Hi,

I just built my motor using the standard arias 9's and recommended arps and all that...

my tuner said he was a wiz kid at the unichip and would have no issues getting me into good whp territory without forking out the cash 4 a haltech.... my mistake, i believed the little f*er...

so what happens one might ask??? since the unichip is not driving the injectors the standard ems is, so when u start pushing boost through the config the standard ems says, i dont like this, it switches to a map with more agressive timing and boom boom let me here u in the room hoolla this biatch went boom...

so now he is taking responsibility 4 his great build and tune ... not. he is contributing in manual labour but is charging me for replacement parts... so the plan forward is:

- darton sleeves - 100mm bore
- cp pistons 9.2 compression - 99.5mm
- new crank - old ones bent like a banana
- possibly do something to my metal gasket heads to modify or else if anyone has an off the shelf for a 100mm bore it will be great

- bought the haltech.... fanks! waiting 4 that traction control guys??

and thats that... so if anyone can see any thing that could possibly go wrong please let me know as this is expensive and my tuner is a shadey monkey ***... i have to assume the responsibility as well but the guy said if I take it somewhere else to get it tuned with an fcon he would not honor the engine build... ***...#$%%$##@@

anyone have any ideas what kind of power we looking at with a standard tt aps with ewg's and 3 test pipes to the end.?? on a 3.84 lt engine...

our aps tt starts running out at about 533 whp on 100 fuel so am not sure how these guys are cracking huge numbers beyond that ... yea yea dyno's differ but its not fair to the consumer putting an expectation that is off about 40 - 80 whp... anyway thats my 2cents and cheers 4 any advice


ddd det det det changed ma life...

 

That is terrible to hear! Even considering free labor I think I would take my business elsewhere. I believe we have everything you need including crank, sleeves, 100mm headgaskets, L19 headstuds, 100mm cp pistons etc. Contact me if you would like the whole package assembled and ready to go so you don't have to deal with him again. And now that you have the haltech, take it to a real tuner!

 

That sucks! Your tuner is definitly to blame not the unichip. There are plenty of unichip tuners on this site that would have tuned your car without blowing up a built motor. The Haltech seems to be a nice standalone you will have more tunning capabilities now.

 

Thank you Mr Hal and co, the problem with me going elsewhere now is that I will need to pay for the labour of putting it all together, he has already ordered the 99.5 cp's with a 9.2 compression, also the parts i am paying for are at dealership prices, once the build is done I will def take it somewhere else for a tune... i am also a bit silly for going along with it all... just upset at the manipulation and lack of total responsibility from a cost perspective...

the crank is a direct standard replacement, he got the haltech for me from u. do u think the 3.84 lt engine will be a bit better in performance etc... dont know if the turbos will spool faster, the compression is up .2 so hope a few extra whp there but am limited to those tiny aps tt's...

cheers
DDD

 

While max HP will still be limited by the APS twins, your spool and torque should be better. A 3.84 is nearly 10% larger than the stock 3.5L.

What blew up on the old one?

Good luck and let me know if you need anything.

 

1 piston shattered, the others are just broken here and there, the cylinders are all scored and the crank bent. thank u for the offers, i shall be giving u a call should i need anything, let me know where i can get software downloads for the haltech if have the time.

cheers
ddd

 

Wow, that is pretty rough! PM sent

 

Its terrible that the tuner isnt offering a complete free replacement. Glad that they recognized that it was their fault, free labor is good but they should have replaced the motor for you.

but the new steup will be beast. Once its done, take it else where to be tuned, he obvious isnt the greatest tuner since he destroyed your engine. He just might try to tune the new motor again and do the same thing! who pays for that motor then?!

 

This seems like an amateur mistake... I wouldn't blame the unichip. And don't let this guy talk you into anything else. Are you sure he can build a motor?

 

Hi guys the main problem on dooms car was the in ability to set a constant timing as the unichip is merely a piggy back.

The car was dyno tuned with solid afr (controlled by a Dictatotor piggy back as the unichip could not scale the 750cc injectors.timing was managed by the unichip.

on the road it used to pick up det as the ecu was possibly changing maps. the car was not tuned on race fuel to ensure that the stock ecu was on its most agressive map.we do not have the best fuel in our country.

I do think that the tuner should have done more though to help remedy the situation. he has done my motor and "tuned" my Haltec ,I have to admit that I am not 100% happy as no changes we made to intake timing and tends to surge on very light throttle.

I am sure that now that a proper mangement is being used it will be alot better. Dooms I also noticed that RBTS is an accredited Haltec tuner?? so maybe we can have them look at the final tune.

hang in there bud once its done you will have a beast.

 

Bottom line is the tuner doesn't know what he's doing with a Z. There are many here in the US running the stock unichip from a aps tt kit. It's not the best piggy back and has its limit. If he was a qualified dealer he would have known that.

 

sux to hear... i pushed my unichip to da max at 501hp and does an OK job... but definitely need FCON or equivalent stand alone for higher HP. i'm running 650cc with apstt. sounds like the fault is with the tuner, not necessarily the chip.