Discussion
say i wanted 600bhp.
ide supercharged the car fitted exaust headers and filters. got to be about 500+ by then.
What is then required for 600bhp larger injectors will a remap cope or will something more complex be required? head work? internals?
will the standard drive train (apart from brakes) stand up to it? im guessing a ls7 clutch but what about diff etc?
ide supercharged the car fitted exaust headers and filters. got to be about 500+ by then.
What is then required for 600bhp larger injectors will a remap cope or will something more complex be required? head work? internals?
will the standard drive train (apart from brakes) stand up to it? im guessing a ls7 clutch but what about diff etc?
Standard HE112 S/C @ 5/6 PSI boost will give you around the 500 mark.... increasing the boost up to 12 will then bring it in...
I will point you to the Vauxhall owned VXR 600 Ute with said boost... plus a few members on here.
As for other bits.... optional mostly, but prudence would require investigation to ensure reliability
I will point you to the Vauxhall owned VXR 600 Ute with said boost... plus a few members on here.
As for other bits.... optional mostly, but prudence would require investigation to ensure reliability
You might want to talk to the blokes with SC setups who do the drags, sprints and dyno days.
The Eaton SC is fussy with heat, so you might not get a consistent power output. PM Jez, he has some new plans on the cards and has "been there done that" with the SC route so can expand more. Are you after a number or a particular performance target? (ie) Dyno Queen, or sub 12 sec quarters etc
Just bolting an SC on might not do what you want, supporting mods may be required like heads/cams etc.
Best to figure out what you are after in a specific relevant manner and then research the options etc. If you just want a dyno number then you can probably dunk the dyno IAT probe into a cup of hot water and do a run with the stock engine.
Ideally go for a drive with some of the guys who have mods and see which setup gives you what you are after. I drove a demo Vauxhall VXR8 with SC and it was frankly horrid. Probably get just as much with intake, exhaust, rockers and tune on the stocky IMO.
The Eaton SC is fussy with heat, so you might not get a consistent power output. PM Jez, he has some new plans on the cards and has "been there done that" with the SC route so can expand more. Are you after a number or a particular performance target? (ie) Dyno Queen, or sub 12 sec quarters etc
Just bolting an SC on might not do what you want, supporting mods may be required like heads/cams etc.
Best to figure out what you are after in a specific relevant manner and then research the options etc. If you just want a dyno number then you can probably dunk the dyno IAT probe into a cup of hot water and do a run with the stock engine.
Ideally go for a drive with some of the guys who have mods and see which setup gives you what you are after. I drove a demo Vauxhall VXR8 with SC and it was frankly horrid. Probably get just as much with intake, exhaust, rockers and tune on the stocky IMO.
6ltr LS2, 122 SC and intercooled 12psi will get you 600 odd but its on the limit I have been told.... Mines fine though running that. TBH it wont be that much faster than a 500bhp model unless you wring its neck but its nice to know your ultimately faster. Also with stock tires and wheels you wont get the power down very easy.
Lots of routes to high bhp but the SC one is the simplest and most effective unless you want ultimate reliability every day at high revs, then yr talking rebuild, big bore and steel internals but IMHO its all a bit expensive if your going to use it on the road most of the time.
Lots of routes to high bhp but the SC one is the simplest and most effective unless you want ultimate reliability every day at high revs, then yr talking rebuild, big bore and steel internals but IMHO its all a bit expensive if your going to use it on the road most of the time.
Want the power for the road.
Completely used to the 400bhp now and think 500bhp will see me wanting more still. My brothers 200sx that owes him about £1500 is 300bhp and will keep up with me in a straight line because its only 1200kg max.
got to draw the line somewhere and i think 600bhp is it becuase past that forged pistons etc would be required.
Completely used to the 400bhp now and think 500bhp will see me wanting more still. My brothers 200sx that owes him about £1500 is 300bhp and will keep up with me in a straight line because its only 1200kg max.
got to draw the line somewhere and i think 600bhp is it becuase past that forged pistons etc would be required.
