985cc Turbocharged Nova Sprint Car

[Connor]

Ahhh i loooove dimma r5's. Were one of my favourite cars back in t'day

[pie]

my old one

[ryansnova]

thats fooking cool

[zeifer33]

How much power?

[Cle]

How huge a price tag, out of idle curiosity?

There's been one advertised for a long while at a shade over £30k.

bang on £30k

[rbsmontemor]

Colin, I think I can help you with the brazillian parts (coz I'm here in Brazil)

I don't know if you sourced everything you need, but here we go with some info:

Today the 1.0L sohc used here on Corsa B, Corsa C, etc have 79HP when burning ethanol, and little less (around 75HP) with gas. They are around 12.4:1 CR

The 1.4L version has 105HP on ethanol, 12.4 CR and survives our crappy gas heheh. Very very well programmed ECU and a lot of these little helpful detonation sensors

The hardpoints (is ok? I'm talking about the engine mounting points) are the same. We had here the same Corsa B GSI you had there (it was imported to Brazil) and the engine block still the same till today.

The head is different since 2005. Smaller hydraulic lifters, rollers on the carriers (I don't know if its right, its the part that is in contact with the camshaft) and sodium exaust valves.

Well, sorry about my English..it's rubbish I know.

Montemor.

Ah, some pics:

1.0 16v:

1.016.v por gm FAMILIA 1, no Flickr


1.0 16v por gm FAMILIA 1, no Flickr





1.4 8v 105HP head

camara do cabeçote 1.4 por gm FAMILIA 1, no Flickr


cabeçote motor econoflex 1.4 por gm FAMILIA 1, no Flickr


Cabeçote do Econo.Flex por blackyo, no Flickr



1.0L block with 1.8L gasket

bloco 1.0 com junta do motor 1.8 por gm FAMILIA 1, no Flickr

1.0L 8v 79HP

pistão 1.0 flex por gm FAMILIA 1, no Flickr

[novarally]

Colin, I think I can help you with the brazillian parts (coz I'm here in Brazil)

I don't know if you sourced everything you need, but here we go with some info:

Today the 1.0L sohc used here on Corsa B, Corsa C, etc have 79HP when burning ethanol, and little less (around 75HP) with gas. They are around 12.4:1 CR

The 1.4L version has 105HP on ethanol, 12.4 CR and survives our crappy gas heheh. Very very well programmed ECU and a lot of these little helpful detonation sensors

The hardpoints (is ok? I'm talking about the engine mounting points) are the same. We had here the same Corsa B GSI you had there (it was imported to Brazil) and the engine block still the same till today.

The head is different since 2005. Smaller hydraulic lifters, rollers on the carriers (I don't know if its right, its the part that is in contact with the camshaft) and sodium exaust valves.

Well, sorry about my English..it's rubbish I know.

Montemor.

Hi Montemor, and thank you so much for your information. Do not worry, your English is excellent.

I'd been struggling to find someone in Brazil with technical knowledge, and who could speak English, I'm pleased you've stepped forward for the job!

There are lots of questions I have for now;

1. Can you confirm if the 1.0 block has the casting for the PAS (power steering) pump, the same as the Corsa B GSi would have had?

2. I'm unsure about the power/torque differences between the 1.0 8v and 1.0 16v engines, can you confirm?

3. As this will be the basis of a turbocharged racing engine, the 2005-on head with sodium filled exhaust valves sounds interesting! Was that 2005 change done to both the 8v and 16v heads?

4. Do you have any experience of turbocharging these engines? Or know anybody who has done this?

5. Are these engines easily available as secondhand units in Brazil? And what sort of prices do they sell for?

That's all for now, but I'm sure to think of more questions for you soon!

Thanks again for your help.

Colin

[rbsmontemor]

Hi Montemor, and thank you so much for your information. Do not worry, your English is excellent.

I'd been struggling to find someone in Brazil with technical knowledge, and who could speak English, I'm pleased you've stepped forward for the job!

There are lots of questions I have for now;

1. Can you confirm if the 1.0 block has the casting for the PAS (power steering) pump, the same as the Corsa B GSi would have had?

2. I'm unsure about the power/torque differences between the 1.0 8v and 1.0 16v engines, can you confirm?

3. As this will be the basis of a turbocharged racing engine, the 2005-on head with sodium filled exhaust valves sounds interesting! Was that 2005 change done to both the 8v and 16v heads?

4. Do you have any experience of turbocharging these engines? Or know anybody who has done this?

5. Are these engines easily available as secondhand units in Brazil? And what sort of prices do they sell for?

That's all for now, but I'm sure to think of more questions for you soon!

Thanks again for your help.

Colin

1. Take a look if this is what you talking about:





It's the "triangle" with these 3 threaded holes?


2. This 1.0 16v engine is old here in Brazil, it was made around 1997 and had 68HP, only gas, low compression engine.
The actual 1.0 8v engine is a "VHC" engine (Very high compression), with plastic intake manifold (better contruction form, better flow etc..) and has 79HP with ethanol.

Thats the gaph for 1997 gas engines, 1.0 8v and 1.0 16v



And thats the 79HP engine without cat:







3. Since around 2000 the only car that came with these Smallblock 16v is the Meriva. And only 1.8L. This 1.8L engine is the same you had there.

Today all smallblock engines are sohc "VHC" engines.






4. I own a Corsa C 1.4L VHC (EconoFlex) with 105HP. It was turbo some time ago but as a student at night and working at day I have no time to mess around with it.

79HP 1.0L with a K14 turbo @ 0.8 bar produces around 140HP, stock internals, plastic intake manifold
My car (1.4L) with a K16 @ 1.0 bar results in 223 HP, stock internals, plastic intake manifold

There are a lot of these turbo'ed engines here.

1.0L 79HP stock internals


1.0L old head (same as yours) 245HP, crappy ECU




And my car:






5. There are a lot of these engines here. Used, new...I think the problem is to find a way to send them to you. We have some rigid laws about selling automotive parts to other contries.


My 2c:

I would keep the 1.2L crank. Our 1.0L engines has no torque at all and I think you gonna lost driveability with 1.0L crank
I think you could use your bottom and the brazillian 1.4L head, as it has a lot more potential for power. I don't have pictures but I can tell you, the newer head ducts are a lot larger than the old head.
The only problem is that this new head uses a different camshaft, because the multiplying factor is different on these heads.

Feel free to ask anything else

Montemor.

[Southie]

At last Colin you've the Brazilian contact you needed, best of luck in sorting your new build looks like it's about to become a lot easier

[mk1nova_rich]

Wow, thats a miracle I've given him some well earned rep for the above posts