Cosworth 24v HELP
Discussion
AlfaSpider said:
Is it a BOA or BOB engine you've gone for? I'm looking at this myself for an S1 and would be interested to know about what's involved in fitting either.
Cosworth BOA parts & spares are getting harder to source and more and more expensive to buy.DamianS3 https://www.pistonheads.com/gassing/profile.asp?na...
has fitted a more readily available 3.0 V6 Duratec ( Jaguar S type ) engine into his S with rather pleasing results.
May be the way forward if you fancy an upgrade?
Edited by glenrobbo on Thursday 13th July 23:26
Alpha,
The BOA's are the most popular and the easiest to fit from an ecu perspective. Emeralds are popular. The BOB's have a slightly more complicated intake system that most people don't like.
Best build tends to be BOB bottom end, crank, rods and pistons fitted with BOA heads and timing chest parts. Use BOB camshafts. Or just keep it simple and buy a BOA. With BOB cams and an aftermarket plenum you'll see 250 hp/ish.
The BOA's are the most popular and the easiest to fit from an ecu perspective. Emeralds are popular. The BOB's have a slightly more complicated intake system that most people don't like.
Best build tends to be BOB bottom end, crank, rods and pistons fitted with BOA heads and timing chest parts. Use BOB camshafts. Or just keep it simple and buy a BOA. With BOB cams and an aftermarket plenum you'll see 250 hp/ish.
I think a few conversions were done a while ago including a 4.0 v6 I've only seen one that still on the road and in our group that magpies. I have a running Duratec but all other conversions are afaik works in progress ? There was one that Dulfords did on Jenvey ITBs but it was never finished and is now off the road afaik. They never seem to get the tacho and speedo sorted you should get clocks off to speedy now for Jan delivery (I sh!t you not!!)
Re manifolds usually folks go for custom tube items in line with s originals I honestly don't know if you have space to do a conventional run with this engine but boosteds cast items may be installable backwards ?
On the Duratec I have custom headers running past my super compact gearbox (£450) just there.
Time for a roll call
Damian
Re manifolds usually folks go for custom tube items in line with s originals I honestly don't know if you have space to do a conventional run with this engine but boosteds cast items may be installable backwards ?
On the Duratec I have custom headers running past my super compact gearbox (£450) just there.
Time for a roll call
Damian
Hi Damian,
I've never tried them fitted backwards. I don't think it would work due to lack of space. With my castings the down pipe exits downwards, next to the front exhaust port. The owner welds his existing pipes onto the mild steel down pipe. None of it's easy and it's a bit of a shame the factory manifolds can't be used.
I've never tried them fitted backwards. I don't think it would work due to lack of space. With my castings the down pipe exits downwards, next to the front exhaust port. The owner welds his existing pipes onto the mild steel down pipe. None of it's easy and it's a bit of a shame the factory manifolds can't be used.
Boosted LS1 said:
Alpha,
The BOA's are the most popular and the easiest to fit from an ecu perspective. Emeralds are popular. The BOB's have a slightly more complicated intake system that most people don't like.
Best build tends to be BOB bottom end, crank, rods and pistons fitted with BOA heads and timing chest parts. Use BOB camshafts. Or just keep it simple and buy a BOA. With BOB cams and an aftermarket plenum you'll see 250 hp/ish.
Would It be possible to run a bob on a boa ecu? I've read somewhere you can then use an msd rev switch to trigger the variable inlet. I'd be happy enough with 210hp as a start. The BOA's are the most popular and the easiest to fit from an ecu perspective. Emeralds are popular. The BOB's have a slightly more complicated intake system that most people don't like.
Best build tends to be BOB bottom end, crank, rods and pistons fitted with BOA heads and timing chest parts. Use BOB camshafts. Or just keep it simple and buy a BOA. With BOB cams and an aftermarket plenum you'll see 250 hp/ish.
Hello
I am pretty sure the BoB didn't have variable inlet. I believe with minor work a boa ecu can run the bob but these are still pretty rare with a good loom.
The issue is with the bob ecu and not engine the bob ecu needs the barrel and coded key to work the boa is stand alone.
The bob inlet may be superior (don't know) but it doesn't say cosworth on it lols.
Boosted does some sweet custom plenum for added er boost
Damian S3
I am pretty sure the BoB didn't have variable inlet. I believe with minor work a boa ecu can run the bob but these are still pretty rare with a good loom.
The issue is with the bob ecu and not engine the bob ecu needs the barrel and coded key to work the boa is stand alone.
The bob inlet may be superior (don't know) but it doesn't say cosworth on it lols.
Boosted does some sweet custom plenum for added er boost
Damian S3
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