smith4
Part of things
Posts: 268 
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Jan 31, 2019 13:41:59 GMT
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Thanks V8ian.
I knew about the flapper and later V8 systems but hadn't heard of the Federal one, so looked it up.
I already have the 4 barrel, and don't want to go down the fuel injection route with swirl pot/ecu etc.. Just need the right inlet manifold to get it all bolted together.
The JWR Offenhauser is the lowest, but from reviews/reading up, it doesn't allow great breathing at higher revs. The Offenhauser 360 is a little higher profile and gives much better top end revs in comparison. The Edlebrock Performer is higher profile again, and gives even better breathing higher up the revs, but too tall to keep under the bonnet buldge.
The Offernauser 360 is the best bet, and can have about 5mms milled off the top to lower the profile if necessary. Together with a drop-base air filter (that looks like it hides the majority of the carb!), it should hopefully fit under the bonnet buldge.
If it still doesn't, the buldge in the bonnet starts off tall at the front, and then gets smaller in height towards the back of the bonnet. The plan is to add some sheet metal strips to raise the rear of the buldge if thats the only way to not cut a hole for the air filter.
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smith4
Part of things
Posts: 268
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Jan 31, 2019 14:03:39 GMT
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Kusanagi has done a similar mod to his GT6 bonnet buldge. You wouldn't notice it unless you were looking for it. Nicely done!
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samta22
Club Retro Rides Member
Stuck in once more...
Posts: 1,276
Club RR Member Number: 32
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1967 Triumph GT6 (Smith4)samta22
@samta22
Club Retro Rides Member 32
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Jan 31, 2019 14:09:55 GMT
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I'm going a similar route for my 'B...  car will be used for lazy driving rather than speed so happy to compromise in that respect. i've not yet made the jump/investment in terms of carb or fuel injection yet so watching with interest. ETA: Initial thoughts are to go the FITECH route as per bjornagn Molvo project - another system worth researching if you've not completely ruled out injection. |
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Last Edit: Jan 31, 2019 14:19:59 GMT by samta22
'37 Austin 7 '56 Austin A35 '58 Austin A35 '65 Triumph Herald 12/50 '69 MGB GT '74 MGB GT V8'73 TA22 Toyota Celica restoration'95 Mercedes SL320 '04 MGTF 135 'Cool Blue' (Mrs' Baby) '05 Land Rover Discovery 3 V8 '67 Abarth 595 (Mrs' runabout) '18 Disco V |
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Darkspeed
Club Retro Rides Member
Posts: 4,880
Club RR Member Number: 39
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1967 Triumph GT6 (Smith4)Darkspeed
@darkspeed
Club Retro Rides Member 39
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Jan 31, 2019 21:59:12 GMT
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I don't think that the 360 is taller than the dreadful stranglair dual port I think it's the other way around. And as the carb mount is at pretty steep angle on the 360 taking a few degrees off of the angle lowers is further.   |
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goldnrust
West Midlands
Minimalist
Posts: 1,887
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Making good progress with the tidying up of the floor pans. It's a bit of a soul destroying job, but so worth it when you put the fresh paint on and it's transformed into a neat tidy looking floor  May I ask what gearbox you're using with your v8 and whether you had to notch the chassis to get it to fit? A v8 swap into my spitfire is an idea I've been toying with for a while and I'm interested in the different ways people have gone about it. |
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Ah man, all about this! Ace work! I swear, when the truck is done I'm doing something like this... bookmarked AF.
