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Right my basic mission is to give the Sierra a bit more poke, it supposed to have 115 bhp from the factory, and given its done a fair few mile I guess its about 100 (if I am lucky) bhp now. So IMO I want around 150 to 170 bhp. After much deliberating over 24v granada engines, rover V8s, saab turbo engines and N/A tuning the pinto. I came to some basic realisations..... 1. An engine swap was out, basically because I would need a doner car. This would require space which I don't have. (I know however getting rid of the pinto in favour of something new is a much better idea, but I cant realistically do it) 2. If an engine swap requires a large slice of skill, which I don't possess (yet ;D). 3. Tuning the pinto with highlift cam, ported head etc would give wibblepoo fuel economy and mega emmisions, so that was out too. .....So it came down to sell the Sierra and buy something quicker or add forced induction to the pinto. I have decided to turbocharge it, turbo technics did it back in the early 90's so why can't I. * I know a 24v conversion would ultimatley give more power and make more sense, but I don't have the space or wiring skill to do it. And concidering I could buy a duff 24v engine also worries me, atleast I know that my engine is in good condition and its been well looked after. I have already brought........ .....which I pick up tomorrow and.... ....which is wing its way to me in the post. The plan is to low the compression ratio with a decompression plate from Ferriday engineering, add some extra fuel via a mappable 5th injector, retard the ignition and run about 6 psi of boost. I am starting to question my reason on this, on the grounds that today Cheeqi's mate Undertaker came in to Halfords and said about the Sierra V8 which they are selling, I said that I had decided against it and that I had just brought a manifold, turbo and intercooler for the pinto. To which the reply was "It'll go bang" or words to that effect, I am not sure if he thought I was a total 'tard or hes was just warning me. Either way is the above plan a good one or a bad one. Any advice, abuse, support or slander would be appreciated ;D
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Sierra - here we go again! He has an illness, it's not his fault.
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Can't say what's in the undertaker's mind, he may have another thought. But my guess is he's thinking you're going to use the standard c:r.
If it were my bird, I'd do the job right. Skip the decomp plate cost and double headgasket trash, and go right to forged turbo pistons. Job done. Button it up, run maybe 6-8 boost. You'll be fine if you tend to all the details.
BTW, who made that exh manifold? I'd like a few of those.
Norm
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Team Blitz Ford Capri parts worldwide: Restoration, Road, or Race. Used, Repro, and NOS, ranging from scabby to perfect. Itching your Capri jones since 1979! Buy, sell, trade. www.teamblitz.com blitz@teamblitz.com
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If it were my bird, I'd do the job right. Skip the decomp plate cost and double headgasket trash, and go right to forged turbo pistons. Job done. Button it up, run maybe 6-8 boost. You'll be fine if you tend to all the details. BTW, who made that exh manifold? I'd like a few of those. Norm Forged pistons are way out of my budget. Its either a decompression plate or low comp pistons from a transit pinto. I don't know what make the manifold it, but I'll take a look at the castings tomorrow.
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Sierra - here we go again! He has an illness, it's not his fault.
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haggis
Part of things
Posts: 459
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itll only go bang if you bodge it
as you said before, TT done it so why cant you
some inspiration ---->
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B-8-D
Posted a lot
down to one car!!
