lansalot Posted April 18, 2013 Share Posted April 18, 2013 Sorry for delay Mickey. Stainless bits I ordered. Although I notice I have a few spare bits in the garage! I think it's a spare 90 degree bend and a spare 500mm section that looks like it's had a bit nibbled off.. 2 x Aluminised Universal hanging bracket that will support 45-65mm pipe diameters. (U724565)2 x 90 degree bend with swaged 2.5 inch end. Centre Radius = 130mm. (U026390R)2 x 500mm pipe with swaged 2.5 inch end (U016350R)4 x Double end sleeve L=150mm (U066300R)1 x Stepped sleeve 50.8-57-63.5mm (U076300R)1 x SUPER Silencer box - Oval H=115mm / W=185mm / L=315mm (U316300R)SUBTOTAL £ 152.31POSTAGE £ 6.00VAT £ 27.70TOTAL £ 186.01 Quote Link to comment Share on other sites More sharing options...
Landy-Novice Posted April 18, 2013 Share Posted April 18, 2013 i assume its for a 90?? what extra parts you think i would would need for a 110 300tdi? 3inch flavor of course. looks like i may need to find someone who can tig weld. haha Quote Link to comment Share on other sites More sharing options...
heath robinson Posted April 18, 2013 Share Posted April 18, 2013 and a spare 500mm section that looks like it's had a bit nibbled off... Tough rodents 'round your way! Quote Link to comment Share on other sites More sharing options...
landroversforever Posted April 18, 2013 Share Posted April 18, 2013 is that for a 90 or 110? looks like i may need to find someone who can tig weld. haha find a general fabrication place that would tack it together on the car and then weld up off it, should save you some pennies of their time. Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted April 18, 2013 Author Share Posted April 18, 2013 if you have to pay someone to weld it up then it probably won't work out much cheaper than a longlife system will it Ross? Quote Link to comment Share on other sites More sharing options...
Landy-Novice Posted April 18, 2013 Share Posted April 18, 2013 if you have to pay someone to weld it up then it probably won't work out much cheaper than a longlife system will it Ross? thats a fair point, but try finding a 3inch straight through/high flow in SS for under £500/£600. plus i need to get mine sorted as its a right mess of repaired section, i had to weld (badly, what other type of welding can i do. ) the centre box back on, and being a retro fit 300tdi, there are no off the shelf SS exhausts that fit. Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted April 18, 2013 Author Share Posted April 18, 2013 thats a fair point, but try finding a 3inch straight through/high flow in SS for under £500/£600. Griffin performance starts as 3 inch, has one silencer in the middle and then drops to a 63mm pipe after the silencer. It's about 450 quid Quote Link to comment Share on other sites More sharing options...
landroversforever Posted April 18, 2013 Share Posted April 18, 2013 thats a fair point, but try finding a 3inch straight through/high flow in SS for under £500/£600. plus i need to get mine sorted as its a right mess of repaired section, i had to weld (badly, what other type of welding can i do. ) the centre box back on, and being a retro fit 300tdi, there are no off the shelf SS exhausts that fit. Squeezing the pigeon too hard? Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted April 18, 2013 Author Share Posted April 18, 2013 ......and being a retro fit 300tdi, there are no off the shelf SS exhausts that fit. I wouldn't have thought there were that many positions the engine could have ended up in .... what gearbox do you have? Quote Link to comment Share on other sites More sharing options...
Landy-Novice Posted April 18, 2013 Share Posted April 18, 2013 Squeezing the pigeon too hard? either that or grip fill.. I wouldn't have thought there were that many positions the engine could have ended up in .... what gearbox do you have? R380+LT230, but many years ago, it went for a new exhaust and the LR garage complained about the fact they had to make a new section up as the standard one wouldn't fit Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted April 18, 2013 Author Share Posted April 18, 2013 .... R380+LT230, but many years ago, it went for a new exhaust and the LR garage complained about the fact they had to make a new section up as the standard one wouldn't fit I wonder if that means your LT230 has ended up in a different position? Does it have standard props do you think? Or it could just be the exhaust hangers are in a different place? Was it just the downpipe that was custom made? Quote Link to comment Share on other sites More sharing options...
