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Author Topic: sierra twin turbo/supercharged  (Read 4291 times)

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Offline mouldytbags

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Offline littlegems4x4

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sierra twin turbo/supercharged
« Reply #1 on: June 23, 2008, 13:59:14 PM »
Awesome car that, had a good read about it in PF this month, I'd love to have that  

sleepy-steve

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sierra twin turbo/supercharged
« Reply #2 on: June 26, 2008, 13:46:53 PM »
why use both turbo and supercharger? surely its one or the other?

IansSaph

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sierra twin turbo/supercharged
« Reply #3 on: June 26, 2008, 15:23:03 PM »
Nah is only using small turbos i guess they are for low down power/tourque then the supercharger provides the boost for the top end, is there a graph in PF....? 500BHP seems ambitous.... does it not?!?!

Ian

Sorry just read its never been on the dyno.... i think i'll get the mag and read it for myself...

popuptoaster

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sierra twin turbo/supercharged
« Reply #4 on: June 26, 2008, 18:01:17 PM »
cars that use both usually use the engine driven supercharger at low revs as they can make instant boost with no lag and the turbo at higher revs as it dont sap as much power as an engine driven charger.

sleepy-steve

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sierra twin turbo/supercharged
« Reply #5 on: June 26, 2008, 18:12:42 PM »
seems an expensive way of getting 500 odd bhp, dont know how much has been spent on it but a tuned 5.0lt mustang v8 would push that kind of power would it not?

popuptoaster

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sierra twin turbo/supercharged
« Reply #6 on: June 26, 2008, 18:26:51 PM »
usually the cheapest way to BHP is to throw a yank V8 in, an LT4 makes upwards of 330bhp depending on the version and can be bought quite cheap with a 6 speed manual on the back, the downside is they are quite big and heavy and use lots of petrol.

My mates old corvette though has a 5 litre in it thats less powerfull than my 24v!

Offline robrs2

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sierra twin turbo/supercharged
« Reply #7 on: June 26, 2008, 21:58:35 PM »
Engine built by a lad near me. Was making 450bhp in a mk2 cortina 4x4 with 400 bhp of gas also.





sleepy-steve

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sierra twin turbo/supercharged
« Reply #8 on: June 26, 2008, 22:24:00 PM »
now thats cool! looks like a cockpit of a chopper.

its funny, 2.9 24v = 200 ish bhp
              3.5 v8 (rover) =156 bhp
both efi but very different mpg.

when you start going for maximum speed or power...who cares about mpg!

Offline JFB Tech

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sierra twin turbo/supercharged
« Reply #9 on: June 28, 2008, 00:05:42 AM »
Loving the conrod supporting the nose of the 'charger
Drive it like you mean it!
IPB Image

popuptoaster

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sierra twin turbo/supercharged
« Reply #10 on: June 28, 2008, 01:08:32 AM »
Quote from: sleepy-steve
now thats cool! looks like a cockpit of a chopper.

its funny, 2.9 24v = 200 ish bhp
              3.5 v8 (rover) =156 bhp
both efi but very different mpg.

when you start going for maximum speed or power...who cares about mpg!



mines a daily driver and the only car i have, it has to have reasonable mpg, no point me having something super fast that i cant afford to drive. :D

Super 12v

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sierra twin turbo/supercharged
« Reply #11 on: June 28, 2008, 09:26:28 AM »
Quote from: sleepy-steve

              3.5 v8 (rover) =156 bhp
both efi but very different mpg.

I thought the EFI SD1 Vitesse lump was closer to 190bhp in EFI format and the twin trottle flavour was slightly different again, the 150 bhp derivitives were the older P6 & SD1 Carb'd engines.

Rob

Offline capri v8 driver

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sierra twin turbo/supercharged
« Reply #12 on: June 28, 2008, 19:01:37 PM »
Quote from: Super 12v
I thought the EFI SD1 Vitesse lump was closer to 190bhp in EFI format and the twin trottle flavour was slightly different again, the 150 bhp derivitives were the older P6 & SD1 Carb'd engines.

Rob

the carb models where between 143 to 155 hp depending on the heads and compression. the efi v8 had 190 hp.

maybe the ford 5.0 ho v8 efi whit 225 hp and 395 nm is a smarter choice.

greetz paul.

capri v8 driver.
greetz Paul.

Capri V8 Driver.

 

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