They say it cannot be done - 1000bhp Supercharged VXR8

They say it cannot be done - 1000bhp Supercharged VXR8

Author
Discussion

ringram

14,700 posts

249 months

Wednesday 17th February 2016
quotequote all
If I can get 680fwhp naturally aspirated with no effort then I dont see why you cant get a bit more with a little boost.
In fact it would be so easy it would be hard not to achieve IMO.

Most failures have been exactly that. Failures, and for good reason. Little to no research and little to no understanding of things. You dont use NA parts if you want decent boost. Heads lift, liners crack, gaskets leak etc. Ive pointed this out most vociferiously for years only to be told I was being negative.

Actually realistic might be more appropriate, given the woeful history of tradgedies that have befallen those who simply boosted standard NA engines only to watch them die.

Take a look at ERL blocks or the Dart LS Next line up. Looks like 3L+ Twin Screw is the answer. And use a cam that does more than build heat of compression against closed valves while you are at it.

KarlMac

4,480 posts

142 months

Wednesday 17th February 2016
quotequote all
Tbf NRE build 1500+ bhp engines for daily drivers and they love an LS block. Will be interesting to see how this develops.

Shakermaker

11,317 posts

101 months

Wednesday 17th February 2016
quotequote all
Amazing! I love the intent on this and I really like the GTS as a base car. Rather wish I could afford a standard one right now.

Crack on with this, I await progress updates smile

ArnieVXR

2,449 posts

184 months

Wednesday 17th February 2016
quotequote all
And for the record, 'they' is reference to a bunch of people on the HSV forum that said:
(1) a 2.9 whipple was too big for a stock LS1 (the original thread that got hijacked)
(2) a stock LSA is good for up to 800hp on pump gas, but was probably only daily on a bit less than that
(3) it's remarkably easy to destroy your way through several engines before you get a working motor

There was also a lot of taking the p**s type banter that led to unfriendly responses all round.

ArnieVXR

2,449 posts

184 months

Wednesday 17th February 2016
quotequote all
And for the record, there's only been two UK based HSV/Monaros with four figure outputs. One is Harry's yellow Monaro that just topped1000hp and my red Monaro that made 1200hp. The best of the supercharged motors made 800hp IIRC. Normally aspirated cars run to about 600hp.

There have been lots of builds and lots of heartache. Everybody who's tried it has something worthwhile to say, even if it's be careful.

My approach was about as simple as it gets. I bought a fully assembled LSX427 for £8000. Bought some BW S300 turbos and had the lot fabricated up by John Sleath. It made 1200hp with ease (thanks to John's amazing tuning skills). The same engine now runs mid-8s on 97-Ron and must be pushing 1500hp.

So it can be done. I say go for it, cause you never know it might just work.

stevieturbo

17,275 posts

248 months

Wednesday 17th February 2016
quotequote all
ArnieVXR said:
And for the record, 'they' is reference to a bunch of people on the HSV forum that said:
(1) a 2.9 whipple was too big for a stock LS1 (the original thread that got hijacked)
(2) a stock LSA is good for up to 800hp on pump gas, but was probably only daily on a bit less than that
(3) it's remarkably easy to destroy your way through several engines before you get a working motor

There was also a lot of taking the p**s type banter that led to unfriendly responses all round.
And as I said, it's a piece of piss to make 1000hp with the correct parts/tuning. And also said that level with the likes of a Whipple is just a bit pointless for a road car. Unless it's for towing 40ft trailers.


ArnieVXR

2,449 posts

184 months

Wednesday 17th February 2016
quotequote all
KarlMac said:
Tbf NRE build 1500+ bhp engines for daily drivers and they love an LS block. Will be interesting to see how this develops.
I tried running my 1200hp Monaro as a daily driver and it was rubbish. Absolutely only fun to be had was boasting about the output down the pub. Unless you have an excellent 4wd setup, you simply cannot ever use the power. It's not just the speed limit problem, that much power puts you on the limit of crashing if you misjudge even slightly what's going on.

ArnieVXR

2,449 posts

184 months

Wednesday 17th February 2016
quotequote all
PS stevieturbo is a driving God, so can't be included in this discussion biggrin

Shakermaker

11,317 posts

101 months

Wednesday 17th February 2016
quotequote all
ArnieVXR said:
I tried running my 1200hp Monaro as a daily driver and it was rubbish. Absolutely only fun to be had was boasting about the output down the pub. Unless you have an excellent 4wd setup, you simply cannot ever use the power. It's not just the speed limit problem, that much power puts you on the limit of crashing if you misjudge even slightly what's going on.
yeha but how quick can you do the 1/4 mile, which is surely the domain of such a beast?

