Jump to content
View in the app

A better way to browse. Learn more.

300ZX Owners Club

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

just got my car back from thor racing who fitted and mapped greddy emanage and prefec e01 boost con, heres the results:

 

all ive done so far is super drager exhaust, apexi intake, turbo xs dump valves, and now the emanage and profec e01, running as 17psi, althou i think il mainly run it at 14psi and ive used the overtake boost button to run at 17psi, which ive set to toggle rather than on a time limit!

 

just wondering how other ppls results compare with similar mods, i was quite impressed with the gains!

 

oh and both results are at the wheels, he just forgot to cross out 'fly' on the left graph!

 

the blue line is at 14psi, red is at 17 and yellow at standard 9

 

 

photo.php?pid=864629&id=500822412

  • Replies 81
  • Views 2.8k
  • Created
  • Last Reply

Top Posters In This Topic

Featured Replies

you always say that but im running 21.9psi at the mo and soon to get more back. THIS IS ON STOCK TUBOS FACT!!!!!

 

Yes we all know you are, your very lucky. So keep pushing bro :D :mac1:

Yes we all know you are, your very lucky. So keep pushing bro :D :mac1:

 

Ive got it booked in for wednesdey to disconnect the boost controller. im hoping i will get the power back and if it dont then i must have a dodgy controller.:rofl:

lee-man, to safely push over 15psi you will need larger injectors, uprated turbos of some kind, uprated intercoolers, and an ecu remap (although as far as i know, the e-manage will handle that for you, though the Profec definately won't) - an aftermarket radiator will be a very good idea, and a reliable boost and water temp. gauge are also a must.

getting boost up to 14/15psi is relatively cheap, but to push past that boundary safely costs a couple of £k's :( good luck.

  • Author

so maybe 17psi is ok on a cold day lol

it was hot the day i got it and i was on off flooring it from birm to london lol

engine was hot when i got it home, but it always has got pretty warm lol

 

how come u say the profec e01 wont handle the extra mods u mentioned? its a pretty decent boost con init? surely it will take what ever, yeah at thor they had a 600bhp zx using emanage and profec e01!!

and with the emanage bit what ever mods i do in future i can get that remapped init, should surely never need another chip!!

 

 

 

hey mainiac, have u uprated injectors or anything else to be running 21psi?

  • Author

and the profec has its own boost guage, surely considering the price of this unit it should be pretty acurate, dude at thor said it was pretty accurarte, maybe very slightly high!

he set it to 17psi and highest reading ive had is 17.5psi which would seem right!

  • Author

noones mentioned bigger fuel pump either!!!

would a bigger fuel pump not be a wise move if i needed more fuel?

sorry mate what i meant was the boost controller will not handle fuelling for you - thats the job of the ecu (or as in your case, the e-manage) though i agree that the Profec E01 is one of the best you can get (i got one too :) ) 17psi wont be ok even on a cold day as your injectors will not be providing enough fuel and it will run lean. seriously mate turn it down a tad before you decide where to go next. if you can afford to get your engine rebuilt and need an excuse to uprate the internals then by all means have a play and wait for it to go pop.

 

and no disrespect to mainiac, but somethings not quite right in his case - there's a whole thread about it! :D

 

EDIT: no need for a bigger fuel pump unless youre going for something like 850cc or above

so what do u think i should get next to run 17psi safely?

intercoolers, turbos and injectors?

lol

cheers

 

Upgrade your coolers as soon as you can afford bud and should deffo be the 1st next mod you do. Reducing in the intake charge temps down is very important.

If after a while the car is still running as healthy as you would like, change the injectors for nismo 555's and use the e-manage to control them.

Then as and when the turbo's finally give up or you've come into a couple spare grand, you can change the turbo's for pretty much any 5 bolt design and you'll be able to run the higher boost and have some decent power.

smithy

Upgrade your coolers as soon as you can afford bud and should deffo be the 1st next mod you do. Reducing in the intake charge temps down is very important.

If after a while the car is still running as healthy as you would like, change the injectors for nismo 555's and use the e-manage to control them.

Then as and when the turbo's finally give up or you've come into a couple spare grand, you can change the turbo's for pretty much any 5 bolt design and you'll be able to run the higher boost and have some decent power.

smithy

 

also with some fresh rings and rods of course :D

 

You could run 14psi with uprated intercoolers all day with confidence

 

maniac your a maniac.... thats all for now.

I dissacree,if an engine is set up correctly then it should be ok. It will always be the weakest link that goes eg,con rods. Of course the engine will wear quicker as your putting more load through it but how often do you drive at full throttle,not very.

Better cooling is required,intercoolers,engine oil,gearbox oil but not everyone remembers all this and then you get proplems.

Thats my experience from uprating cars,knowing the limits and not going beyond them.

http://www.injector.com/faq.php#faq5

 

http://www.rceng.com/technical.aspx

 

I would personally ditch the emanage and get a chip if you are going to run bigger injectors, they are only £50.

 

You seem determined to want to run 17psi, and everyone on here is telling you otherwise, either your turbos or engine will go FACT.