Landy-Novice Posted April 18, 2013 Share Posted April 18, 2013 I wonder if that means your LT230 has ended up in a different position? Does it have standard props do you think? Or it could just be the exhaust hangers are in a different place? Was it just the downpipe that was custom made? im not 100% sure, i think it was the downpipe that had to be modified, judging by the looks of it... i'll have a look tomorrow and maybe post some photos to show what i mean. (on an off topic note, can you PM the price to change the millage on td5 clocks please? ) Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted April 19, 2013 Author Share Posted April 19, 2013 Will be interesting to see the mod that has been done, might also be worth measuring the location of your engine mounts (distance from front cross member would be a good datum) I can compare them to mine which does take a standard 300 tdi exhaust. You have a PM Quote Link to comment Share on other sites More sharing options...
reb78 Posted April 19, 2013 Share Posted April 19, 2013 I was told 3inch was too big. You can go too big, mess up flow after the turbo and end up melting your turbo IIRC. Quote Link to comment Share on other sites More sharing options...
Aragorn Posted April 19, 2013 Share Posted April 19, 2013 The "too big" thing is a bit of a myth actually. A turbocharger works optimally with minimal back pressure. A 4" stack off the back of the turbine housing and straight thru the bonnet would be optimal in terms of efficiency and flow. It will spool up faster and produce more power with less heat. Rather inconvenient though! The typical approach is to go BIG immediately after the turbo, so a 3" downpipe, then once you get further away from the engine you can drop down to 2.5". I assume this is because as the gasses pass along they're cooling down, and thus take up less space. There are two slight caveats however. If you take an old worn out turbo, and remove all the back pressure, it can prompt the seals to start leaking, ofcourse thats simply because the turbos knackered, and the reduced backpressure means its easier for the oil to leak out past the rings into the turbine housing. Also, if the vehicle isnt tuned properly, the reduction in back pressure and faster spool up can mean the turbo spools much quicker than the ECU expects, and this causes an overboost condition. In reality this isnt a concern on a defender engine, becasue the wastegate is not ECU controlled. On engines with an ECU controlled wastegate actuator, the ECU typically clamps the actuator closed until target boost is reached, then opens it. This maximises spool up and reduces lag. The problem is the ECU needs to know what to expect, and while it has a PID loop to correct things it will still initially overshoot if you make the turbo spool much quicker. In these situations, you can either retune the ECU's wastegate algorithms (assuming you have enough data on the ECU to access them!) or install a manual boost controller in parallel with the ECU controlled valve and use this to set an upper limit on boost. On a traditional setup like the defender however, the boost regulation is entirely mechanical, it simply cant overboost because the wastegate would immediately open. Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted April 19, 2013 Author Share Posted April 19, 2013 I was told 3inch was too big. You can go too big, mess up flow after the turbo and end up melting your turbo IIRC. Maybe that is why the Griffin one reduces after the silencer? I had assumed it was to get it around all the tight bends around the back axle? If I get a chance I'll ask James. Although I've not heard any complaints of melted turbos from his exhausts. Also A friend of Simon Smith ran a straight through 3 inch pipe successfully from what I remember, I'll check with him. Quote Link to comment Share on other sites More sharing options...