Posts: 4,038
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ive never liked the idea of 2 hg's tbh.. twice the chance of blowing a hg and then give it more hell with turbocharging!! don't like it! i havent done it though so I'm not talking through experience so who knows i just don't think its right! i was going to supercharge a 2l pinto once after a 1600 i done and was going to use cossie pistons with either resized injection rods of cossie rods to drop the cr.. fith injector and a boost retarder is the right way to got though... get your cr down to around 7.5:1 and run 11psi no probs i recon with an intercooler prob run more than that ok but 11 would be safe.. remember to dowel the flywheel though as they have a habit of parting co with the crank with anything much over 140hp ish.. but yes do it!! but mpg WILL go down though prob a fair amount!! si
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If it were my bird, I'd do the job right. Skip the decomp plate cost and double headgasket trash, and go right to forged turbo pistons. Job done. Button it up, run maybe 6-8 boost. You'll be fine if you tend to all the details. BTW, who made that exh manifold? I'd like a few of those. Norm Forged pistons are way out of my budget. Its either a decompression plate or low comp pistons from a transit pinto. I don't know what make the manifold it, but I'll take a look at the castings tomorrow. Understood about the budget, mate. OK, then I'd get the low comp pistons (8:1 ratio?) out of the tranny. Perhaps they're at least hypers. You sure nobody's got a set of decent used Cossie YB pistons you could grab? Maybe from a joe who has gone to NA.
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Team Blitz Ford Capri parts worldwide: Restoration, Road, or Race. Used, Repro, and NOS, ranging from scabby to perfect. Itching your Capri jones since 1979! Buy, sell, trade. www.teamblitz.com blitz@teamblitz.com
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B-8-D
Posted a lot
down to one car!!
Posts: 4,038
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Forged pistons are way out of my budget. Its either a decompression plate or low comp pistons from a transit pinto. I don't know what make the manifold it, but I'll take a look at the castings tomorrow. Understood about the budget, mate. OK, then I'd get the low comp pistons (8:1 ratio?) out of the tranny. Perhaps they're at least hypers. You sure nobody's got a set of decent used Cossie YB pistons you could grab? Maybe from a joe who has gone to NA. i got a set of yb std used pistons rings and pins for 50 quid on ebay and about 30 uid to resize the rods aint that bad really.. transit pistons are used for forced induction but i don't know how strong they are being cast jobbies?? si
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Over here, boost is BIG, and I've turboed a fair share of engines. I've never used forged pistons, always stock internals with double gaskets or even singles. Keeping an engine together all comes down to having a proper tune. Proper fueling and ignition goes a looooooooong way towards a long life to a turboed naturally-aspirated engine. My best setup was 17psi on a stock VW 2.0 bottom end with a 16v head on it (dished pistons + dished combustion chamber = 8:1), it made 259whp and 276 ft/lbs (so roughly 270 hp to the crank). Never blew a gasket, or had any downtime due to explosions. All stock pistons, rods, and crank, with stock head gasket and ARP headstuds. Do the double gasket or spacer plate, ensure there is enough fuel and ignition retard under boost, and never look back .
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1982 VW Rabbit 4-door (apart) 1992 Passat Wagon Syncro (daily)
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Have a word with Cosworth? though they did change the head, and make a few alterations elsewhere.
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205 GTi Mi16
205 XS - Now in filmidget's signature
Clio dci 80
I've found in life if someone is an idiot, they generally stay and idiot.
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I only vaguely recall the TT conversion but, as I recall, a lot of their conversions were supplied to dealers in kit form. This makes me wonder whether they did any internal engine mods at all. Might be worth researching before you start.
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Jaguar S-Type 3.0 SE
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6 psi will not need much of a drop in CR. effecient intercooling is whats needed you can run about 9:1 or maybe a smidge less with upto about 8-9psi I'd geuss (reasonably safely). its not retarding the ignition either, it only needs a retard when the boost comes on full. get a two way advance/retard capsule. once you play and pay for the dodges, you realise how cheap megasquirt2 is. remember that you'll lose a psi through the intercooling. I assume your pinto is EFI already? junk the fith injector idea, get proper sized injectors (i have some tables saved if you need) and a manifold referenced pressure regulator. a fiddle with the AFM spring and its there. low compression equals lag and lost squish area which is important. can't tell I've been reading up on this recently, can you ;D
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Understood about the budget, mate. OK, then I'd get the low comp pistons (8:1 ratio?) out of the tranny. Perhaps they're at least hypers. You sure nobody's got a set of decent used Cossie YB pistons you could grab? Maybe from a joe who has gone to NA. I got a set of yb std used pistons rings and pins for 50 quid on ebay and about 30 uid to resize the rods aint that bad really.. transit pistons are used for forced induction but I don't know how strong they are being cast jobbies?? si Robin, if your bore is std. And this is a nice set of pistons, with rings, and pins, jump on this! Sounds like the ticket. Forged is the way to go if you can afford it. 50 Quid? A gift.
