Does your APR car surge??

[Catfish]

A bit off track - but what's the difference between APR V1 and V2? What do you get with a standard ECU upgrade?

[shaneth]

There are a few threads on it mate. But i think the general point is its just when the power is delivered. ie. V2 earlier in the rev range aand V1 a little later on. There are back to back dyno runs and the difference i think was only a couple of kw. Im sure one of the apr guys will chime in.

[Kai]

i wanna know which is faster!

v1 or v2

[shaneth]

Kai how do you expect to find that out unless you do it yourself. And faster in what way a track or a drag. There would be so many variables that everyone will call BS on anything thats said. Its just like asking whats faster a golf or a polo. (not digging at anyone).

But hey your an SR man just put that in.

Having said that this is getting way off topic. so lets keep it to the surging issue.

[Kai]

Kai how do you expect to find that out unless you do it yourself. And faster in what way a track or a drag. There would be so many variables that everyone will call BS on anything thats said. Its just like asking whats faster a golf or a polo. (not digging at anyone).

But hey your an SR man just put that in.

Having said that this is getting way off topic. so lets keep it to the surging issue.

Yeah. You are right. Too many variables. dang.

[mozzzy_2000]

Yeah this surging is quite odd. I have been trying to get it to do it again to no avail. If it is the stock TIP collapsing I wonder why it happens in 3rd gear mid RPM and not when the car is screaming its guts out when you take it through the gears on a hard run?
I've been doing a bit of reading on on diverter valves and BOVs and from I can tell this surge seems to be more attributed to a poor diverter valve. The stock valve is so tiny it wouldn't supprise me if it can't handle the extra power from the chip tune. But without actually seeing the TIP perform under load its a bit of a guess I think.
It will be interesting to see if this surging gets any worse. Could very well be the TIP getting softer and softer the more use its getting along with the very hot temps here in Perth at the moment making it worse.

[Plautos]

Yeah this surging is quite odd. I have been trying to get it to do it again to no avail. If it is the stock TIP collapsing I wonder why it happens in 3rd gear mid RPM and not when the car is screaming its guts out when you take it through the gears on a hard run?
I've been doing a bit of reading on on diverter valves and BOVs and from I can tell this surge seems to be more attributed to a poor diverter valve. The stock valve is so tiny it wouldn't supprise me if it can't handle the extra power from the chip tune. But without actually seeing the TIP perform under load its a bit of a guess I think.
It will be interesting to see if this surging gets any worse. Could very well be the TIP getting softer and softer the more use its getting along with the very hot temps here in Perth at the moment making it worse.

I think the problem is not at the DV, it is probably at the WG actuator, or something related to the N75. Lots of dyno plots show the same “roller coaster” problem, all tests are supposed to be done in third gear.

[Petrina Polo]

Hi,

My car does it as well.. 3rd gear, comes on and off power, slightly but noticable.. damn.

Its not the diverter valve, my car has the APR unit fitted and it does it with APR unit and stock diverter valve

[Blitzen]

i have never had it happen with my V2 Tune, but I also have the Forge TIP, SEAT Intake, and K&N Filter done.

[DeanB]

I'm running APR and after reading this the other day took it for a run over the weekend trying to get mine to do this.

Unfortunately I can't get mine to replicate it. I'm running stock TIP, DV, etc. Only "mods" apart from the APR are SEAT intake and K&N filter. Anyways, I tried it in 2nd, 3rd and 4th ... I can't get mine to do it ... I'm happy about that, but in some ways dissapointed that I can't blame my TIP or DV for being crap and justify more spending

[DaveMack]

... I'm happy about that, but in some ways dissapointed that I can't blame my TIP or DV for being crap and justify more spending

Since when is justification needed? Just ... keep quiet about it ... or say: "That old thing ... had it for years." Or: "It IS a standard part ... it was just missing on delivery."

Dave

[DeanB]

Since when is justification needed? Just ... keep quiet about it ... or say: "That old thing ... had it for years." Or: "It IS a standard part ... it was just missing on delivery."

Dave

lol .... I wish I could however, the Mrs is getting wise to all the "little" changes to the car .... I make no comment about the endless clothes, shoes, etc she purchases .... but she likes to comment on "another expensive bit for your toy". Somehow her spending on clothing and me spending on car parts don't compare in her mind .... women !!

Although .... she won't pick a TIP ... need to get a black one

[DaveMack]

lol .... I wish I could however, the Mrs is getting wise to all the "little" changes to the car .... I make no comment about the endless clothes, shoes, etc she purchases .... but she likes to comment on "another expensive bit for your toy". Somehow her spending on clothing and me spending on car parts don't compare in her mind .... women !!

Although .... she won't pick a TIP ... need to get a black one

Yeah, Dean ... know what you mean ... "Double standards? What double standards ... oohhh that handbag would go so well with my new shoes."

Dave

[jueshen]

if you check ererything mechanical and find no issues, i suggest getting the clutch checked, one of my oil seals burst and slowly leaked oil into the clutch, those were my first signs of it going and i didnt even know

[hkogti]

Got some similar experience...

But it was in 1st only...

Seems boost pick up from 2000rpm to 2500rpm then no boost till 4500rpm..

But mine is not apr chipped...