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smith4
Part of things
Posts: 268
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I'm going a similar route for my B' car will be used for lazy driving rather than speed so happy to compromise in that respect. i've not yet made the jump/investment in terms of carb or fuel injection yet so watching with interest. ETA: Initial thoughts are to go the FITECH route as per bjornagn Molvo project - another system worth researching if you've not completely ruled out injection. Thanks Samta22. I do prefer carbs to injection, but thanks for the FITECH idea. Great to see other people's work/projects. |
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smith4
Part of things
Posts: 268
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I don't think that the 360 is taller than the dreadful stranglair dual port I think it's the other way around. And as the carb mount is at pretty steep angle on the 360 taking a few degrees off of the angle lowers is further. That's the one, Darkspeed. I've only found one other Offenhauser 360 online showing the angle milled down to make it lower/flatter, but yours shows it well. Thanks - this is my planned route. |
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smith4
Part of things
Posts: 268
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Making good progress with the tidying up of the floor pans. It's a bit of a soul destroying job, but so worth it when you put the fresh paint on and it's transformed into a neat tidy looking floor May I ask what gearbox you're using with your v8 and whether you had to notch the chassis to get it to fit? A v8 swap into my spitfire is an idea I've been toying with for a while and I'm interested in the different ways people have gone about it. Thanks Goldenrust. I have the LT77 (2WD 5 speed). Looking at most other people's Spitfire/GT6 Rover V8 conversions, if they cut the bulkhead and get the engine back enough, then they put a cut out/notch in the inside of the chassis rail for the slave cylinder housing as this sticks out of the bell housing. I am looking at a way around it though! |
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smith4
Part of things
Posts: 268
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Ah man, all about this! Ace work! I swear, when the truck is done I'm doing something like this... bookmarked AF. Thank-you ☺ |
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goldnrust
West Midlands
Minimalist
Posts: 1,887
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Making good progress with the tidying up of the floor pans. It's a bit of a soul destroying job, but so worth it when you put the fresh paint on and it's transformed into a neat tidy looking floor May I ask what gearbox you're using with your v8 and whether you had to notch the chassis to get it to fit? A v8 swap into my spitfire is an idea I've been toying with for a while and I'm interested in the different ways people have gone about it. Thanks Goldenrust. I have the LT77 (2WD 5 speed). Looking at most other people's Spitfire/GT6 Rover V8 conversions, if they cut the bulkhead and get the engine back enough, then they put a cut out/notch in the inside of the chassis rail for the slave cylinder housing as this sticks out of the bell housing. I am looking at a way around it though! I shall watch with interest, good luck! If it's just the clutch slave that needs a notch then I'm sure there's a way round that, I wonder if it would be possible to convert to a concentric slave cylinder or something? |
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If I was doing my spit V8 conversion again I would be using a concentric clutch ( probably a Saab ) and would modify the bell housing to remove the moulding for the clutch release arm so there would be no need for any chassis mods. By moving the engine back ( with cutting the bulkhead ) gives you more room for your rad ( use a P6 pump and crank damper it gives even more clearance ) and it gives the car better balance ( mine is about 50/50 front to rear ). On an earlier version of my car I ran a holly 4 barrel, to get it under the bonnet I got a SU V8 inlet and cut the top off and made an adaptor which was then bolted on top of the manifold, this enabled me to fix the holly to the inlet, a custom air intake was also made.
 P1000247 (1024x575) by karl stroud, on Flickr
The only problem I found on putting a holly under the hood was on hot days or on long runs if the engine was turned off the fuel would boil in the float chambers due to lack of air flow around the carb and cause terrible starting problems, this was one of the reasons I converted the engine to fuel injection.
If you have any questions about putting the V8 in your car just ask me. |
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71 ford mustang being restored
71 triumph spitfire 3.5 v8
88 bmw e32 735 --SOLD--
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smith4
Part of things
Posts: 268
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[/quote]I shall watch with interest, good luck! If it's just the clutch slave that needs a notch then I'm sure there's a way round that, I wonder if it would be possible to convert to a concentric slave cylinder or something?
[/quote]
Thanks.
Looks like Kusanagi has answered ☺
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smith4
Part of things
Posts: 268
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If I was doing my spit V8 conversion again I would be using a concentric clutch ( probably a Saab ) and would modify the bell housing to remove the moulding for the clutch release arm so there would be no need for any chassis mods. By moving the engine back ( with cutting the bulkhead ) gives you more room for your rad ( use a P6 pump and crank damper it gives even more clearance ) and it gives the car better balance ( mine is about 50/50 front to rear ). On an earlier version of my car I ran a holly 4 barrel, to get it under the bonnet I got a SU V8 inlet and cut the top off and made an adaptor which was then bolted on top of the manifold, this enabled me to fix the holly to the inlet, a custom air ...
