Silver C70 T5 - Manual - 400BHP

[graemewelch]

Yeah, are you going to Uxbridge?

sure am payed the deposit today

[Wobbly Dave]

Still makes no sense, I see no reason to lower the compression that far: This from Garrett's own web site:


There are numerous factors that affect the maximum allowable compression ratio. There is no single correct answer for every application. Generally, compression ratio should be set as high as feasible without encountering detonation at the maximum load condition. Compression ratio that is too low will result in an engine that is a bit sluggish in off-boost operation. However, if it is too high this can lead to serious knock-related engine problems.

I can only assume that Dave is trying to go for well over 500 bhp

I appreciate what you're saying Col. However I don't have a particular power figure in mind. I trust what Hamish has told me about CR & the need for higher lift cams. Only time will tell if that trust is misplaced. The engine builder runs his own autosport engineering firm, with many years based in competitive engine building.

AFAIK the C70 coupe has a kerbside weight of 1450kg. They aren't heavier than any other Volvo of the same era - if anything they're a bit lighter? Perhaps if I get the time I will get it weighed.

[stribo]

I appreciate what you're saying Col. However I don't have a particular power figure in mind. I trust what Hamish has told me about CR & the need for higher lift cams. Only time will tell if that trust is misplaced. The engine builder runs his own autosport engineering firm, with many years based in competitive engine building.

AFAIK the C70 coupe has a kerbside weight of 1450kg. They aren't heavier than any other Volvo of the same era - if anything they're a bit lighter? Perhaps if I get the time I will get it weighed.

The C70 is definitely heavier than the V70, don't know about the S70.

[T5frankie]

The C70 is definitely heavier than the V70, don't know about the S70.

the s70 is lighter than the v70

[stribo]

the s70 is lighter than the v70

So the sportiest car is also the heaviest lol, but also the stiffest.

[graemewelch]

[QUOTE=Wobbly Dave;679752]I appreciate what you're saying Col. However I don't have a particular power figure in mind. I trust what Hamish has told me about CR & the need for higher lift cams. Only time will tell if that trust is misplaced. The engine builder runs his own autosport engineering firm, with many years based in competitive engine building.


how well this set up is going to work is going to be mostly down to mapping. hope you get it set up how you want it this year as i remember last year didnt go so well as far as the mapping went

[jamesy12345]

I appreciate what you're saying Col. However I don't have a particular power figure in mind. I trust what Hamish has told me about CR & the need for higher lift cams. Only time will tell if that trust is misplaced. The engine builder runs his own autosport engineering firm, with many years based in competitive engine building.

AFAIK the C70 coupe has a kerbside weight of 1450kg. They aren't heavier than any other Volvo of the same era - if anything they're a bit lighter? Perhaps if I get the time I will get it weighed.

My S70 has a kerb weight listed of 1376 kg I think. And the 5 turbo compression ratio is 7:1, that is known for being a bit of an 'on-off' switch as far as power is concerned. But that has a little engine, 1.4 (so the tax is cheap ). Maybe the 2.3 will get away with it.

[claymore]

Thing is, the 5 is old school and doesn't have the sophisticated engine management of a more modern car so it needed low compression.

[LiamT4]

My S70 has a kerb weight listed of 1376 kg I think. And the 5 turbo compression ratio is 7:1, that is known for being a bit of an 'on-off' switch as far as power is concerned. But that has a little engine, 1.4 (so the tax is cheap ). Maybe the 2.3 will get away with it.

The 1376kg is dependent on spec and yours will be over 1400 because of the gearbox and torque converter.

[jamesy12345]

Thing is, the 5 is old school and doesn't have the sophisticated engine management of a more modern car so it needed low compression.

An ancient T3 and mechanical fuel injection for starters!

http://www.5turbo.org/t9309-le-k-jectronic-l-injection

The 1376kg is dependent on spec and yours will be over 1400 because of the gearbox and torque converter.

Could be I was just going off the Parkers site....you wouldn't want it on your foot either way

http://www.parkers.co.uk/cars/review...on-1996/12841/

[Wobbly Dave]

There is a bit to go yet but decent progress has been made today.
Well all the engineer shananigans is complete. A lot of work has gone into this engine - but as with all these things most of it is hidden away now. I went to the engineers in Bromsgrove today to help with the timing of the engine (new VVT sprocket). It is a little tricky setting up the VVT cam from scratch. It is difficult to remember how it came apart after 6 months but we got there. I dashed over to HLM to have a peak at VIDA, made a bit more complex finding out that HLM's copy was offline (PC is broken).