S600VXR said:
6ltr LS2, 122 SC and intercooled 12psi will get you 600 odd but its on the limit I have been told.... Mines fine though running that. TBH it wont be that much faster than a 500bhp model unless you wring its neck but its nice to know your ultimately faster. Also with stock tires and wheels you wont get the power down very easy.
Lots of routes to high bhp but the SC one is the simplest and most effective unless you want ultimate reliability every day at high revs, then yr talking rebuild, big bore and steel internals but IMHO its all a bit expensive if your going to use it on the road most of the time.
Lots of routes to high bhp but the SC one is the simplest and most effective unless you want ultimate reliability every day at high revs, then yr talking rebuild, big bore and steel internals but IMHO its all a bit expensive if your going to use it on the road most of the time.
is that on stock injectors and ecu just remapped? presume its a centrifugual sc to be intercooled?
Im assuming you have a 6.0 vxr? If so, id go Harrop 122 supercharger on an intermediate pulley which will give you cira 570 bhp. Not quite so near the limit of the stock engine but a good solid reliable set up. Comes with bigger injectors as part of the kit. You will "probably" need a clutch. Would recommend the LS7 at this level. Give me a call if you want to discuss in more detail.
monkfish1 said:
Im assuming you have a 6.0 vxr? If so, id go Harrop 122 supercharger on an intermediate pulley which will give you cira 570 bhp. Not quite so near the limit of the stock engine but a good solid reliable set up. Comes with bigger injectors as part of the kit. You will "probably" need a clutch. Would recommend the LS7 at this level. Give me a call if you want to discuss in more detail.
it is a 6.0 VXR presume the kit would be circa 4-5k or more? that setup sounds good within limits that would keep my busy for a while anyway until i get my bonus then wooohoooo!!
racebreed said:
it is a 6.0 VXR presume the kit would be circa 4-5k or more? that setup sounds good within limits that would keep my busy for a while anyway until i get my bonus then wooohoooo!!
Assuming you have no SC at the moment I believe you are looking at nearer £7k. For reference, JamieP's car had headers, exhaust and a 112HH and it made about 570fwhp; should give you a guide.
Edited by anonymous-user on Thursday 2nd October 19:13
S600VXR said:
6ltr LS2, 122 SC and intercooled 12psi will get you 600 odd but its on the limit I have been told.... Mines fine though running that. TBH it wont be that much faster than a 500bhp model unless you wring its neck but its nice to know your ultimately faster. Also with stock tires and wheels you wont get the power down very easy.
Lots of routes to high bhp but the SC one is the simplest and most effective unless you want ultimate reliability every day at high revs, then yr talking rebuild, big bore and steel internals but IMHO its all a bit expensive if your going to use it on the road most of the time.
Lots of routes to high bhp but the SC one is the simplest and most effective unless you want ultimate reliability every day at high revs, then yr talking rebuild, big bore and steel internals but IMHO its all a bit expensive if your going to use it on the road most of the time.
I've looked at the Wortec graphs for yours; is that 630hp at the hubs? What difference do tyres make, just curious?
racebreed said:
Want the power for the road.
Completely used to the 400bhp now and think 500bhp will see me wanting more still. My brothers 200sx that owes him about £1500 is 300bhp and will keep up with me in a straight line because its only 1200kg max.
got to draw the line somewhere and i think 600bhp is it becuase past that forged pistons etc would be required.
I'd look at a procharger setup. Eaton Roots blower is old hat and not suited well to bug HP applications.Completely used to the 400bhp now and think 500bhp will see me wanting more still. My brothers 200sx that owes him about £1500 is 300bhp and will keep up with me in a straight line because its only 1200kg max.
got to draw the line somewhere and i think 600bhp is it becuase past that forged pistons etc would be required.
For general info on anything LS go here: www.ls1tech.com
Sure you know already, but just look for Pontiac GTO.
You might find these guys helpful for a setup though:
http://www.exoticperformanceplus.com/performance_p...
Also take a look at what they did to this Corvette
http://www.exoticperformanceplus.com/hotCars.php?c...
My mate has a vortech on a 6L L98 SS Commodore and it put down 455rwhp
I think he got the 7spi kit which is rated at 586bhp http://www.capa.com.au/kits_holden_ve_v8.htm
Which makes sense with the recent dyno results here.