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Team Blitz Ford Capri parts worldwide: Restoration, Road, or Race. Used, Repro, and NOS, ranging from scabby to perfect. Itching your Capri jones since 1979! Buy, sell, trade. www.teamblitz.com blitz@teamblitz.com
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6 psi will not need much of a drop in CR. effecient intercooling is whats needed ....... ......I assume your pinto is EFI already? junk the fith injector idea, get proper sized injectors (i have some tables saved if you need) and a manifold referenced pressure regulator. The intercooler is a Saab 9000 item and is apparently one of the biggest OE item you can get (so fingers crossed it'll be efficent) As for the managment side of things, the fifth injector appealed to me cause it only require a small amount of mapping (mapping/setting up cost big bucks), although I do have a set of cosworth yellow injectors the idea of putting in aftermarket management is a bit daunting to say the least.
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Sierra - here we go again! He has an illness, it's not his fault.
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There was a feature in this month's PPC on Saab 9000s. Apparently their intercoolers are often robbed by Scooby owners as an upgrade so you should be ok there.
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Jaguar S-Type 3.0 SE
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approx. 22lb/hr injectors (based on 160bhp prediction) and an adjustable manifold referenced fuel pressure regulator. tighter sring in the airflow meter. right, thats the fueling sorted
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B-8-D
Posted a lot
down to one car!!
Posts: 4,038
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I got a set of yb std used pistons rings and pins for 50 quid on ebay and about 30 uid to resize the rods aint that bad really.. transit pistons are used for forced induction but I don't know how strong they are being cast jobbies?? si Robin, if your bore is std. And this is a nice set of pistons, with rings, and pins, jump on this! Sounds like the ticket. Forged is the way to go if you can afford it. 50 Quid? A gift. these were bought and sold some time ago but 50 quid will buy some good second hand ones ok... the ones i had were mint!! si
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I only vaguely recall the TT conversion but, as I recall, a lot of their conversions were supplied to dealers in kit form. This makes me wonder whether they did any internal engine mods at all. Might be worth researching before you start. From what I understand the original TT conversion did not lower the CR. at all, it only ran 6 psi boost max and pumped in loads of extra fuel to prevent det.
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Sierra - here we go again! He has an illness, it's not his fault.
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What kind of fuel and ign system is it? I'm assuming it is lambda type efi and not k-jet or something like that? if it's efi cant you get a remap?/aftermarket chip?/bigger injectors? For bigger intercoolers on a budget look for ones from commercial vehicles, I had one off a 7.5 ton Iveco on my old car that worked well. (Ebay £75)
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1985 Bedford CF2 camper 1991 Volvo 240 Turbo
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What kind of fuel and ign system is it? I'm assuming it is lambda type efi and not k-jet or something like that? if it's efi cant you get a remap?/aftermarket chip?/bigger injectors? Pinto Efi is very basic system it has no lambda sensor, it is non-sequential and uses a vane type air flow meter. My guess is that most places wont be interested in messing about with the original ECU. Edit: nice intercoolers mate its a monster, the saab one only set me back £32 inc. p+p so i'm quite happy ;D
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Last Edit: Mar 9, 2008 20:11:09 GMT by Robinxr4i
Sierra - here we go again! He has an illness, it's not his fault.
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its L-jetronic, the same as my bmw 2002 runs. its surprisingly easy to tune. I said how to sort the fuelling. its the ignition thats the hard bit. efficient intercooling raises the detonation threshold significantly, enough to run a better CR. by lowering the CR you lose squish area. squish in itself raises the threshold of detonation, so why would you get you rid of it?
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