Tomei Cams Making Car Rough?

[Manuel Kasko]

Can't help you there wouldn't have a clue about all that. Someone else can chip in now haha

[Old Booster]

First time I saw Victor Bray's 57 was just after Willowbank had opened, matte black and not a sponsors sticker to be seen, absolutely just as impressive back then as it is today.

[Mitcho_7]

Surely there is a few other places around your area that tune pfc's?

Jez is a great guy and im sure he could get your car on song no dramas, but 8 hrs one way is ages to drive for a tune.

[GTR260]

Justin simpson at horsepower soloutions capallaba! Been going to him for over 10 yrs! Hs his own business now!

[Dose Pipe Sutututu]

You'll be surprised that many "top notch" tuners will just use a pretuned map from another car and use it on yours, charge you the $1000 or so and give you 1x dyno sheet with some show pony numbers.

I've corrected a few tunes on a few of my mates cars and have seen total horse sht ignition maps that would go from 12 to 20 in the next row. Mind you, these are so called "hectic $$$$$$$$$$$ big name guys too"

Bring it to someone that will do the job properly, like Unigroup or DVS, they tune for passion not for the dollars.

Also touched up a tune on my friend's brother in law's ET Pulsar running a Motec (ancient pos, yuck!), he brought it to a shop on Stacey Street, Bankstown (now have closed wonder why!) to get his car tuned, he was running longer duration cams and decomped his head (god knows why) and they said it's not possible for the car to idle. They still charged him $500+ and he left with a ridiculous tune that would knock on boost, misfire and die at the lights.

[AngryRB]

I think the car is playing games with me lol..

after a 10min drive, the car was idling like a full on rotary, i guess it wouldnt hurt to go see horsepower solutions at capalaba then, fairly local,

but im getting a bit over all the $$$$ thats getting poured into this car..

It is getting to the point of the 8hr drive, i seem to recall the very first time i started the car with those cams it idles almost normal with just a slight miss, only things that have changed are the tune and the Z32 air flow..

i think ill have a look at the maps then to see if it looks odd. what would i be looking for anyway? what area on a power fc would you look at for this idle stuff?

Edited June 18, 2012 by SliverS2

[R31Nismoid]

Sounds like you have sensor/part issues, not tune issues.

[rob82]

Where the litters bled before cams were installed? They probably don't need to be if the base circles are identical but if there is a lobe with a slightly larger base circle then possibly you have a valve that isn't fully sealing. Have seen it before, as the valve heats up and becomes elongated the valve stops sealing only slightly enough to cause a slight misfire. Usually only noticeable when the engine is at low rpm when hot.

Also when an engine doesn't respond to changes in the tune then generally you should be looking elsewhere.....

Edited June 19, 2012 by rob82

[AngryRB]

I never knew anything about bleeding lifters, how would i check that?

I just spoke to Horsepower solutions at capalaba, he says it could be related to reversion in the intake pipe because the airflow meter is used by the power fc so thats what controls the idle? but he'd have to charge me a dyno fee to look at the tune, so $650

He also said id need 2 044Bosh pumps to run E85??? that sounds extreme to me..

[Bunta]

Dan (ERD) and Sean (EFI) are two different people who just happen to share a workshop, any Beef you have with ERD should not carry over to EFI. EFI has an osciliscope that should be able to work out what the issue is with your car pretty easily!

[Bunta]

On the topic of the intake pipe, horse power solutions could be onto somthing, what does the intake pipe look like? I think the ancient law goes you need at least 2 bends in the pipe to avoid reversion. Acts as a bit of a buffer so to speak

[Manuel Kasko]

Yeah does the BOV return enter at an angle or straight up and down.?

Also $650 to "look" at a tune is pretty BS.

Cant they just plug a consult in and give it a quick 10min run to see what happens

[75coupe]

2 x 044s to run E85?

sounds extreme to me, but maybe they are playing it extra safe?

[AngryRB]

yeah thats what i thought, if you know what your doing shouldnt it be fairly obvious?

heres a pic

[AngryRB]

2 x 044s to run E85?

sounds extreme to me, but maybe they are playing it extra safe?

If i need 2 external pumps to run E85 then i wont be going down that route, will be doing water/meth instead.

[scotty nm35]

One 416lph Walbro will flow more than enough, so would a Nismo/Tomei pump. What does the 044 flow on ethanol though?

[34GeeTeeTee]

One 416lph Walbro will flow more than enough, so would a Nismo/Tomei pump. What does the 044 flow on ethanol though?

Should flow more than enough how much power is the OP aiming for?

[75coupe]

Bosch websites states 040 flows only 102lph @6.5 bar & 044 flows 200lph @ 5 bar

damn and hear I thought the 040 was a good upgrade for me... suck I'll have to replace it if I want to go E85 by the sounds of it...

[AngryRB]

Should flow more than enough how much power is the OP aiming for?

i think 300kw is enough, just want to improve the low and mid range.

[34GeeTeeTee]

Should be fine... Ill be running over that with a single 044... Well will have a result by the end of the week anyway so ill let you know how it goes...