Discussion
If you don't have a blower already get one of the new 6th gen TVS blowers (MP1900 or 2300) as they move more air than any other previous generation. However, as Richard says pressure is not the indication of power, it's the movement of gasses through the engine. Get some heads, cam, and headers and you will see the power. The blower just need to feed in enough air.
Don't bother with the 112 unless you are sure you don't want to upgrade as it's better to have a big blower with loads of spare capacity you can use later on.
Don't bother with the 112 unless you are sure you don't want to upgrade as it's better to have a big blower with loads of spare capacity you can use later on.
Edited by anonymous-user on Sunday 13th July 18:47
My gains from the 112 were 20% power (from 320 to 384hp) and 10% more torque (from 345 to 385lb) all figures at the wheels. Thing is, the extra power seems to be made right at the top of the rev range, not surprising with FI I guess, up to about 4200 rpm the power and torque is pretty much the same as before.
I'll move to the 122 if Walkinshaw can sort something out for me, probably want the biggest kit they do! I'd love to do cam and heads but should be pushing the limits on the gearbox with the 122 blower.
I'll move to the 122 if Walkinshaw can sort something out for me, probably want the biggest kit they do! I'd love to do cam and heads but should be pushing the limits on the gearbox with the 122 blower.
Mystvxr said:
My gains from the 112 were 20% power (from 320 to 384hp) and 10% more torque (from 345 to 385lb) all figures at the wheels. Thing is, the extra power seems to be made right at the top of the rev range, not surprising with FI I guess, up to about 4200 rpm the power and torque is pretty much the same as before.
I'll move to the 122 if Walkinshaw can sort something out for me, probably want the biggest kit they do! I'd love to do cam and heads but should be pushing the limits on the gearbox with the 122 blower.
Interesting...I'll move to the 122 if Walkinshaw can sort something out for me, probably want the biggest kit they do! I'd love to do cam and heads but should be pushing the limits on the gearbox with the 122 blower.
Not as much as I would have thought TBH?
Roger did my install last time. I just gave him the bits.
As for your trans, the more power you pump in, the more likely it is to bust
No definately there. Guys have had bad boxes with stock setups.
Depends on your power requirements and budget. Like Gelf suggests an L92 setup and intake will bolt on. Throw in a mild cam and you should have a nice setup. Mind you most of the cost is in labour, so I always like to get the best parts within reason. Therefore you could look at some WCCH CNC L92 heads and ask them about intake porting too. Make sure you can get loads of airflow, because airflow = power.
Alternately, ETP, TFS, Dart, AFR heads are all good for the cathedral setup. If you are going blower with the L92's you will want a different model as it will need to mate up to the heads. BUT the nice thing is that its the same as the SS Commodore and now the new G8 Pontiac so there should be plenty of options, like the Maggie.
if you are going to supercharge and want to keep costs down the 225cc Dart heads will bolt to your current intake manifold. Pop a 224/228 or 220/224 cam in and things will get very interesting with the supercharger. Heads and cam should be 400rwhp by themselves! Then supercharge later and no loss of parts you have already bought.
As for your trans, the more power you pump in, the more likely it is to bust
No definately there. Guys have had bad boxes with stock setups.Depends on your power requirements and budget. Like Gelf suggests an L92 setup and intake will bolt on. Throw in a mild cam and you should have a nice setup. Mind you most of the cost is in labour, so I always like to get the best parts within reason. Therefore you could look at some WCCH CNC L92 heads and ask them about intake porting too. Make sure you can get loads of airflow, because airflow = power.
Alternately, ETP, TFS, Dart, AFR heads are all good for the cathedral setup. If you are going blower with the L92's you will want a different model as it will need to mate up to the heads. BUT the nice thing is that its the same as the SS Commodore and now the new G8 Pontiac so there should be plenty of options, like the Maggie.
if you are going to supercharge and want to keep costs down the 225cc Dart heads will bolt to your current intake manifold. Pop a 224/228 or 220/224 cam in and things will get very interesting with the supercharger. Heads and cam should be 400rwhp by themselves! Then supercharge later and no loss of parts you have already bought.
you guys tend to bang on about the same stuff over and over.
Ringram you well know that an engine is a big air-pump...the more air and fuel you put in the more hp it will make. BUT you do not have to spend thousands on heads, big cams, after-market manifolds 90mm throttle bodies etc...etc. If your going to invest in an FI set-up let it make the HP, spend the money on the bottom end and pump up the PSI!
Listen to someone who has spent the money, made the mistakes and learnt from them. I've a modest set up as far as the engine spec goes; stock heads (just with a set of crane rollers & springs), stock manifold & throttle body, stock HSV GTS camshaft (GTS 300kw), stock crank, lunati rods, JE pistons. That's it! I'm making 588rwhp @ 10 psi with my pair of hair dryers. That's through the A4 and 4000 stall mind you.
As I said spend the money to make it last and let the blower make the HP for you.
Big NA horsies are a different kettle of fish.
Ringram you well know that an engine is a big air-pump...the more air and fuel you put in the more hp it will make. BUT you do not have to spend thousands on heads, big cams, after-market manifolds 90mm throttle bodies etc...etc. If your going to invest in an FI set-up let it make the HP, spend the money on the bottom end and pump up the PSI!
Listen to someone who has spent the money, made the mistakes and learnt from them. I've a modest set up as far as the engine spec goes; stock heads (just with a set of crane rollers & springs), stock manifold & throttle body, stock HSV GTS camshaft (GTS 300kw), stock crank, lunati rods, JE pistons. That's it! I'm making 588rwhp @ 10 psi with my pair of hair dryers. That's through the A4 and 4000 stall mind you.
As I said spend the money to make it last and let the blower make the HP for you.
Big NA horsies are a different kettle of fish.
For optimal power you still need to look at heads and cam. You are right though the more PSI you push the more air will get in there. But also the more heat and energy losses will occur.
I know we harp on about the same stuff over again, the same things are still important. I think if you look at any stout installs elsewhere in the world virtually nobody will be running a stock top end and cam!
I know we harp on about the same stuff over again, the same things are still important. I think if you look at any stout installs elsewhere in the world virtually nobody will be running a stock top end and cam!
TTLS1 said:
you guys tend to bang on about the same stuff over and over.
Is that not because the same questions get asked?Q1. What MPG do you get?
Q2. How can I get more power?
Q3. Is flaking door handles / wet carpets / broken f'ing gearboxes / [insert one of many common faults here] normal?
Before this turns into another measuring contest 
I am just trying to find out the best supercharger for my CV8
No change from Stock internals...
Which supercharger will give me the best bang per buck (not literally!)...
How much should I expect to achieve (HP and TQ)...
What difference will this make to the drivability...
How much will it cost...
Who from...
Not interested in 600+ HP - never will be - too specialised
I am just trying to find out the best supercharger for my CV8
No change from Stock internals...
Which supercharger will give me the best bang per buck (not literally!
)...How much should I expect to achieve (HP and TQ)...
What difference will this make to the drivability...
How much will it cost...
Who from...
Not interested in 600+ HP - never will be - too specialised
Edited by Dragonball on Monday 14th July 12:46
ukvoyager.info said:
TTLS1 said:
you guys tend to bang on about the same stuff over and over.
Is that not because the same questions get asked? Q1. What MPG do you get?
Q2. How can I get more power?
Q3. Is flaking door handles / wet carpets / broken f'ing gearboxes / [insert one of many common faults here] normal?
I have the answers for you:
1: not alot
2: supercharger
3: yes
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