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John W
vauxsport.com
Joined: 04 Jun 2007
Posts: 215
Location: Lincoln
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 Posted: Thu Mar 04, 2010 12:25 pm Post subject: |
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That's an awesome result, as you say just show's that decent power can be made without spending a fortune.
Wonder if I can convince our gaffer to let me have a similar van for work purposes, deliveries would get done alot quicker 
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sbd16v
vauxsport.com
Joined: 10 Nov 2006
Posts: 2075
1990 Vauxhall Astra
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| Posted: Thu Mar 04, 2010 9:51 pm Post subject: |
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this has made me think about turboing the convertible
but a quick question, how much of a c20let do i need to use to achive the same results ???
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alistairolsen
Token Scot
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Joined: 07 Nov 2006
Posts: 2877
1998 Vauxhall Corsa
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| Posted: Fri Mar 05, 2010 9:52 am Post subject: |
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| turbo and manifold, some form of top hat, thicker gasket, loom, management, downpipe, injectors, ....... |
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chip
Vaux TOTB Mgr
Joined: 11 Oct 2006
Posts: 17513
Location: Somerset
1990 Vauxhall Nova
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| Posted: Fri Mar 05, 2010 10:48 am Post subject: |
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| alistairolsen wrote: | | turbo and manifold, some form of top hat, thicker gasket, loom, management, downpipe, injectors, ....... |
So basically, an entire LET except for the pistons, which instead of using you use a thicker gasket, which costs the same as a secondhand set of LET pistons anyway, which I must admit is the way I would have gone if doing the same thing as then you could run more midrange boost.
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Under 400bhp makes baby jesus cry.
(so my boost leak at the jamsport day must have had him sobbing like rich j williams watching a chick flick)
www.totalvauxhall.co.uk
Nova - 457bhp - Mid Engine - RWD - GT35 - Autronic SM4 |
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alistairolsen
Token Scot
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Joined: 07 Nov 2006
Posts: 2877
1998 Vauxhall Corsa
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| Posted: Fri Mar 05, 2010 11:46 am Post subject: |
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| indeed, but as rob has the engine in the car and it probably looking to be a bit pikey and avoid removing the bottom end or fitting an F28 using a thick gasket and only making power high up probably isnt a bad way to go. For the price of a good let loom and ecu and chips though Id be going for mtec or similar and running a proper boost curve. |
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sbd16v
vauxsport.com
Joined: 10 Nov 2006
Posts: 2075
1990 Vauxhall Astra
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| Posted: Fri Mar 05, 2010 2:01 pm Post subject: |
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i would fit a f28, i was just wondering how much of the let gav used on his non let xe turbo lol
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chip
Vaux TOTB Mgr
Joined: 11 Oct 2006
Posts: 17513
Location: Somerset
1990 Vauxhall Nova
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| Posted: Fri Mar 05, 2010 5:32 pm Post subject: |
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| sbd16v wrote: | | i would fit a f28, i was just wondering how much of the let gav used on his non let xe turbo lol |
The only parts he used that were either LET parts or identical to let parts seem to be:
Pistons
Cams
Head gasket
Everything else is just exactly the same spec as a normal LET, which is why its a bit confusing that so many people on MIG were surprised that an engine which is almost the same as normal LET made almost the same power as a normal LET 
Its really not exactly a big revelation!
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Under 400bhp makes baby jesus cry.
(so my boost leak at the jamsport day must have had him sobbing like rich j williams watching a chick flick)
www.totalvauxhall.co.uk
Nova - 457bhp - Mid Engine - RWD - GT35 - Autronic SM4 |
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Turbo Gav
vauxsport.com
Joined: 11 Nov 2007
Posts: 1623
Location: Huntingdon/St ives
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| Posted: Fri Mar 05, 2010 10:19 pm Post subject: |
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Jesus.... Its not that clever but It did make more then I expected TBH.
Pistons would be the better choice as its still knock limited to 10psi even on 99ron fuel running rich. I had the headgasket and didnt have any pistons so it was cheaper and less hassle that way. FREE 
To get the timing as on the edge as the closed loop control on Motronic does would be a task for most people on management as it really does pull alot away (not that it would be this high to start with with aftermarket) and put alot back at high rpm as you would expect and does it very well everytime. Its a trade off between boost and timing even with aftermarket. You would not belive the amount of PM's on MIG with people now doing the same 
Wish I had some rollers to play with cam timing 
Going to sell it now as I have better ideas 
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fennyLET
vauxsport.com
Joined: 13 Sep 2007
Posts: 3557
Location: Kings Lynn (Norfolk)
1994 Vauxhall Astra
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| Posted: Fri Mar 05, 2010 10:36 pm Post subject: |
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| Turbo Gav wrote: |
Going to sell it now as I have better ideas |
Like finnish the Corsa maybe 
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Quote from PV "Your car could win....... if it rains"
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Rich_j_Williams
vauxsport.com
Joined: 16 Nov 2006
Posts: 3321
Location: Coventry
1996 Vauxhall Corsa
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| Posted: Sat Mar 06, 2010 10:19 am Post subject: |
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Shame your selling up Mate this is a cracking little project but if it is to finish the corsa then fair enough
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Project Corsa Trackcar |
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chip
Vaux TOTB Mgr
Joined: 11 Oct 2006
Posts: 17513
Location: Somerset
1990 Vauxhall Nova
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| Posted: Sat Mar 06, 2010 12:12 pm Post subject: |
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| Turbo Gav wrote: | You would not belive the amount of PM's on MIG with people now doing the same
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LMAO
Unless they happen to have exactly the same random parts lieing around as you, such as a complete let minus pistons and with a thick headgasket they really are wasting their time and would be so much better off just using a secondhand set of LET pistsons, especially given that they are likely to need to have the engine right out to drill the oil return, but thats MIG for you I guess, lots of people with no imagination of their own so they have to copy anything that seems to work, even if they dont realise the only reason for using those parts was purely they were lieing around, lol
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Under 400bhp makes baby jesus cry.
(so my boost leak at the jamsport day must have had him sobbing like rich j williams watching a chick flick)
www.totalvauxhall.co.uk
Nova - 457bhp - Mid Engine - RWD - GT35 - Autronic SM4 |
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fennyLET
vauxsport.com
Joined: 13 Sep 2007
Posts: 3557
Location: Kings Lynn (Norfolk)
1994 Vauxhall Astra
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| Posted: Sat Mar 06, 2010 12:16 pm Post subject: |
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| Rich_j_Williams wrote: |
Shame your selling up Mate this is a cracking little project but if it is to finish the corsa then fair enough |
Going on a comment i spotter on Mig. I think the Corsa will be going aswell
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Quote from PV "Your car could win....... if it rains"
Something along those lines anyway lmao lmao |
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