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General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 26 October 2023, 09:18:26 »
Basically the petrol derivatives appear to have a consistent bellhousing bolt pattern 1.8, 2.0, 2.2, 2.5, 2.6, 3.0 and 3.2
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2
General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 26 October 2023, 08:06:00 »So I have been previously told the GM R25-R28 gearbox is a Getrag 240 box and so is the Ford MT75 but in a different casing. The casings certainly look similar, but two gearboxes companies have today told me they don't think they are the same ?
Does anyone on here have a definitive answer please ?
regards
And a couple of questions.
Do other Omega gear boxes fit the V6. ie is the bellhousing bolt stud pattern similar on any others.
Are any of the synchros on say other omega gearboxes match the R25-28. My gearbox man thinks he can build a box up from bits. Just syncros are the issue. I need synchros on reverse and 5th. I potentially have a spare but not sure. Just wanted to ty to maybe get another or suitable spares.
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General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 24 October 2023, 17:08:40 »
So I have been previously told the GM R25-R28 gearbox is a Getrag 240 box and so is the Ford MT75 but in a different casing. The casings certainly look similar, but two gearboxes companies have today told me they don't think they are the same ?
Does anyone on here have a definitive answer please ?
regards
Does anyone on here have a definitive answer please ?
regards
4
General Car Chat / Re: Get A Dashcam! Just do it
« on: 24 October 2023, 17:00:00 »
I was recently rear ended by an electric Range Rover whilst stationary in my Scimitar. I'm 1200kg he's the best part of 3000kg. Wasn't fast but boy it was a shove. Over £7k for my repairs alone. Thank god I had a dashcam. It was 7am on a wet January morning but thankfully it clearly showed I stopped and was then hit some 10 seconds later. It was only a cheap and cheerful one but the lesson was learned from 2 years previously when a driver crossed a roundabout lane, hit my car, then parked in my lane on the roundabout infront of me, claiming I'd hit him.... I didnt have a camera then...
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General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 24 October 2023, 16:45:19 »If you need to replace the bearings at any point. Try these guys, they've always been extremely helpful, even with really obscure stuff like phosphor bronze bushings for a 1980's cement mixer
https://simplybearings.co.uk/shop/index.html?currency=USD&gclid=CjwKCAjw1t2pBhAFEiwA_-A-NJLvtNhETJOzXRdEJLo3tixQshIN_d8w0etE27EfZ7qqmQZeqoSqhxoCRUwQAvD_BwE
Brilliant, and thank you
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General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 24 October 2023, 11:22:17 »
So the first R28 gearbox we've pulled apart has buggered synchro's on Reverse and 5th. Bearings are ok, but if we need to replace, they're not currently listed anywhere.... Might be able to find alternatives. Oil seals would be required as well....
I was trying to avoid changing gearboxes as a lot of effort was put into the Red top flywheel, clutch and concentric slave set up to get it working correctly.
But at the mo the gearbox in the car is properly dreadful and i've got two broken ones. It might be a case of trying to build One from the Three.
regards
I was trying to avoid changing gearboxes as a lot of effort was put into the Red top flywheel, clutch and concentric slave set up to get it working correctly.
But at the mo the gearbox in the car is properly dreadful and i've got two broken ones. It might be a case of trying to build One from the Three.
regards
7
General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 28 September 2023, 18:54:51 »
I do change gear quickly when on track etc. I have watched videos of others who manage to change smoothly , but I'm always in a bleddy hurry. 
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General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 28 September 2023, 17:35:41 »
yes 
I have investigated
the ZF 8HP. Used prolifically by loads of car manufacturers, virtually indestructible, but needs an ecu controller costing in the region £2k. (After purchase of box, adaptor plate etc.) So probably £2500 min.
Nissan 350Z - Cd009. Currently rare, very desirable by engine swappers and costing min £1800 plus adaptor plate etc. (later one is the one, earlier one has synchro problems) so again into £2k.
I have investigated
the ZF 8HP. Used prolifically by loads of car manufacturers, virtually indestructible, but needs an ecu controller costing in the region £2k. (After purchase of box, adaptor plate etc.) So probably £2500 min.
Nissan 350Z - Cd009. Currently rare, very desirable by engine swappers and costing min £1800 plus adaptor plate etc. (later one is the one, earlier one has synchro problems) so again into £2k.
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General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 28 September 2023, 16:35:15 »
Just after some advice please.
I have two 5 speed gearboxes that bolt onto the back of my 3.2. Both broken. I understand both came off police cars.
As in I bought a broken police car, and took the gearbox / engine from it. The other gearbox I've been told by the seller Lozzz, came from a police car. (lozzz from this forum who also did a omega V6 conversion into a scimitar and a good friend,
Both my broken gearboxes say R25-R28
on the casting there are some numbers stamped in the case
HP 116 02A
1529698
and
GL 136 00B
1480203
Both have a fifth gear ratio of 4 revolutions on the input shaft equates to three revolutions on the output shaft. I'll double check this to get it exactly.
Do any of the stamped number help me to identify exactly the box.
Does anyone know of any spares , eg bearings, that I can get hold of. (Lozzz also has a noisy gearbox )
cheers y'all
I have two 5 speed gearboxes that bolt onto the back of my 3.2. Both broken. I understand both came off police cars.
