gary6303 Posted June 5, 2011 Share Posted June 5, 2011 Am looking into changing my fuel tank in my manta coupe, needs to be a custom one from deemontweeks ect, would like a plastic one but not sure about union sizes ect and if i need a swirlpot or not, have fitted a 6 cly engine with fuel injection already have a bosch 044 external fuel pump, and not sure about fuel sender ect as i have a stack dashboard, its a road car by the way. Quote Link to comment Share on other sites More sharing options...
Retro Power Posted June 7, 2011 Share Posted June 7, 2011 Need more detail to say much, but for certain you will need a swirl pot or accumulator of some sort if using injection. Why don't you want the standard manta tank? ( injection one obviously!) We have used them in some fairly wild conversions! Nothing wrong with a coupe gte tank Quote Link to comment Share on other sites More sharing options...
monzta Posted June 8, 2011 Share Posted June 8, 2011 I must agree with retro on this. It seems like alot of trouble for almost nothing... If the car was for track a 20L tank would be a good idea, but when the car is for the street i fail to see the point.. There are several issues to consider if you are going to do this conversion. The fuel level sender will need to be customised to fit the new tank (if that is even a possibility?), otherwise you will need a set of custom fuel level gauges and a sender to go with it and that can be expensive. You will need to make alot of custom fittings, and wirering, and you will need a swirl pot too. Also the tank of the Manta is located at the most (almost) perfect place in all of car history. Precisly on top of the rear axle, so telemetry won´t be screwed when running full / empty tank as much as if you mount it out back. I have done some R6 conversions on the Manta´s and found that relocating the battery to the boot, and removing (lightening) some sheet metal from the front acutally can make a 6 cyl Manta go very well. If you replace the front wings and hood with fibreglass parts you really can shave some much needed Oz of weight off the front end. Also if you are going to fit a front spoiler like a GSi one, or similar you can remove all sheet metal from the nose of the car (behind the bumper) and shave off some extra weight here as well. This will give you a much better and more steady weight bias as mounting a gas tank in the trunk. There are tons of small changes that can be made to lighten the front. Also the entire front grille part can be taken completely apart inside, or you can get a fibreglass one molded (theese were actually sold by Bruhy Exclusiv in Germany some years back), and again lighten the front even more. I would definatly give this tank project a second thought, and think about better ways to put some £ in the car lightening the front end. You will need it ! Quote Link to comment Share on other sites More sharing options...
manta356 Posted June 8, 2011 Share Posted June 8, 2011 If your intent on changing the tank,a Fabricated Escort GP4 tank and base should fit. Quote Link to comment Share on other sites More sharing options...
gary6303 Posted June 12, 2011 Author Share Posted June 12, 2011 ok guys cheers, i will be keeping the gte fuel tank, just got a swerlpot to help the gte fuel tank supply my large engine, anyone do me a deal on a wallbro high volume low pressure fuel pump. Quote Link to comment Share on other sites More sharing options...
rutts Posted June 12, 2011 Share Posted June 12, 2011 gte tank already has a swirlpot fitted as standard you dont need another Quote Link to comment Share on other sites More sharing options...
monzta Posted June 13, 2011 Share Posted June 13, 2011 I used a facet pump on my Monza 3000 with tripple 40+´s and that worked perfectly. Delivered 200litres pr hour but at very low pressure. Quote Link to comment Share on other sites More sharing options...
blake.ian64@gmail.com Posted August 28, 2020 Share Posted August 28, 2020 HI LOOKING FOR OPEL MANTA FUEL TANK 1.8S HATCH 1985 CAN ANY ONE HELP please Quote Link to comment Share on other sites More sharing options...
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