The only problem I found on putting a holly under the hood was on hot days or on long runs if the engine was turned off the fuel would boil in the float chambers due to lack of air flow around the carb and cause terrible starting problems, this was one of the reasons I converted the engine to fuel injection.
If you have any questions about putting the V8 in your car just ask me. Thank-you! I am sure I will be pm'ing you when I can get onto the V8 bit! I have the short from end (water pump, pulley, alternator bracket) so as you said this gets me more room for the radiator/fans. I've had a quick look into concentric slaves today and will continue to - using one should mean I can aim for 50/50 weight distribution as the bulkhead has already been amended for the V8 to be mounted further back. If a concentric slave will work, then the slave cylinder housing that hits against the chassis rail can be removed. Thanks for the suggestions and help. |
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smith4
Part of things
Posts: 268
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Feb 18, 2019 16:02:36 GMT
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So, we moved house a little while ago - so no real updates. Got GT6 over this way on Wednesday. Paul from PB Logistix was the guy that moved the GT6 from Hampshire to Beds and now from Beds to our new place - A real nice guy and helped with pushing the GT6 up into the pod and down the driveway at the new place. Old place loaded up:  New place - ready to be unloaded:  I had to raise the GT6 as much as possible (taking the coilovers off the rear and bolting it to the normal (higher) rear leaf spring mounts, and taking off the camber spaces off the front and winding the coilovers all the way up on the front), and it did get onto the ramps for the pod without catching. Now in the new garage (to be cleaned out for more space) and back down lower:  |
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Last Edit: Feb 18, 2019 16:03:46 GMT by smith4
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faiz
Part of things
Posts: 75
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Feb 18, 2019 22:23:48 GMT
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I've always loved the GT6 but this is incredible! 👏🏽
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smith4
Part of things
Posts: 268
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Feb 19, 2019 14:26:28 GMT
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Thanks Faiz,
Just need to build the shed and empty the garage of non-car stuff into it to give more room to work around the GT6.
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faiz
Part of things
Posts: 75
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Feb 19, 2019 19:06:42 GMT
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Thanks Faiz, Just need to build the shed and empty the garage of non-car stuff into it to give more room to work around the GT6. Do it! Enough motivation knowing that we all want to see it! Always a faf having to do that stuff though |
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smith4
Part of things
Posts: 268
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Feb 19, 2019 22:12:57 GMT
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Thanks Faiz, Just need to build the shed and empty the garage of non-car stuff into it to give more room to work around the GT6. Do it! Enough motivation knowing that we all want to see it! Always a faf having to do that stuff though Thank-you! Always heartening to see the GT6 getting appreciated. It seems to have been put on the Rollin' on Steels Facebook page somehow as well! I've been working on some more of the shed done today . . . so closer to getting more space 🙂 |
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Mar 13, 2019 16:16:40 GMT
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Hi mate. I just signed up to this forum just because of finding this project! The reason why... my dad owned a GT6 back in the 80s, when he unfortunately passed away, and the car was sold soon after. About 5 years ago I posted up pictures throughout a few forums hoping to find some information on it. I never did and just forgot about it. However, late last year someone made contact with me through finding my post on PistonHeads - I couldn't believe it but it was the owner of my dads car! His son had seen me post the reg up and told his dad to email me, crazy huh. He said he saved it from the brink of being scrapped as where it was stored 'the grass was almost up to the door handles' Anyway he done a very good job of saving it, spending thousands including a new engine and complete paint job. He's too far to just go and visit the car but I've expressed interest of seeing it one day if I'm nearby. Sorry if I'm boring you with a history about someone/a car you don't even know, but I am too into shall we call it 'stance' so I'm really interested in seeing how your project turns out! I did think, if I ever got my hands on my dads car would I keep it standard like he did, or modify it the way I wanted it... and tbh, I'd modify it because I'm sure he'd like me to put my own touch on it  So please keep updating! Thanks for reading... Olly |
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