Type R caged track machine
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From: "Engineering Perfection in Essex"
Rome wasnt built in a day boys... 
For a start, Im sure Clive doesnt Autosol every bolt head in a battery drill before fitting it.
I know, i have issues, ill get my coat.

For a start, Im sure Clive doesnt Autosol every bolt head in a battery drill before fitting it.
I know, i have issues, ill get my coat.

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From: 1/4 mile PB 8.89 @ 160
Long time since I updated this thread so this is where we are now, last month the car ran in the 30-130 event at RAF Marham and we suffered an engine failure. Looks like the car suffered major det and one piston said no more ! We removed the engine recently and found the damge in the pics below.


So what next ? Well Alyn at AS Performance has developed a new CDB using inserts in a standard block as you will see in the pic. So we are going for a 2.5 engine, I had a 79mm spare crank already and John Stevenson has suplied a used set of Lateral Performance pistons and rods. Alyn will assemble the engine for me with another set of STI 3 heads that I also had spare.

I will make a few other minor changes, I will fit a reversed version 1/2 inlet which Matty at Pole Position had powdercoated for me and a set of parellel fuel rail, Alyn will supply a new FPR and pipework.


Not sure when the engine will be ready as yet but I will keep the thread updated.


So what next ? Well Alyn at AS Performance has developed a new CDB using inserts in a standard block as you will see in the pic. So we are going for a 2.5 engine, I had a 79mm spare crank already and John Stevenson has suplied a used set of Lateral Performance pistons and rods. Alyn will assemble the engine for me with another set of STI 3 heads that I also had spare.

I will make a few other minor changes, I will fit a reversed version 1/2 inlet which Matty at Pole Position had powdercoated for me and a set of parellel fuel rail, Alyn will supply a new FPR and pipework.


Not sure when the engine will be ready as yet but I will keep the thread updated.
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From: 1/4 mile PB 8.89 @ 160
Yes the cdb I had was already on 93mm bores so would now need to be sleeved. Also like the idea of the S215 on a 2.5. Will be nice to prove Alyns design too.
Anyone have any idea what that 2.5 block, with the revised strengthening insert, is good for power/torque-wise, when mated to STi 5 heads? And running what sort of relative boost (from a daily-driver/fast road use viewpoint)?
Last edited by joz8968; Apr 13, 2012 at 10:04 PM.
Is c.500/500 managable on STi 5 heads?
And what's the best (liveliest) turbo choice: SC54 Billet or GT30 Billet? Or other? (I'd only be interested in single scroll stock location turbos).
Or do SC also do a SC50 Billet? - can't remember.
And what's the best (liveliest) turbo choice: SC54 Billet or GT30 Billet? Or other? (I'd only be interested in single scroll stock location turbos).
Or do SC also do a SC50 Billet? - can't remember.
Last edited by joz8968; Apr 13, 2012 at 10:12 PM.
Check out Bob Rawles thread with this sort of CDB insert and LM500 turbo, cosworth heads and mild trick cams.
Roadable and runnning over 550 each on around 1.6 bar.
Guess yours would be similar or more so as a main drag car Clive?
Why the change in the insert design - better around the waterways?
Roadable and runnning over 550 each on around 1.6 bar.
Guess yours would be similar or more so as a main drag car Clive?
Why the change in the insert design - better around the waterways?
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From: 1/4 mile PB 8.89 @ 160
S215 is a very capable turbo for circa 500
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From: 1/4 mile PB 8.89 @ 160
Check out Bob Rawles thread with this sort of CDB insert and LM500 turbo, cosworth heads and mild trick cams.
Roadable and runnning over 550 each on around 1.6 bar.
Guess yours would be similar or more so as a main drag car Clive?
Why the change in the insert design - better around the waterways?
Roadable and runnning over 550 each on around 1.6 bar.
Guess yours would be similar or more so as a main drag car Clive?
Why the change in the insert design - better around the waterways?
So STi 5 heads flow as good as/nearly as good as v.3 ones?
Isn't the S215's outlet in a 'mirrored' position to OEM? And doesn't it need it's own bespoke d/p elbow welded to a cut and shut OEM d/p? Or was that for the S206 only?
Isn't the S215's outlet in a 'mirrored' position to OEM? And doesn't it need it's own bespoke d/p elbow welded to a cut and shut OEM d/p? Or was that for the S206 only?
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From: Enginetuner Plymouth for 4wd RR Mapping Apexi Ecutek Alcatek Proper Garage More than just a laptop!
To be fair, we've said all this before, but sometimes in life to get the best, you may have to put in a bit of effort
Check out Bob Rawles thread with this sort of CDB insert and LM500 turbo, cosworth heads and mild trick cams.
Roadable and runnning over 550 each on around 1.6 bar.
Guess yours would be similar or more so as a main drag car Clive?
Why the change in the insert design - better around the waterways?
Roadable and runnning over 550 each on around 1.6 bar.
Guess yours would be similar or more so as a main drag car Clive?
Why the change in the insert design - better around the waterways?
a number of reasons, the water way shape/design is incidental as we will/can do what ever a customer requires in this area - the main change between the 2x designs is more of an engineering thought..............
the original style was effectively 2x number "3" shaped inserts with one mirrored against the other, the newer design we have fully machined the top of the block to accept an almost complete "8" shaped insert which is not only better supported once pressed home but also offers slightly more integrity overall
alyn









