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Chris Melia · 02-14-07, 02:37 PM

Hi Guys

good news is that the ZFQ transaxle is to become a reality Martin Gough, John Wisher and I met with Mike Quaife today to finalise the manufacture and spec of the new ZFQ.

We agreed to a prototype transaxle being produced with its manufacture commencing on Monday 19 February. the prototype trans should be finished in approximately 3 months time.
This trans will be generally as stated above but will now include a dog leg first shift gate and also Pantera rear mounting flanges, and will have the capability to be inverted for use in Pantera's.
There will be a blanking plate and flange on the rear of the casing to allow a purpose made oil pump to be mounted as an optional extra, then driven from the rear of the pinion shaft.

We agreed to a 3.75 CWP for this prototype trans as this ratio is readily available, this gives the following ratio table.

Differential: 3.75
Tire Diam: 26.9 PERCENT DROP FROM
1st Gear: 2.50 DROP 6500 RPM
2nd Gear: 1.60 0.640 4160.0
3rd Gear: 1.17 0.731 4753.1
4th Gear: 0.92 0.786 5111.1
5th Gear: 0.74 0.807 5242.4
SPEED IN GEARS (MPH)
RPM 1st 2nd 3rd 4th 5th
1000 8.5 13.3 18.2 23.2 28.8
1500 12.8 20.0 27.4 34.8 43.1
2000 17.1 26.7 36.5 46.4 57.5
2250 19.2 30.0 41.0 52.2 64.7
2500 21.3 33.3 45.6 58.0 71.9
2800 23.9 37.3 51.1 64.9 80.5
3000 25.6 40.0 54.7 69.6 86.3
3500 29.9 46.7 63.8 81.2 100.6
4000 34.1 53.3 72.9 92.8 115.0
4500 38.4 60.0 82.1 104.4 129.4
5000 42.7 66.7 91.2 116.0 143.8
5500 46.9 73.3 100.3 127.6 158.2
6000 51.2 80.0 109.4 139.2 172.5
6500 55.5 86.7 118.5 150.7 186.9
7000 59.74 93.35 127.65 162.34 201.29
7500 64.01 100.02 136.77 173.94 215.67

Reinforcing webs will be added to strengthen the casing to give the period look a centre push hydraulic thrust bearing will be used with this transaxle and the input shaft will be splined and sized to match that of the ZF.
The ZFQ will be rated at 600BHP and 550 Ft Lbs of torque and will carry a one year parts guarantee for street applications when used within the above power parameters.
Once the prototype box is made we will fit it to a GT40 for rigorous testing, once we are satisfied with its performance, we will then commence the production run.

Regards

Chris.

02-14-07, 02:37 PM	#42 (permalink)
Chris Melia 10 tenths Join Date: Sep 2001 Location: UK GT40: England Suffolk Posts: 1,884	Re: ZFQ new proposed GT40 transaxle Hi Guys good news is that the ZFQ transaxle is to become a reality Martin Gough, John Wisher and I met with Mike Quaife today to finalise the manufacture and spec of the new ZFQ. We agreed to a prototype transaxle being produced with its manufacture commencing on Monday 19 February. the prototype trans should be finished in approximately 3 months time. This trans will be generally as stated above but will now include a dog leg first shift gate and also Pantera rear mounting flanges, and will have the capability to be inverted for use in Pantera's. There will be a blanking plate and flange on the rear of the casing to allow a purpose made oil pump to be mounted as an optional extra, then driven from the rear of the pinion shaft. We agreed to a 3.75 CWP for this prototype trans as this ratio is readily available, this gives the following ratio table. Differential: 3.75 Tire Diam: 26.9 PERCENT DROP FROM 1st Gear: 2.50 DROP 6500 RPM 2nd Gear: 1.60 0.640 4160.0 3rd Gear: 1.17 0.731 4753.1 4th Gear: 0.92 0.786 5111.1 5th Gear: 0.74 0.807 5242.4 SPEED IN GEARS (MPH) RPM 1st 2nd 3rd 4th 5th 1000 8.5 13.3 18.2 23.2 28.8 1500 12.8 20.0 27.4 34.8 43.1 2000 17.1 26.7 36.5 46.4 57.5 2250 19.2 30.0 41.0 52.2 64.7 2500 21.3 33.3 45.6 58.0 71.9 2800 23.9 37.3 51.1 64.9 80.5 3000 25.6 40.0 54.7 69.6 86.3 3500 29.9 46.7 63.8 81.2 100.6 4000 34.1 53.3 72.9 92.8 115.0 4500 38.4 60.0 82.1 104.4 129.4 5000 42.7 66.7 91.2 116.0 143.8 5500 46.9 73.3 100.3 127.6 158.2 6000 51.2 80.0 109.4 139.2 172.5 6500 55.5 86.7 118.5 150.7 186.9 7000 59.74 93.35 127.65 162.34 201.29 7500 64.01 100.02 136.77 173.94 215.67 Reinforcing webs will be added to strengthen the casing to give the period look a centre push hydraulic thrust bearing will be used with this transaxle and the input shaft will be splined and sized to match that of the ZF. The ZFQ will be rated at 600BHP and 550 Ft Lbs of torque and will carry a one year parts guarantee for street applications when used within the above power parameters. Once the prototype box is made we will fit it to a GT40 for rigorous testing, once we are satisfied with its performance, we will then commence the production run. Regards Chris. Last edited by Chris Melia; 02-14-07 at 02:43 PM.