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 6745 Posts Member #: 828 Post Whore uranus |
8th Sep, 2016 at 05:43:10am
hi graham , in total how will this differ from your present engine,and what sort of power will it have ?i am guessing more capacity and a higher max revs ? what cam ,and what head spec ? :)
Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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 4890 Posts Member #: 1775 Post Whore Chester |
8th Sep, 2016 at 06:49:54am
On 8th Sep, 2016 robert said:
hi graham , in total how will this differ from your present engine,and what sort of power will it have ?i am guessing more capacity and a higher max revs ? what cam ,and what head spec ? :) Hi Robert, well I understand this is an expensive way to get a similar amount of power to the current spec, but then I think the current 1060 over performed when we had it at the Dyno, it exceeded my expectations. However I have wanted a square engine, since I was 17, and I guess sometimes life is too short not to do these things. I'm trying to build to a reasonable budget..... Off of the top of my head it will be a little over 1100cc 1275 bore +040 6cc dished Pistons 6" rods (Calver didn't seem to like this idea sure to the rod stroke ratio, but did understand why I was doing it) Re13T at 112deg LCA A turbo Phil 5 port head (so my current one with the inlet valve sizes increase 35mm inlet and 29mm ex) I will leave the rest to Phil as the current spec has worked so well. I will leave the box as is with the 3.1 diff just upgrade to hardy spicers I'm going to bolt all of the injection, supercharger and water injection kit back on. Target power is the break the 100bhp at the wheels at 11 psi. Whilst everyone talks about the magic 10k rpm's... I realise that's just a pipe dream, but I'm guessing 8k -8.5k must be do-able? So why do all this? So that when your asked, so mate what under the hood, It's 1071 baby....... I'm trying to build for a reasonable budget, swinging some spanners myself. So far: Re-ground, and checked crank £200 6" rods £250 Pistons £270+ £72 for the clip job Block bored to +040 £50 ACL Mains, big ends, thrusts and gaskets, £100 Centre main strap and dowls from swiftune circa £50 posted Conversion kit from auto to manual including shipping from Aus and the new spool £50 Mpi spare steel backed oil pump £35 I still need to get the dip stick hole drilled, and one of the 11 stud holes seems to be a bit wonky so I will need to get the machine shop to helicoil it And I was going to burn another £90 on a cometic gasket as the one on the 1060 has been bomb proof. Plus the head will need new inlet valves and some work from the world famous Turbo Phil... So it's not change you can find down the back of the sofa, but it's not going to be the most expensive build in the world. Must be mad to spend all that cash for 40cc 😀🤑🤔 Edited by gr4h4m on 8th Sep, 2016. I run a supercharger and I don't care the TB is on the wrong side.
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4890 Posts Member #: 1775 Post Whore Chester |
8th Sep, 2016 at 06:50:40am
You could be right Dave.
On 7th Sep, 2016 D4VE said:
Aint damico who do SC's work too? I run a supercharger and I don't care the TB is on the wrong side.
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 243 Posts Member #: 1261 Senior Member Droitwich |
8th Sep, 2016 at 10:21:19am
I think if ur supercharging it your going to end up with something very unique and id say worth the hassle. It'll be so smooth, so nice to drive with such a huge power band. |
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 11046 Posts Member #: 965 Post Whore Preston On The Brook |
8th Sep, 2016 at 11:34:37am
What's the rod/stroke ratio on formula1 engine? On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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 12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
8th Sep, 2016 at 11:53:03am
well thats interesting, because I remember a Calver article from several years back where he was banging on about having a SA 1071 crank and 6" rods in his road car and how fucking fantastic it was...
On 8th Sep, 2016 gr4h4m said:
Hi R 6" rods (Calver didn't seem to like this idea sure to the rod stroke ratio, but did understand why I was doing it) On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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4890 Posts Member #: 1775 Post Whore Chester |
8th Sep, 2016 at 04:05:33pm
To be fair, he's been great with me, I have seen a calver engine one of the lads has got one in a local club and it was a work of art.
I run a supercharger and I don't care the TB is on the wrong side.
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6745 Posts Member #: 828 Post Whore uranus |
9th Sep, 2016 at 07:38:14am
thanks graham ,good explanation .maybe a different cam for the different rev range ? Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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4890 Posts Member #: 1775 Post Whore Chester |
9th Sep, 2016 at 08:20:12am
What would you recommend? I have been looking but it's hard to find something that has a wide Lca. The boys down under recon it will Rev in a small bore I run a supercharger and I don't care the TB is on the wrong side.
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12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
9th Sep, 2016 at 11:00:09am
Robert will have better input on this, but you might be better of without the wide LCA in this case, the wide LCA will tend to bring the peak power down, a 266 might be better, and also a bigish turbo for the CC, perhaps a 2056. On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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4890 Posts Member #: 1775 Post Whore Chester |
9th Sep, 2016 at 11:02:58am
Joe I'm using an evil suck through supercharger, it didn't work too well with a 266. The re13t on the wide LCA was a big improvement. I run a supercharger and I don't care the TB is on the wrong side.