Aragorn Posted April 19, 2013 Share Posted April 19, 2013 I wonder if that means your LT230 has ended up in a different position? Does it have standard props do you think? Or it could just be the exhaust hangers are in a different place? Was it just the downpipe that was custom made? If you fitted the R380/LT230 onto the original LT77 mounts, the motor would sit about 2" back from where it does normally in a "proper" 300tdi, so the exhuast would need shortened a little to fit? Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted April 19, 2013 Author Share Posted April 19, 2013 Seems Aragorn has come up with the answer then EDIT: The answer for both questions Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted April 19, 2013 Author Share Posted April 19, 2013 If you fitted the R380/LT230 onto the original LT77 mounts, the motor would sit about 2" back from where it does normally in a "proper" 300tdi, so the exhuast would need shortened a little to fit? Would that mean custom radiator and oil cooler pipes? or would 200 tdi ones fit? I wonder how that works with the gearbox tunnel? Quote Link to comment Share on other sites More sharing options...
Aragorn Posted April 19, 2013 Share Posted April 19, 2013 i suspect you'd need custom pipes, or at least extend the 300 ones by that 2" The 200tdi sits much further back because the bellhousings very short as well as the mounts being 2" further back, so 200tdi pipes wouldnt fit. You'd probably use the LT77 tunnel as the gearbox is sitting further back, and the hole for the shifter wouldnt line up if you tried to use the R380 tunnel? Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted April 19, 2013 Author Share Posted April 19, 2013 All good information that it's handy for Landy-Novice to know for when he needs parts in the future. Cheers Quote Link to comment Share on other sites More sharing options...
mickeyw Posted April 19, 2013 Share Posted April 19, 2013 Sorry for delay Mickey. Stainless bits I ordered.Although I notice I have a few spare bits in the garage! I think it's a spare 90 degree bend and a spare 500mm section that looks like it's had a bit nibbled off.. 2 x Aluminised Universal hanging bracket that will support 45-65mm pipe diameters. (U724565) 2 x 90 degree bend with swaged 2.5 inch end. Centre Radius = 130mm. (U026390R) 2 x 500mm pipe with swaged 2.5 inch end (U016350R) 4 x Double end sleeve L=150mm (U066300R) 1 x Stepped sleeve 50.8-57-63.5mm (U076300R) 1 x SUPER Silencer box - Oval H=115mm / W=185mm / L=315mm (U316300R) SUBTOTAL £ 152.31 POSTAGE £ 6.00 VAT £ 27.70 TOTAL £ 186.01 I would say that is pretty reasonable really Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted April 19, 2013 Author Share Posted April 19, 2013 Sorry for delay Mickey. Stainless bits I ordered. Although I notice I have a few spare bits in the garage! I think it's a spare 90 degree bend and a spare 500mm section that looks like it's had a bit nibbled off.. 2 x Aluminised Universal hanging bracket that will support 45-65mm pipe diameters. (U724565) 2 x 90 degree bend with swaged 2.5 inch end. Centre Radius = 130mm. (U026390R) 2 x 500mm pipe with swaged 2.5 inch end (U016350R) 4 x Double end sleeve L=150mm (U066300R) 1 x Stepped sleeve 50.8-57-63.5mm (U076300R) 1 x SUPER Silencer box - Oval H=115mm / W=185mm / L=315mm (U316300R) SUBTOTAL £ 152.31 POSTAGE £ 6.00 VAT £ 27.70 TOTAL £ 186.01 Just as a clarification are these push together or weld together parts? I think they are all push together so no need to weld, if that is the case what did you do to connect to the turbo? Quote Link to comment Share on other sites More sharing options...
Les Brock Posted April 19, 2013 Share Posted April 19, 2013 I just happen to have a Griffin SS silencer bunged in the shed surplus Quote Link to comment Share on other sites More sharing options...
Landy-Novice Posted April 19, 2013 Share Posted April 19, 2013 some great info guys. keep it coming! now its picture time!! 1st is a kink, looks worse in reality probably about an inch width. 3 repairs on the centre box (inc mine) repair section. another repair large pigeon turd puddle weld 3 cut and shuts.. anyone else agree i need a new exhaust? lol and from from cross member to crank pulley is 6inchs Quote Link to comment Share on other sites More sharing options...
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