mat88
Yorkshire and The Humber
Posts: 1,542
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Congrats on the first start... Sounds mega!
Wastegates aren't a straight yes/no answer, least they didn't seem to be from the hours of reading I did 🤣 (I'm not an expert on this subject btw just what I've learnt from the last 2 year of my headache)..
It depends how well the exhaust flows into them or if there just "t" off the pipe somehwhere.. also how much boost you've available Vs how much you want (massive turbo on a big engine but only wanting low boost will require more wastegate surface area than a small turbo/engine combo running high boost, as youl need to get rid of "more" to be at the right boost level)... That's probably horribly explained but makes sense in my head haha.
For reference I've got a single genuine 50mm gate on a 4litre turbo V8 with gt35 size turbo and it held 7psi rock solid with no boost creep, it also holds 12psi with no creep either.. your better having too much wastegate surface area than not enough, but not if it won't fit.
All I will say is if there eBay specials (which I was using originally) check they actually seal, and open at the proper boost level. The quality seems a bit hit and miss (mine was a miss) and it didn't seal properly from the get go..
Top stuff!
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pork
Posted a lot
Posts: 1,666
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Congrats on the first start... Sounds mega! Wastegates aren't a straight yes/no answer, least they didn't seem to be from the hours of reading I did 🤣 (I'm not an expert on this subject btw just what I've learnt from the last 2 year of my headache).. It depends how well the exhaust flows into them or if there just "t" off the pipe somehwhere.. also how much boost you've available Vs how much you want (massive turbo on a big engine but only wanting low boost will require more wastegate surface area than a small turbo/engine combo running high boost, as youl need to get rid of "more" to be at the right boost level)... That's probably horribly explained but makes sense in my head haha. For reference I've got a single genuine 50mm gate on a 4litre turbo V8 with gt35 size turbo and it held 7psi rock solid with no boost creep, it also holds 12psi with no creep either.. your better having too much wastegate surface area than not enough, but not if it won't fit. All I will say is if there eBay specials (which I was using originally) check they actually seal, and open at the proper boost level. The quality seems a bit hit and miss (mine was a miss) and it didn't seal properly from the get go.. Top stuff! Cheers, makes perfect sense 👍 The wastegates are from ‘innovative’, And are 50mm openings I can fit one on…..if I need two, then I’m gunna have to redesign the exhaust 🤦♂️ |
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pork
Posted a lot
Posts: 1,666
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Nov 12, 2021 17:55:45 GMT
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pork
Posted a lot
Posts: 1,666
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Nov 12, 2021 17:56:12 GMT
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Had to re do the exhaust, only way to fit the wastegates in a good place
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mat88
Yorkshire and The Humber
Posts: 1,542
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Nov 12, 2021 18:17:47 GMT
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Had to re do the exhaust, only way to fit the wastegates in a good place I'm no expert but that looks like it will work. Dare I ask where the screamer pipes are going to run? It's busy in there isn't it 😂 |
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pork
Posted a lot
Posts: 1,666
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Nov 12, 2021 18:24:34 GMT
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Had to re do the exhaust, only way to fit the wastegates in a good place I'm no expert but that looks like it will work. Dare I ask where the screamer pipes are going to run? It's busy in there isn't it 😂 That’s next in the list 👍 |
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Nov 12, 2021 18:44:23 GMT
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Looks serious  |
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mat88
Yorkshire and The Humber
Posts: 1,542
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Nov 12, 2021 20:35:39 GMT
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I'm no expert but that looks like it will work. Dare I ask where the screamer pipes are going to run? It's busy in there isn't it 😂 That’s next in the list 👍 Straight up and through the bonnet (hilarious until you want to drive at night and can't see for the flames) |
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pork
Posted a lot
Posts: 1,666
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Jan 27, 2022 20:13:47 GMT
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 Been a while since I’ve updated ……been mega busy at work, And the days I did have on the car went terrible, threw a strop and didn’t touch it for a while 😂 Main problem was the brakes, the pedal wouldn’t stay firm unless you pumped up the pressure After many days of checking for leaks, bleeding the system over and over again, I read this little nugget of info “If the master cylinder is mounted lower than the disc brake calipers, some fluid flowback to the master cylinder reservoir may occur, thus creating a vacuum effect that retracts the caliper pistons into the housing. This will cause the pedal to go to the floor on the first stroke until it has “pumped up” and has moved all the pistons out against the pad again.” So I needed these little residual pressure valves…..no more having to pump up brake pressure, Nice and firm 👍💪💪 Next I Need to replace my radiator (hole in it 🤦♂️). Then nearly test drive time |
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pork
Posted a lot
Posts: 1,666
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Jan 29, 2022 18:39:48 GMT
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Need a new radiator….then a test drive out
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Davey
Posted a lot
Resident Tyre Nerd.
Posts: 2,350
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Jan 31, 2022 12:04:45 GMT
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Exciting times!
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K11 Micra x3 - Mk3 astra - Seat Marbella - Mk6 Escort estate - B5 Passat - Alfa 156 estate - E36 compact
Mk2 MR2 T-bar - E46 328i - Skoda Superb - Fiat seicento - 6n2 Polo - 6n polo 1.6 - Mk1 GS300
EU8 civic type S - MG ZT cdti - R56 MINI Cooper S - Audi A3 8p - Jaguar XF (X250) - FN2 Civic Type R - Mk2 2.0i Ford Focus - Mercedes W212 E250
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pork
Posted a lot
Posts: 1,666
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Feb 12, 2022 12:04:20 GMT
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It moves!! It’s a car !!!
Lots to do, but it moves 😂
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Paul Y
Posted a lot
Posts: 1,951
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Feb 12, 2022 12:54:20 GMT
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Most excellent! P..  |
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Davey
Posted a lot
Resident Tyre Nerd.
Posts: 2,350
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Feb 15, 2022 11:40:28 GMT
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Yay! keep at it.
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K11 Micra x3 - Mk3 astra - Seat Marbella - Mk6 Escort estate - B5 Passat - Alfa 156 estate - E36 compact
Mk2 MR2 T-bar - E46 328i - Skoda Superb - Fiat seicento - 6n2 Polo - 6n polo 1.6 - Mk1 GS300
EU8 civic type S - MG ZT cdti - R56 MINI Cooper S - Audi A3 8p - Jaguar XF (X250) - FN2 Civic Type R - Mk2 2.0i Ford Focus - Mercedes W212 E250
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Feb 15, 2022 13:00:20 GMT
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No sound on the PC so had to use my phone, sounds great! did the neighbours think the world had come to an end?!!
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pork
Posted a lot
Posts: 1,666
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Feb 15, 2022 21:44:29 GMT
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They were ok really……see how they feel this weekend when I take it up and down the road a few time 😂
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pork
Posted a lot
Posts: 1,666
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Sweet! slight traction issues |
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Holy cow…..😳
Sounds like the gods are angry….. really angry!
Nick
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1967 Triumph Vitesse convertible (old friend)
1996 Audi A6 2.5 TDI Avant (still durability testing)
1972 GT6 Mk3 (Restored after loong rest & getting the hang of being a car again)
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mikek
Part of things
Posts: 146
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Holy cow…..😳 Sounds like the gods are angry….. really angry! Nick And so they should be lol Awesome 👍 |
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