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12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
9th Sep, 2016 at 11:16:40am
sorry, Of course you are! I knew that honest!
On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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 4625 Posts Member #: 20 My sister is so fit I won't show anyone her picture Lake District |
9th Sep, 2016 at 11:58:54am
We'll have to consider some new valve springs to, if you're going 8k+
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4890 Posts Member #: 1775 Post Whore Chester |
9th Sep, 2016 at 12:15:18pm
Agreed Phil, I can't remeber what's in the head now tbh.
I run a supercharger and I don't care the TB is on the wrong side.
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12307 Posts Member #: 565 Carlos Fandango Burnham-on-Crouch, Essex |
9th Sep, 2016 at 12:30:47pm
yeah it can do, essentially it just makes a cam a bit more agressive,
On 28th Aug, 2011 Kean said:
At the risk of being sigged... Joe, do you have a photo of your tool? http://www.turbominis.co.uk/forums/index.p...9064&lastpost=1 https://joe1977.imgbb.com/ |
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4314 Posts Member #: 700 Formerly British Open Classic The West Country |
9th Sep, 2016 at 08:05:43pm
On 8th Sep, 2016 Sprocket said:
What's the rod/stroke ratio on formula1 engine? Dam you Colin, I've spent the last hour reading articles on F1 rod/stroke ratios (I was surprised how much Google through up) and now my brain hurts, a lot, but I've come to the conclusion that the rod/stroke ratio on F1 engines is choosen to reduce the tensile stress on the rods which is driven by the choose of rod material, or I might have cooked my brain and got it all muddled up. Isambard Kingdom Brunel said:
Nothing is impossible if you are an Engineer |
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6745 Posts Member #: 828 Post Whore uranus |
9th Sep, 2016 at 08:19:51pm
where was pk power on the dyno graham ? Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM |
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4890 Posts Member #: 1775 Post Whore Chester |
9th Sep, 2016 at 08:34:01pm
Looking at the picture of the graph it was zoomed in and out of scale. The limiter was at 7300 in the ecu and the graph was still on the uptake that rpm, but the line was starting to dip off, peak torque was at about 6500 ish where it was at 90 BHP ATW at 7300 it was at 96 BHP ATW I run a supercharger and I don't care the TB is on the wrong side.
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4890 Posts Member #: 1775 Post Whore Chester |
9th Sep, 2016 at 09:29:36pm
This was one of the many threads I was reading that led me into the wider LCA used on the v8's. I then found out that you could get the RE13T in a wide LCA.
I run a supercharger and I don't care the TB is on the wrong side.
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11046 Posts Member #: 965 Post Whore Preston On The Brook |
9th Sep, 2016 at 11:14:52pm
On 9th Sep, 2016 Rob H said:
On 8th Sep, 2016 Sprocket said:
What's the rod/stroke ratio on formula1 engine? Dam you Colin, I've spent the last hour reading articles on F1 rod/stroke ratios (I was surprised how much Google through up) and now my brain hurts, a lot, but I've come to the conclusion that the rod/stroke ratio on F1 engines is choosen to reduce the tensile stress on the rods which is driven by the choose of rod material, or I might have cooked my brain and got it all muddled up. 
Its got a lot to do with the dwell at TDC and BDC too. While mid stroke piston speeds might increase, the piston speeds are reduced nearer the top and bottom of the stroke, meaning there is more time on the dwell periods, which helps in the higher rpms, but not as good in the lower rpms. I really dont think the 6" rod on a 1070 crank would be any worse than the 5.875" rod on the 970 crank, infact its better if you're that hung about it. Thing is, the 970 S was apparently the mutts nuts so couldnt have been all that detrimental?...... On 26th Oct, 2004 TurboDave16v said:
Is it A-Series only? I think it should be... So when some joey comes on here about how his 16v turbo vauxhall is great compared to ours, he can be given the 'bird'... On 26th Oct, 2004 Tom Fenton said:
Yep I agree with TD........ |
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4890 Posts Member #: 1775 Post Whore Chester |
10th Sep, 2016 at 03:08:16pm
So I might have the start position of joining the secret cam brigade... Thanks to Robert....
I run a supercharger and I don't care the TB is on the wrong side.
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4890 Posts Member #: 1775 Post Whore Chester |
12th Sep, 2016 at 02:34:04pm
Update, Pistons arrived Friday last week, should be back to me by Wednesday.. Pics when they arrive... I run a supercharger and I don't care the TB is on the wrong side.
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4890 Posts Member #: 1775 Post Whore Chester |
5th Jan, 2017 at 07:20:40pm
so..... after a load of messing about I have collected the block from the original machinist who after three months hadn't touched it.
I run a supercharger and I don't care the TB is on the wrong side.
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 7763 Posts Member #: 74 I pick holes in everything.. Chief ancient post excavator |
5th Jan, 2017 at 10:52:30pm
A main strap would be pointless on this.
On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem. |
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4890 Posts Member #: 1775 Post Whore Chester |
6th Jan, 2017 at 11:21:23pm
V why do you say that? I run a supercharger and I don't care the TB is on the wrong side.
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