So its a bit more efficient than the Eaton stuff, but different power curve.
He smashed it up the other day unsurprisingly. (Knowing how he drives)
I think he got the 7spi kit which is rated at 586bhp http://www.capa.com.au/kits_holden_ve_v8.htm
Which makes sense with the recent dyno results here.
So its a bit more efficient than the Eaton stuff, but different power curve.
He smashed it up the other day unsurprisingly. (Knowing how he drives)
ringram said:
My mate has a vortech on a 6L L98 SS Commodore and it put down 455rwhp
I think he got the 7spi kit which is rated at 586bhp www.capa.com.au/kits_holden_ve_v8.htm
Which makes sense with the recent dyno results here.
So its a bit more efficient than the Eaton stuff, but different power curve.
He smashed it up the other day unsurprisingly. (Knowing how he drives)
I think he got the 7spi kit which is rated at 586bhp www.capa.com.au/kits_holden_ve_v8.htm
Which makes sense with the recent dyno results here.
So its a bit more efficient than the Eaton stuff, but different power curve.
He smashed it up the other day unsurprisingly. (Knowing how he drives)
that is one cool website wonder if vauxhall will cover my warranty if i bolt one of them badboys to the engine
300bhp/ton said:
I'd look at a procharger setup. Eaton Roots blower is old hat and not suited well to bug HP applications.
Sorry, I cannot agree. A centrifugal SC may give bigger numbers but the torque, which counts on the road, is crap by comparison. Take a look at the 6th Gen/4 lobe TVS blowers and you will see they now offer the same thermal efficiency (76%) as the centrifugal ones - ie the best of both worlds.
You may want to look at this to see what I mean: http://uk.youtube.com/watch?v=4ZEBwyT
Either way, at 600hp you're wise to go forged I'd say.
Edited by anonymous-user on Friday 3rd October 11:48
wormus said:
300bhp/ton said:
I'd look at a procharger setup. Eaton Roots blower is old hat and not suited well to bug HP applications.
Sorry, I cannot agree. A centrifugal SC may give bigger numbers but the torque, which counts on the road, is crap by comparison. Take a look at the 6th Gen/4 lobe TVS blowers and you will see they now offer the same thermal efficiency (76%) as the centrifugal ones - ie the best of both worlds.You may want to look at this to see what I mean: http://uk.youtube.com/watch?v=4ZEBwyTGs9s
Edited by wormus on Friday 3rd October 11:48
Also with a centri most run more aggressive final drive.
Not saying Roots is bad, as a low boost setup they work well, but are far from ideal. I've also not seen a Roots LS1 setup get anywhere near 700rwhp, where as many centri's do.
I guess if you want torque you ought to go twin screw: www.kennebell.net
wormus said:
300bhp/ton said:
I'd look at a procharger setup. Eaton Roots blower is old hat and not suited well to bug HP applications.
You may want to look at this to see what I mean: http://uk.youtube.com/watch?v=4ZEBwyTGs9s Edited by wormus on Friday 3rd October 11:48
Although its say it's a 434ci motor, not a 346ci like I posted. I'm pretty sure a Procharger F1 on 434ci would make similar or probably better numbers.
Not dissing the Eatons, I like them and they make a great sound, but I've not seen anything that would support them as being the best supercharger, unless low level boost and low budget are the key factors.
I think they are just different in character. Going back to Richard's comment, they may get hammered on the track but high torque is handy on the road when shifting such a heavy car quickly. I love the low end grunt of mine but have to admit to being disappointed by top end.
My solution is to make the engine breathe better with cam/heads/exhaust/TB. Mine is being built with 600-650rwhp in mind and it should do that easily if we just keep turning the boost up
What I've learned is the blower is only one part of making big power, you need to spend money on the other parts too.
My solution is to make the engine breathe better with cam/heads/exhaust/TB. Mine is being built with 600-650rwhp in mind and it should do that easily if we just keep turning the boost up
What I've learned is the blower is only one part of making big power, you need to spend money on the other parts too.
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