 

Lastly you seem to have spent a lot of money on your car and also got invaluable advice from the members, so dig deep and fork out anouter twenty quid on membership :D

I dissacree,if an engine is set up correctly then it should be ok. It will always be the weakest link that goes eg,con rods. Of course the engine will wear quicker as your putting more load through it but how often do you drive at full throttle,not very.

Better cooling is required,intercoolers,engine oil,gearbox oil but not everyone remembers all this and then you get proplems.

Thats my experience from uprating cars,knowing the limits and not going beyond them.

 

yeah your right Conrods will buckle they wont just wear and they are good for 450 bhp, the rings will slowly wear or crack and i wouldnt push more than 390 with stock pistons. if i was to run around that again on stock :S it would be set up properly ie cooling and fueling.

 

So in terms of an engine just blowing up then yes rods bending rings snapping pistons cracking engine popping just like a rice crispy :D

  • Author

ditch the emange for a cheap ass chip????

i dont think il be doing that lol

whats the advantage of a chip over emanage? from what i understand the emanage is a fully remapable unit, i mean u can adjust everything on it!

and it has injector duty sensors!

which i will check when i get a sec to see if its connected lol

and the profec is good for 30kg/cm2 of boost which is loads so the package should be fine and not need to be replace by a 50 dollar chip lol

 

yeah i do want to run at 17 cos i get more power lol

i am trying to be convinced lol, i certainly will be mostly running at 14, but my overtake button is still set to 17 lol

i looked on other forums and from previous posts they all say 15 to 18 psi is ok lol

i mean wouldnt the thor dude have checked my injector duty and made sure it was ok and checked it was det'ing? or likely to blow?

i mean thor do some pretty big tunes init!!

 

dont get me wrong i do value all ur opinions, but yes i am wanting an excuse or reason to believe 17 is ok lol

 

i only use the car once a week or so lol

do bout 4-6k miles a year max

 

as for money for intercooler, hmmm under 500 lol

closer to 200 if i can hahah

but obviously i dont want anything shit

 

what else do i get for becomming a member? do i get a badge and a sticker?

maybe some free intercoolers?

noones mentioned bigger fuel pump either!!!

would a bigger fuel pump not be a wise move if i needed more fuel?

 

no, your fine on stock fuel pump. Its 255lph, once your into the 500-600hp region you need to look into a twin pump setup.

The recognized safe limit is around 14psi on all z32 forums, across the world. Your injectors can just stretch to 17psi (they will be leaning out, but as THor mapped it at that level your probably ok), your turbo's are still efficient at 17psi...but your injectors lifespan is severaly shorterned as are the turbos and the risk of detonation is very very high. I know quite a few who use 17psi as a Overake boost setting but its not a boost level you want to use regularly. On a hot day you will get detonation. Your basically running everything just above their limits and that is a big risk. Do you know what Base timing they set your car at ?

 

As for Bianic, 21psi+ is not simply possible on a stock setup. Your injectors can not supply enough fuel and your mixture will lean out, the intercoolers cant cool the air sufficienly and the turbos get too hot to make increased power- the car will severly detonate and either put a hole through your piston or crack the ringlands...and this would all happen in a matter of minutes...if not seconds..and has happened many times before. Either you haven't got eveything stock, or your boost gauge is lieing. If by some miracle your car has still surviced, then I bet if you turn the boost down to around 17psi you'll find its actually quicker than at 21psi.

  • Author

http://www.tamparacing.com/forums/nissan-infiniti-tech/206844-max-psi-stock-300zx-tt.html

 

this was the link i read bout higher boost on stock! could be they dunno what they on about, think theyre american lol

 

bloody injectors, why dont we get bigger ones as standard lol im sure the supra ones are bigger arent they!

 

well maybe il use it for overtaking/quick racing on cold days lol

nah not a clue, can i find out? profec should say somewhere shouldnt it? i read sommin bout timing on that!!

 

cheers

  • Author

damn them injectors are enough money, 130 each on one site, plus vat i think!!!

Gees, just how many times can someone say "lol in a friggin post!

Anyway, it's pointed out quite clearly now your at that danger zone as regards your engine. Am more than sure Thor have mapped it well and at the time they looked at all areas and all seems fine, that said i base that on short term, long term you are looking at a different story, so definately sort some coolers out soon, skimp on some cheapos and you'll pay the price, some things you just can't skimp on when tuning an engine that can cost thousands of pounds when it breaks, so bare that in mind cos many havn't listened and they have paid dearly!

Use your 17psi carefully, however for peace of mind i would turn it down to 15psi.

£540 is the average cost of a set on new Nismo injectors and they would further help safegaurd your engine, should you decide to up the boost again.

smithy

  • Author

yeah i do have a habit of saying lol alot lol

see!

 

any place u recommend getting them from?

and what bout intercoolers? side or front mount, sides gotta be easier init? ive had a look for intercoolers and they all look the same :S any recommendations on them?

 

cheers

  • Author

how comes the 740cc injectors are cheaper?

surely might as well go for them init?

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

Recently Browsing 0

  • No registered users viewing this page.

Important Information

Terms of Use

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.