Anyway here are some pics now the engine is timed up - shame you can't see half the trick stuff inside.



bizarrely things like the idiot sensor switch, the outer cambelt cover, cam position sensor and a few other bits have done a runner.

I have a few gaskets to get hold off. I also need somewhere I can get a tapped drain plug from suitable for the blitz oil temp sensor - [19210] Temp Sensor set - I have bought. Need a few Euros in my account before I can buy the adaptor from Euro tuning for the [19211] Oil Pressure Sensor

I've purchased the blitz sensors because they integrate into the single display for the blitz I-color - so I don't end up with loads of different gauges. When funds allow I also intend on getting their AFR wideband sensor package.

BTW my engine has been measured and it now has 2320cc. Bore is 81.5, stroke is 89.00 and CR of 7.93.

If anyone would like to help get this engine back from Bromsgrove and help me recover it home - it'd be appreciated as I have limited space in the S40.

[MoleT-5R]

looking nice dave, does it feel like your getting somewhere now mate ?

[Wobbly Dave]

Yes - all the engineering is finished. I need to bolt all the bits back together, add the new sensors, add the Blitz SBC. Need GWE to fab up my new cat back.

[partsforvolvos.com]

good news dave, keep on it mate

[alcashj94]

How about a simple tee piece for the oil pressure sensor take off - don't cost a lot!

http://www.ebay.co.uk/itm/Oil-Pressu...6#ht_397wt_952

[stribo]

Looking good, I'm guessing that's a S60R exhaust manifold.Are they more efficient than the Jap ME7 manifolds, as the R is 3-1-1, whereas the Jap is 2-2-1.

[Wobbly Dave]

You'd be guessing correctly then.

I looked at many alternatives including having one fabricated up. In the end this particular manifold was flattened to mate properly with the GTX's T3 housing which is not recessed like the TD04 is.

I have no stats on the relative flow rates for either.

[graemewelch]

There is a bit to go yet but decent progress has been made today.
Well all the engineer shananigans is complete. A lot of work has gone into this engine - but as with all these things most of it is hidden away now. I went to the engineers in Bromsgrove today to help with the timing of the engine (new VVT sprocket). It is a little tricky setting up the VVT cam from scratch. It is difficult to remember how it came apart after 6 months but we got there. I dashed over to HLM to have a peak at VIDA, made a bit more complex finding out that HLM's copy was offline (PC is broken).

Anyway here are some pics now the engine is timed up - shame you can't see half the trick stuff inside.



bizarrely things like the idiot sensor switch, the outer cambelt cover, cam position sensor and a few other bits have done a runner.

I have a few gaskets to get hold off. I also need somewhere I can get a tapped drain plug from suitable for the blitz oil temp sensor - [19210] Temp Sensor set - I have bought. Need a few Euros in my account before I can buy the adaptor from Euro tuning for the [19211] Oil Pressure Sensor

I've purchased the blitz sensors because they integrate into the single display for the blitz I-color - so I don't end up with loads of different gauges. When funds allow I also intend on getting their AFR wideband sensor package.

BTW my engine has been measured and it now has 2320cc. Bore is 81.5, stroke is 89.00 and CR of 7.93.

If anyone would like to help get this engine back from Bromsgrove and help me recover it home - it'd be appreciated as I have limited space in the S40.

looking good dave. do you need bosses for the sump or drill and tap them just i could do either for you. ive got various bspt taps and a few npt taps adn a lathe to make bosses and a ac welder

Yes - all the engineering is finished. I need to bolt all the bits back together, add the new sensors, add the Blitz SBC. Need GWE to fab up my new cat back.

funny you should mention that ive got a pile of bits here. just waiting on a phone call for the last parts from the laster profilers. then i can crack on.

[Wobbly Dave]

That's good news G. I will be looking for volunteers soon to help me get this engine & gearbox back in.

[graemewelch]

That's good news G. I will be looking for volunteers soon to help me get this engine & gearbox back in.

ill come down and help you. be a day out for me. you any idea when your planning on fitting it. im going on holiday for week on the 27th jan.