V8 HSV with LSV 25.07.05 - final visit?
Discussion
Though I would post on this topic as I have had so many conversations regarding the issues that I have with the cars engine modifications to date, hopefully looking for closure on the whole saga and despite what people might have thought I am still confident that LSV will be able to realise the cars potential for making substantial power.
What LSV have done to the suspension and its subsequent handling characteristics is in my opinion totally awesome, it’s like driving a different car, installs confidence and takes cornering ability to new heights, can’t wait to get it on track once I fit a quieter exhaust system.
I will be compiling a long-term road test covering 35,000 miles of ownership from purchase at 3 yrs old (30,000 on the clock) car that will initially deal with the car as standard and its subsequent modifications which I hope to host on my web site once I have evaluated LSV’s final work.
What LSV have done to the suspension and its subsequent handling characteristics is in my opinion totally awesome, it’s like driving a different car, installs confidence and takes cornering ability to new heights, can’t wait to get it on track once I fit a quieter exhaust system.
I will be compiling a long-term road test covering 35,000 miles of ownership from purchase at 3 yrs old (30,000 on the clock) car that will initially deal with the car as standard and its subsequent modifications which I hope to host on my web site once I have evaluated LSV’s final work.
V8 OSV
It is indeed a very long story but in essence it relates to ECU tuning via a rolling road after realisation that a cetain Oz supplier does not tune ECU's for specific applications.
I have done literally everything I can think of to make the car faster, better handling, quicker stopping and expect + 600 figures in terms of BHP & torque, looking for no more 'work-in-progress' comments & closure on the whole saga that has been going on for over a year, over £50k spent on mods to date and I now expect results in the engine department!
>> Edited by V8HSV on Friday 15th July 14:25
It is indeed a very long story but in essence it relates to ECU tuning via a rolling road after realisation that a cetain Oz supplier does not tune ECU's for specific applications.
I have done literally everything I can think of to make the car faster, better handling, quicker stopping and expect + 600 figures in terms of BHP & torque, looking for no more 'work-in-progress' comments & closure on the whole saga that has been going on for over a year, over £50k spent on mods to date and I now expect results in the engine department!
>> Edited by V8HSV on Friday 15th July 14:25
It is already a bloody good car but 500+ brake just feels so slow and I hate the black smoke associated with over-fuelling. I expect it to be sub 10 seconds to 100 mph and 4 seconds to 60 and will go for the max (not in uk) when I get it back from Linden, should be good for 195 mph, I've seem 180+ on French roads already.
I think the 4-door body hits an aerodynamic brick wall at 195 mph whereas the 2-door body will getr past 200 mph.
Yes revised gearing could get it past 200 but to be honest it is off little interest to me, yes I want to finf the max speed but in reality I will only be using 130-160 as top speed, tyres certainly are an issue, especially mine being 250 KG over weight.
Been quoted £3k for two new cogs, I think panoma has a new ratio set-up?
Yes revised gearing could get it past 200 but to be honest it is off little interest to me, yes I want to finf the max speed but in reality I will only be using 130-160 as top speed, tyres certainly are an issue, especially mine being 250 KG over weight.
Been quoted £3k for two new cogs, I think panoma has a new ratio set-up?
The car has been very well looked after in terms of servicing, not allways booted to hell and back and am confident of engine health. Paul (ukhsv) did remap the bottom end and it was fuelled correctly to 4.5k without black smoke, the ECU refresh/auto tune put it .back to over fueling
I remember saying in the first year that I would not modify the HSV in any way, lot of car for £20k and very happy with it, shame I did not sticki with that comment.
Yes I know the expenditure is somewhat ludicrous for a 5-year-old car but then I happen to like it over well-known marques, personally I would not like to be seen in prestige marques, as it would not reflect my personality plus I doubt if I would be questioned daily by other drivers as to ‘what have you got there’, awesome car, ‘I just want one’ etc.
If it was just performance then the Aerial Atom comes to mind, had an SL55 out for a day, amazing car but would not want to be seen dead in it, gay icon and all that, I have 2 smarts for that tag.
Outside the initial purchase costs the first outlay of nearly £11k went into a Kenwood system, 3 DVD players, 3 x 7” colour touch screen monitors, 1000 watt amp, active middle & sub bass speakers, security systems etc. Then the brakes £7.5k, these were the initial mods in the first year, another year passed until I lost out to an AMG at Bruntingthorpe, then £20k passed to the engine and after another year more money to suspension & drive train, so a gradual loss of money rather than just blowing £50k which involved re-mortgaging, certainly would not have pawned the house for a Porsche, AMG or BMW, the M5 was not available in its current form back then and the HSV has always been an M5 beater till now, I think mine when finished would give the new M5 a run for it’s money but it would loose out on refinement & top speed for sure.
