured to get the right size?
Update: With Pics To Follow In A Few Days
Currently Have:
Check List
t4 garret compressor .70a/r exhaust side .84/holset divided
370cc 300zx injectors
300zx maf
walbro hp fuel pump
begi fmu
ebay afpr
apexi neo
mevi
300zx bbk
triple gauge pod : boost, fuel pressure, oil pressure
zeinotrix wideband with boost, and egt,afr, and lamba display hookups
hks ssqv bov
tial 38mm wastegate
mishimoto aluminum radiator
mishimito intercooler 27x6x2.5
Remaining items:
mishimoto oil cooler
intake spacers nwp
intercooler piping
exhaust piping (dont know if i want a full 3" exhaust from downpipe back. Or a 3" downpipe to 3" cutout replacing the cat then a reducer to a greddy sp2 or an apexi ws2") what do you guys think?
Help:
I need info on oil feed and return lines? I know the sizes already
But where can i find the best equipment?
I need to know what should i buy to run the afpr and the begi fmu in terms of lines and vacuum hoses?
Also feel free to tell me what im missing and also to critique my setup.
In case anyone is wondering im replicating the pfi setup as close as possible seeing as it is the setup i have the most experience with.
What will you be using for a turbo manifold? Check out page 5 of my cardomain. I just finished turboing my max. I'll be firing up the motor for the first time tomorrow morning after i get some fluids back in the motor. I have 370 injectors, Z32 MAF, Jim Wolf ECU, Walbro 255 fuel pump, an ebay generic T3/T4 turbo, and a home made manifold.
What will you be using for a turbo manifold? Check out page 5 of my cardomain. I just finished turboing my max. I'll be firing up the motor for the first time tomorrow morning after i get some fluids back in the motor. I have 370 injectors, Z32 MAF, Jim Wolf ECU, Walbro 255 fuel pump, an ebay generic T3/T4 turbo, and a home made manifold.
Congrats bro. From reading threads and talking to a few buddes. Depending on the size of that turbo and its flow rate. keep boost at a decent psi and with what you have you should be ok. If you welded up everything bravo. You are pretty good. Let me know how everything turns out.
Is the jim wolf modified for a turbo setup with walrbo, 370 injectors and a z32 maf?
Generic Ebay turbo will hold up for a bit but have heard a few bad stories about them over the long haul.
I pretty sure he was closer to the 350 range. Depending on how efficient your piping is I think you'll be around 400hp at 14-15psi.
Yea jeeve broke i think 365 hp on 7 or 8 lbs... He's running like 10 or 11 now i beleive so he should be breaking 400 at the wheels easily.. I will tell him to chime in on this thread
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Last edited by wirelessdude04; 07-05-2009 at 02:25 PM.
Congrats bro. From reading threads and talking to a few buddes. Depending on the size of that turbo and its flow rate. keep boost at a decent psi and with what you have you should be ok. If you welded up everything bravo. You are pretty good. Let me know how everything turns out.
Is the jim wolf modified for a turbo setup with walrbo, 370 injectors and a z32 maf?
Generic Ebay turbo will hold up for a bit but have heard a few bad stories about them over the long haul.
Yeah, the JW ECU is so easy. It was tuned for the 370s and the z32. You just plug it in and your tuned. I drove the car all day today at 10psi. The raw acceleration and sound of the turbo are indescribable. The car runs perfect. It revs to 7200 RPM with the new ECU and Idles like stock. What a sleeper! I can hardly wait to go race some unsuspecting corvettes.
I did make the manifold myself. Pics are on page 5 of my cardomain.
Thanks BkGreen97 for letting me get some posts in on your thread. I'm a newbie so Im trying hard to earn my 15 posts.
I saw your pics on cardomain and it looks like your doing a good job with the fab work. can't wait to see the end result. I might build a few more manifoldes just to sell. Not sure if its worth the trouble though.
blew out front coilovers. dont have a back up set so i sent them out and had to buy some other suspension so progress was halted again.
Looks like the car pulling hard bro.
Sorry to hear about your coil overs. Mine has been doing great. Had to swap my kevlar disc clutch out for a ceramic 6 puck though. It was not strong enough. You should consider doing the same if you haven't already.
Tryed 3" vband clamp and it did not work. Tooooo small. I cannot get in touch with the previous owner...but i found this old picture that he sent to me...
Finding this picture lets me know what i have to do... stay tuned for progress updates...
Decided to go with forward y pipe, for ground clearence, hopefully quicker spool, and less piping.. All piping will be sanded down, high temp painted, and wrapped..
We reinforced the motor mount as you can see, at the top, bottom, and both sides.. Downpipe will be finished today hopefully. Still having trouble with the flange, need to make a custom one but its kicking my ***...
Sorry for the extra large pics but hopefully, someone cause use these as a reference one day...
We reinforced the motor mount as you can see, at the top, bottom, and both sides.. Downpipe will be finished today hopefully. Still having trouble with the flange, need to make a custom one but its kicking my ***...
The pipe is in two pieces for easier removal. We added somewhat of a vband flange right after the bend in front of the motor mount.
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