Jump to content
SAU Community

Recommended Posts

This may have been covered before but i need some clarification,

I have tomei cams 256 8.5lift, car has been tuned and ive been assured by tuner that the mixtures are fine and he showed me that that changing the mixture made no difference. Im ruling out vacum leaks cause it seems to behave under throttle, but at light throttle it wants to jerk and under 2000rpm it will be jerky if you dont put the hammer down.

is this just normal with these cams or are my injectors dripping?

With these cams will i foul up my plugs if im doing alot of slow off boost/idling style driving?

I noticed after a squirted it in second and came on full boost, then pulled up at drive way it was behaving itself , and just 5mins before it was stalling on me....

any thoughts?

Link to comment
https://www.sau.com.au/forums/topic/402821-tomei-cams-making-car-rough/
Share on other sites

  • Replies 102
  • Created
  • Last Reply

Top Posters In This Topic

that doesn't sound right

longer duration cams will need a tad higher idle & not stoich at idle (maybe stoich is possible if RPM high enough).

Sounds like he hasn't set the throttle enrichment properly, time to find a new tuner.

Im getting tired of going thru tuners :verymad:

tonight it was going weird too, started hunting like the power fc was reset or somthing, then came good, also noticed a massive cloud of smoke after a squirt in second, was enough to fill the street up, thats the second time ive noticed this...

Take the drive down the coast to DVS JEZ

Get him to tune your car

Win win

I tell ya im getting so annoyed with tuners and not getting the results $$$ has been spend here...

Maybe when i go E85 ill just take the drive and give him a go, cant do any worse surely.. :whistling:

I tell ya im getting so annoyed with tuners and not getting the results $$$ has been spend here...

Maybe when i go E85 ill just take the drive and give him a go, cant do any worse surely.. :whistling:

Can pretty much guarantee you'd end up happy if DVS JEZ tuned it, take a look at all the results from his tunes. I'd get him to tune my Z32 when its done, but i'm doing the unigroup tuning course and want to do it myself :P

gees thats like a 8hr drive, hope i get some kind of discount, and that it doesnt some how blow up on the dyno, cause dam thats a long long way to get home, :whistling:

id end up just torching the car like on Monster Garage, jess james style hahaha :yes:

Edited by SliverS2

Well we already established earlier you probably need to visit a better tuner...

Why don't you go to EFI, they are in QLD and have been doing good work

well at the risk of getting flamed, i did originally go to ERD for my dump and it ended up with a 4week wait, and not his fault he was very busy and i got impatient and decided to pick it up, anyway, the dump was rubbing on the body so it wasnt right, and no hanger to support it and i got the shits with the whole thing, now EFI is part of that workshop so should i really take it back there... ???? i dont know..

seems like a bad experience to me.

Who's your tuner? PM me if you do not wish to name him publicly.

I really dont know if this is my tuners fault, hes tuned many many high horsepower cars, one GTR on ignition DVD which put out 850HP and without proof i dont want to give him a bad name.. i think hes a good bloke, a tuner can only do what they can with what there given.

so is it the consensus that its the tuner??? im starting to think that the whole laggy turbo response could even be these cams, what do more extreme cams do? is it possible that i was mistakenly given more extreme cams that are causing massive duration??

my cas is brand new so maybe that just highlights the tune again, :wacko: every time i pull up at some traffic lights people thing im ready for a drag lol... pretty funny. its similar to victa bray's burn out chevvy haha rah rah rah rah cant complain when the hammer is down though, in second gear on a bar, the back end was wanting to turn 180 degrees, bit scary.

maybe i should just use it like a burn out car and forget street driving :domokun:

Edited by SliverS2

A second tuners opinion would be a good idea I think, regardless of how nice of a person the original tuner is. Different approach to tuning it might yield better results or might not, but you won't know until you take it elsewhere.

thats a good point, maybe they can just do a quick run and look at the maps , its hard to know who to trust with tuning, they all spin there stories, im thinking DVS is the go, seems to have alot of credit on these forums.

better be worth it or ill be bordering psycho lol... bring out a shot gun or somthing hahaha.

now ... lets tune this huh??? and do it right huh?? ill sit here with my bourbon and you tune that dam car haha

joking.. but seriously.. can only go thru so much $$$ with tuners or else ill just go for a SS Ute and forget it..

Edited by SliverS2

might consider seeing if EFI can give it a couple of runs and tell me if its a crap tune or not, shouldn't cost too much hopefully..

im getting the feeling and by the smell on idle and the big puff of smoke on WOT that maybe its a little too safe and too rich, the throttle is very jumpy too, could this even be related to ignition timing too advanced for cruising???

resembles a car with 10:1 compression or somting..your either engine braking or your taking off ...

Edited by SliverS2

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
    • Yeah mate, never miss it.
    • Any going to watch World Time Attack at SMSP this year?
    • Appreciate the correction on the "ground", that will make a huge difference to looking at this. That makes complete sense about AF70/AF71 which is what I had come down to being the issue, one of these. I'll have another look in the ignition wiring when I get a chance next week. I'll also make up a jumper wire for running that AF73 test.  ECU is fine, relay itself is fine, pump harness is fine and the pump itself is fine. I am going to upgrade the Walbro 255 anyway with a DW300 I have since I need to replace the fuel sender and I'm going to upgrade the FPR with my chasebays kit ready for new plenum/injectors/dbw, but I'll get this working first. That's why this is so frustrating. 
×
×
  • Create New...