Its all down to individual taste at the end of the day, the HSV used to be relatively unique with only 30- examples exported to blighty, nowadays it has lost out to Monaro imports but then it’s nice to have 4 doors and a good boot and the same platform as raced in Australia.
The HSV GTS is still a great car and still turns heads and my long term ambition is to draw my pension from the local post office in it.
Yes I know the expenditure is somewhat ludicrous for a 5-year-old car but then I happen to like it over well-known marques, personally I would not like to be seen in prestige marques, as it would not reflect my personality plus I doubt if I would be questioned daily by other drivers as to ‘what have you got there’, awesome car, ‘I just want one’ etc.
If it was just performance then the Aerial Atom comes to mind, had an SL55 out for a day, amazing car but would not want to be seen dead in it, gay icon and all that, I have 2 smarts for that tag.
Outside the initial purchase costs the first outlay of nearly £11k went into a Kenwood system, 3 DVD players, 3 x 7” colour touch screen monitors, 1000 watt amp, active middle & sub bass speakers, security systems etc. Then the brakes £7.5k, these were the initial mods in the first year, another year passed until I lost out to an AMG at Bruntingthorpe, then £20k passed to the engine and after another year more money to suspension & drive train, so a gradual loss of money rather than just blowing £50k which involved re-mortgaging, certainly would not have pawned the house for a Porsche, AMG or BMW, the M5 was not available in its current form back then and the HSV has always been an M5 beater till now, I think mine when finished would give the new M5 a run for it’s money but it would loose out on refinement & top speed for sure.
Its all down to individual taste at the end of the day, the HSV used to be relatively unique with only 30- examples exported to blighty, nowadays it has lost out to Monaro imports but then it’s nice to have 4 doors and a good boot and the same platform as raced in Australia.
The HSV GTS is still a great car and still turns heads and my long term ambition is to draw my pension from the local post office in it.
Thanks for the interest
Continued delay due to a static mechanical component at fault, engine tuning continued today, resulting in better AFR’s but minimal increase over best figures achieved to date (ukhsv to thank there) and max power higher up rev band but below 5.8k, hotter cam being fitted soon, Marks off on his hols weds but John no doubt will have it sorted by the w/e. Worth noting that the MAF sensor has now been installed along with the knock sensors so that will curb max power rather than no MAF & turn it up to ‘eleven’. Remember I am not technical and know very little but I am experiencing what is involved with obtaining relative high horse power and all I can say is not that straight forward no matter what people say.
I can say they are doing everything they can do to the best of their abilities and Tim has sanctioned the cam exchange, so I think I can be patient for just a little longer.
My experiences from all sources seen and discussed and my own would indicate that there are limitations as to what power can be achieved with a 5.7 LS1, by adding all the quoted outputs for each component you cannot assume that it will add up, more than likely that 450 bhp aspirated and 550 bhp via a blower are roughly it’s limits without major engine internal changes, cams help but not necessarily when you add a blower. Of course there will be examples to disprove my statements but I reckon I’m not far off. Just an opinionated viewpoint from an HSV fan that wished his car was in Oz.
Hope to be a happy chappy next week, well I can dream can’t I
Continued delay due to a static mechanical component at fault, engine tuning continued today, resulting in better AFR’s but minimal increase over best figures achieved to date (ukhsv to thank there) and max power higher up rev band but below 5.8k, hotter cam being fitted soon, Marks off on his hols weds but John no doubt will have it sorted by the w/e. Worth noting that the MAF sensor has now been installed along with the knock sensors so that will curb max power rather than no MAF & turn it up to ‘eleven’. Remember I am not technical and know very little but I am experiencing what is involved with obtaining relative high horse power and all I can say is not that straight forward no matter what people say.
I can say they are doing everything they can do to the best of their abilities and Tim has sanctioned the cam exchange, so I think I can be patient for just a little longer.
My experiences from all sources seen and discussed and my own would indicate that there are limitations as to what power can be achieved with a 5.7 LS1, by adding all the quoted outputs for each component you cannot assume that it will add up, more than likely that 450 bhp aspirated and 550 bhp via a blower are roughly it’s limits without major engine internal changes, cams help but not necessarily when you add a blower. Of course there will be examples to disprove my statements but I reckon I’m not far off. Just an opinionated viewpoint from an HSV fan that wished his car was in Oz.
