CommodoresPlus

I have just spent the last 2 nights reading through your build and all I can say is wow CAV!!!!!

My hat comes off to you.

So I am about to set off on a similar journey however not as hard core!!!

I have a few questions for you all

My Plans: VS LSA & T56 Combo.

How big of a KFrame space will be required to reframe from utilising the group a…[Read more]

do you have any details?

My 2 cents.

1. If ur tuner could only get 5hp when tuning compared to come single throttle tune sack him and find a real tuner

2. Biggest issue with grp a intake is air box. Install lp intake and u will gain 20 – 30 Hp…

How could it have lost power and then only gained 5 Hp????

Hi pete,

i was was talking more around Ecu…. Your above comments are also very viable…

hope he gets it sorted and enjoys it.

for the record my GTS had a single throttle tune in mine and I was lucky as was lean as fuck…

Isn’t that what I said few posts ago???

Disconnect secondary throttle link and u will get power increase and that will prove theory.

Get kalmaker tune done….

Power: 358 RWHP amd 698 nm Dyno sheets to prove

http://forum.streetcommodores.com.au/showthread.php?t=8469258

remember its 383 which makes a massive difference…

24 deg sounds OK.

take the cover off the memcal and message me eprom number. No way making that sort of power with std come chip…..

I would look at the following.

* Leak down test

* Dizzy

* remove rocker covers and inspect

* TPS

* remove second throttle linkage.

I know this may sound like a smart ass but did you fry clutch and that’s why you cant spin tyres….

Don’t do a comp test do a drop down test as this will check top and bottom of each cylinder.

How do you know power has dropped?

HI MAte,

ONLY LSx ECU can adjust speedo….

VN- VP Direct feed

VR  + Pass thru unless its LSx

I am tipping new diff has 3.9 as that would make it 30% out.

Jaycar box is the way to go put it on the Purple / white wire on dash side of plug.

Also to get OBD2 plug going ensure black/ red (Diag Port DATA    ECU = A8)  and white /  black ( Diagno…[Read more]

HI MAte,

ONLY LSx ECU can adjust speedo….

VN- VP Direct feed

VR  + Pass thru unless its LSx

I am tipping new diff has 3.9 as that would make it 30% out.

Jaycar box is the way to go put it on the Purple / white wire on dash side of plug.

Also to get OBD2 plug going ensure black/ red (Diag Port DATA    ECU = A8)  and white /  black ( Diagno…[Read more]

HI MAte,

ONLY LSx ECU can adjust speedo….

VN- VP Direct feed

VR  + Pass thru unless its LSx

I am tipping new diff has 3.9 as that would make it 30% out.

Jaycar box is the way to go put it on the Purple / white wire on dash side of plug.

Also to get OBD2 plug going ensure black/ red  and white /  black wire on ecu loom and main loom line up…[Read more]

HI MAte,

ONLY LSx ECU can adjust speedo….

VN- VP Direct feed

VR  + Pass thru unless its LSx

I am tipping new diff has 3.9 as that would make it 30% out.

Jaycar box is the way to go put it on the Purple / white wire on dash side of plug.

Also to get OBD2 plug going ensure red/black wire on ecu loom and main loom line up. balance of wires…[Read more]

Based on the below I think your problem is COME sent an off the shelf tune which wasn’t written for GRP A manifold.

Second throttle opens around 4 – 4500 so extra air maybe what killing it… what I would do is disconnected the little plate that opens the secondary and see if this improves the power slightly….

According to your tuner is it…[Read more]

Ill do some homework….

Bit on ATM