As in I bought a broken police car, and took the gearbox / engine from it. The other gearbox I've been told by the seller Lozzz, came from a police car. (lozzz from this forum who also did a omega V6 conversion into a scimitar and a good friend,
Both my broken gearboxes say R25-R28
on the casting there are some numbers stamped in the case
HP 116 02A
1529698
and
GL 136 00B
1480203
Both have a fifth gear ratio of 4 revolutions on the input shaft equates to three revolutions on the output shaft. I'll double check this to get it exactly.
Do any of the stamped number help me to identify exactly the box.
Does anyone know of any spares , eg bearings, that I can get hold of. (Lozzz also has a noisy gearbox )
cheers y'all
10
General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 28 September 2023, 15:54:00 »CNC Heads offer off the shelf ported heads for VX V6, https://www.cncheads.co.uk/vauxhall/vauxhall-vectra-3-2/
Might save a lot of experimentation.
Thank you.
After a lot of use, approx 15000 miles year , extremely hard treatment doing track days, drag racing, donuts and burns outs I can confidently say the engine is epic. It is still completely standard, late 3.2 albeit with 3 into 1 headers and lpg conversion. I have however literally just got my hands on a set on 2.5 heads so I might try this. Thank for the link.
On a different tack I have gotten through two 5 speed manual gearboxes. Both have failed on selecting reverse. I have just fitted a third and its completely rubbish. Sold to me in good faith, refund offered however its in situ and a PITA to swap. I'm going to gee if I can get one of them rebuilt, goes to the Falmouth gearbox centre tomorrow.
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General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 31 May 2022, 08:21:33 »
Morning all, hope you are all well.
The car / conversion is running incredibly well. The engine is still pretty much standard apart from K&N filter and three branch manifolds. Runs on lpg all the time but I do have a petrol backup. So two tanks, fuel lines, sets of injectors etc. Switchover is by a single switch on the dash and is pretty seramless.
As you all have noticed LPG is getting problematic, so ive put on a 90L lpg tank to help keep average distances between fillups decent.
Do anything from 50 miles a week to 700 miles a week, regularly, depending on visiting family or attending track days etc.
Anyways finally had a rolling road session last week so managed to get 240bhp running on lpg and a pretty sensible tune, so i can cruise around town easily as well as race when need be. (Car weighs 1200kg with me in it)
Still thinking about engine mods !
still thinking about buying some 2.5 heads , porting them etc. But might be a lot of work. Not even sure if they'd fit. Will keep you posted.
The car / conversion is running incredibly well. The engine is still pretty much standard apart from K&N filter and three branch manifolds. Runs on lpg all the time but I do have a petrol backup. So two tanks, fuel lines, sets of injectors etc. Switchover is by a single switch on the dash and is pretty seramless.
As you all have noticed LPG is getting problematic, so ive put on a 90L lpg tank to help keep average distances between fillups decent.
Do anything from 50 miles a week to 700 miles a week, regularly, depending on visiting family or attending track days etc.
Anyways finally had a rolling road session last week so managed to get 240bhp running on lpg and a pretty sensible tune, so i can cruise around town easily as well as race when need be. (Car weighs 1200kg with me in it)
Still thinking about engine mods !
still thinking about buying some 2.5 heads , porting them etc. But might be a lot of work. Not even sure if they'd fit. Will keep you posted.
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General Car Chat / Re: Building a faster y32se 3.2 v6
« on: 14 October 2021, 06:44:23 »
Hi Kevin, thank you.
At the moment there is no rear multi ram. Or any, actually. It's blanked off. Part of the clean engine bay look (photo already loaded) meant I removed anything superfluous eg power steering, aircon and of course sensors etc. So knock, cam and air rams all went as well.
At the moment there is no rear multi ram. Or any, actually. It's blanked off. Part of the clean engine bay look (photo already loaded) meant I removed anything superfluous eg power steering, aircon and of course sensors etc. So knock, cam and air rams all went as well.
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General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 07 October 2021, 08:13:35 »
A bit out of my budget ! I have a spent a fair bit on the conversion and associated stuff (in steps) so I don't think I'll get away with that one without wifey noticing !!
Are the multirams driven by the ecu. I noticed the one on the back has a two pin connector. Unfortunantly other than that one, I don't think I've got any other bits of the ram setup ?
Are the multirams driven by the ecu. I noticed the one on the back has a two pin connector. Unfortunantly other than that one, I don't think I've got any other bits of the ram setup ?
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General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 06 October 2021, 22:24:45 »Answered in the other thread
Yes thank you. Apols moderator is it worth combining threads somehow. I'd like to continue this informed debate but accidentally set two hares running !!
So Doc, the set up I have goes very well. I'm just trying to get any remaining torques and horses available (Within reason. )
The Dual mass flywheel has been replaced with the Red Top solid one and a helix pressure plate so its spins up well.
I run LPG for every day and sprint / race on petrol
I have an aftermarket dual fuel ECU fully mapable . Literally flick a switch between the two.
Im looking at turbos, high lift cams or X25XE heads (increased compression apparantly )
I run the R28 5 speed box
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General Car Chat / Re: Fitting a Y32SE to a 1972 scimitar GTE.
« on: 06 October 2021, 22:12:59 »I wonder if it would perform better or worse without the multirams, and if that is part of the issue
Cool car nevertheless
Thank you Doctor. I don't have multirams, thinking i knew better, ripped it all out and but on the K&N. But now I'm thinking ... GM spent a load of money developing it, must have been a reason ?
Are they any good.