Hope to be a happy chappy next week, well I can dream can’t I
It’s all standard at the bottom end apart from enlarged/baffled sump and 8 paddle racing clutch.
It’s always produced a disproportionate amount of torque; Mark did say the figure might be spurious with very hot tyres, hell i'm past caring if its in tune.
Lasst time round the 600rwt was at 4.5k, then no maf sensor and badly over fueled at the top end
It’s always produced a disproportionate amount of torque; Mark did say the figure might be spurious with very hot tyres, hell i'm past caring if its in tune.
Lasst time round the 600rwt was at 4.5k, then no maf sensor and badly over fueled at the top end
I'll have to get back to you from the dark side, car with Linden Special Vehicles & expect to get it back next week, will post up dyno results then.
I'm not a techie so I have no idea on the cam, suffice to say it's from CAPA, I have HP Tuning s/w but LSV use LS1 Edit Live. Paul from Wortec got the hub figures to 500 brake/550 torque at 4.5k, could not get it to upload past 4.5k, these figs are DIN, the SAE ones were 550 brake/600 torque, all that without knock sensors or MAF, they are now in so no real big gains with max power at about 5.4k.
Basic spec:
V2 Vortec Supercharger (9 p.s.i.)
Cold Air Intake System
4” Inlet MAFFless – MAF now 2 bar
Performance Injectors
Heavy Duty (5 Row) Intercooler
Large Inlet/Exhaust Valves
Performance Valve Spring Retainers
High Output Valve Springs
Fuel Surge Tank with Bosch M/Sport Pump
80mm Throttle Body
C.A.P.A. Custom Camshaft
1:8 Ratio Billet Aluminium Roller Rockers
Modified Oil Cooler System
Modified Power Steering Cooler System
Larger baffled sump
Racing Clutch (800 BHP 4 paddle)
4-1 Large Bore Headers (CAPA)
Custom Stainless Straight-Through Exhaust System
Quick Shift System
AP Racing 6-Pot Callipers (360mm front) & 4-Pot (335mm rear)
Starr Performance coil over suspension & bushes + up rated Anti-Roll Bars
I'm not a techie so I have no idea on the cam, suffice to say it's from CAPA, I have HP Tuning s/w but LSV use LS1 Edit Live. Paul from Wortec got the hub figures to 500 brake/550 torque at 4.5k, could not get it to upload past 4.5k, these figs are DIN, the SAE ones were 550 brake/600 torque, all that without knock sensors or MAF, they are now in so no real big gains with max power at about 5.4k.
Basic spec:
V2 Vortec Supercharger (9 p.s.i.)
Cold Air Intake System
4” Inlet MAFFless – MAF now 2 bar
Performance Injectors
Heavy Duty (5 Row) Intercooler
Large Inlet/Exhaust Valves
Performance Valve Spring Retainers
High Output Valve Springs
Fuel Surge Tank with Bosch M/Sport Pump
80mm Throttle Body
C.A.P.A. Custom Camshaft
1:8 Ratio Billet Aluminium Roller Rockers
Modified Oil Cooler System
Modified Power Steering Cooler System
Larger baffled sump
Racing Clutch (800 BHP 4 paddle)
4-1 Large Bore Headers (CAPA)
Custom Stainless Straight-Through Exhaust System
Quick Shift System
AP Racing 6-Pot Callipers (360mm front) & 4-Pot (335mm rear)
Starr Performance coil over suspension & bushes + up rated Anti-Roll Bars
Ah, there’s the rub, tedious, heavy and very difficult to apply in traffic or hills and a right pain in the proverbial, would I go back to a standard spec clutch even if not moddded - no way. If you engage at idle or are gossamer smooth then it's ok, anything else has the prop loudly knocking in the tunnel, so bad you really need to start and have another go, stopped stalling it a long time ago but takes a week to get used to if you don’t drive it for a week and drive other cars.
Long winded reply but the clutch is awesome for application of power, you can be a real rude boy in town with no judder/slip or clutch burning aroma. With your diff lock on take off you would be in seventh heaven Tom, but then I am a bit ‘Pepperami’ at times with the beast.
Only upgrade if you have to, most folks say past a certain point the increase in power (especially torque) will fry a standard clutch, I did that on 343 bhp!
Long winded reply but the clutch is awesome for application of power, you can be a real rude boy in town with no judder/slip or clutch burning aroma. With your diff lock on take off you would be in seventh heaven Tom, but then I am a bit ‘Pepperami’ at times with the beast.
Only upgrade if you have to, most folks say past a certain point the increase in power (especially torque) will fry a standard clutch, I did that on 343 bhp!
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