Hi Newbie Here
#1
Posted 17 April 2017 - 05:58 PM
#2
Posted 17 April 2017 - 09:45 PM
Z20LETs with turbos make too much torque if anything. A GTX3076 on one could make 500 ft/lb easily.
#3
Posted 17 April 2017 - 10:25 PM
#4
Posted 18 April 2017 - 10:47 AM
As a note for you you will need to use the F40 gearbox from the vectra vxr as the F23 doesn't fit the Z/A28NET. Also if you are considering it I would advise the Z28 as it only has two VVT cams not four like the A28. As I'm going standalone ECU it ended up costing £2200 just for the ECU because I'm going for the A28Hi I'm sorry I meant low down torque off boost, I've read the nippers build a couple of times, great job Also I'd like the car to be quiet and standard looking/still have a mongoose exhaust and crank vacuum to fit And pre turbo water/meth to perfect
#5
Posted 18 April 2017 - 06:02 PM
#6
Posted 18 April 2017 - 07:35 PM
WOW!! £2200!!!! I'm more tempted for the a28 now as vvt on all cams would help to smooth out the torque and run higher static compression Also with the engine being over square it'd be nice to have it rev Also be nice to have direct injection as I think the 3.6 in the states has it I think First thing first being to get it in and running Thank you for the response
no problem any help i can be feel free to ask. I'm planning to use the crank front the 3.6 and using forged 3.6 rods to give it a longer stroke which is what the aussies did to make it a 3.2. then run the big turbo. there is another guy doing a Z28 twin turbo car swell.
i know there is a guy on the VXR forum or one of the astra ones can't remember which. that put a Z28 in the back of an astra.
#7
Posted 18 April 2017 - 10:24 PM
#8
Posted 19 April 2017 - 08:34 AM
#9
Posted 19 April 2017 - 02:29 PM
#10
Posted 19 April 2017 - 08:02 PM
#11
Posted 20 April 2017 - 08:36 AM
#12
Posted 20 April 2017 - 10:40 AM
#13
Posted 20 April 2017 - 11:20 AM
Aim is to have near 250ft lbs at 8k depending on cost of valve train and rods
250 ft/lb at 8000 RPM should be very easy on a V6 surely?
My 4 pot engine makes around 360 ft/lb at 8000 RPM with just a mid sized GTX30 turbo. With your extra 50% bangs per rev and a bigger turbo yours should easily be making more torque. The key will be a bigish turbo, good engine breathing, and the parts that actually allow it to safely rev that high.
If anything, the problem you will face is mapping the torque away (ie trying to reduce it to make the car drivable)!!
Edited by Nev, 20 April 2017 - 11:37 AM.
#14
Posted 20 April 2017 - 04:38 PM
#15
Posted 20 April 2017 - 08:29 PM
#16
Posted 20 April 2017 - 08:32 PM
#17
Posted 21 April 2017 - 04:49 AM
Main thing is getting the lump and box in first running as it should with just the Garrett I will just keep an eye out on your build Are you fitting your gt35 to the standard manifold? Is it possible? And how will you have both the waste gates ?As a note aswell something I've discovered is bits for these engines are quite difficult to get hold of and very expensive!! A lot of the time your looking at getting it from the states or Australia. I have a lot of websites saved for parts. But seems one of the best places to go is JZWtuning.
#18
Posted 21 April 2017 - 06:27 AM
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