R8VXF

Original Poster:

6,788 posts

116 months

Wednesday 17th February 2016
quotequote all
To be honest, the thread title was clickbait wink

Please can we keep any more talk about what happened out of here and just concentrate on the build. Yes, there are no "pictures of shiny bits" yet, of course not. I am still spec'ing it all out. Also mentioned previously was this is a long term project that will go through certain stages and will take about 2 years to complete, maybe shorter, maybe longer, depending on my day job (currently 3 hours commuting each day frown)

Shakermaker

11,317 posts

101 months

Wednesday 17th February 2016
quotequote all
R8VXF said:
To be honest, the thread title was clickbait wink

Please can we keep any more talk about what happened out of here and just concentrate on the build. Yes, there are no "pictures of shiny bits" yet, of course not. I am still spec'ing it all out. Also mentioned previously was this is a long term project that will go through certain stages and will take about 2 years to complete, maybe shorter, maybe longer, depending on my day job (currently 3 hours commuting each day frown)
I think if you wanted Clickbait you should have gone more along the lines of "OMG! check out this 1000bhp car build! You won't BELIEVE number 8!!"


ringram

14,700 posts

249 months

Wednesday 17th February 2016
quotequote all
ArnieVXR said:
I tried running my 1200hp Monaro as a daily driver and it was rubbish. Absolutely only fun to be had was boasting about the output down the pub. Unless you have an excellent 4wd setup, you simply cannot ever use the power. It's not just the speed limit problem, that much power puts you on the limit of crashing if you misjudge even slightly what's going on.
I can confirm this as you took me for a drive in it. Anything other than idle would shred tyres, but not go any faster. As you say 100% pointless.

But I take Stevie's point that with the right ECU to sort out boost control, traction, fault domains, torque control, throttle management etc you can "detune" it enough to run nicely.

007 VXR

64,187 posts

188 months

Wednesday 17th February 2016
quotequote all
ringram said:
ArnieVXR said:
I tried running my 1200hp Monaro as a daily driver and it was rubbish. Absolutely only fun to be had was boasting about the output down the pub. Unless you have an excellent 4wd setup, you simply cannot ever use the power. It's not just the speed limit problem, that much power puts you on the limit of crashing if you misjudge even slightly what's going on.
I can confirm this as you took me for a drive in it. Anything other than idle would shred tyres, but not go any faster. As you say 100% pointless.

But I take Stevie's point that with the right ECU to sort out boost control, traction, fault domains, torque control, throttle management etc you can "detune" it enough to run nicely.
I would not like that much but in my Monaro.......

SonicShadow

2,452 posts

155 months

Wednesday 17th February 2016
quotequote all
Shakermaker said:
I think if you wanted Clickbait you should have gone more along the lines of "OMG! check out this 1000bhp car build! You won't BELIEVE number 8!!"
Get 1000bhp from your V8 with this one weird trick! Engine tuners hate him!

R8VXF

Original Poster:

6,788 posts

116 months

Wednesday 17th February 2016
quotequote all
SonicShadow said:
Shakermaker said:
I think if you wanted Clickbait you should have gone more along the lines of "OMG! check out this 1000bhp car build! You won't BELIEVE number 8!!"
Get 1000bhp from your V8 with this one weird trick! Engine tuners hate him!
rofl You do raise a good point. Think I need to work on my clickbait titles a bit more biggrin

Shakermaker

11,317 posts

101 months

Wednesday 17th February 2016
quotequote all
SonicShadow said:
Shakermaker said:
I think if you wanted Clickbait you should have gone more along the lines of "OMG! check out this 1000bhp car build! You won't BELIEVE number 8!!"
Get 1000bhp from your V8 with this one weird trick! Engine tuners hate him!
Guy discovers his mate's VXR has 1,000bhp. His reaction? Priceless!

chuntington101

5,733 posts

237 months

Wednesday 17th February 2016
quotequote all
Any reason for going with a whipe as opposed to say vortec YSI or Procharger F-1A? Both of these blowers should easily get you to your 1000bhp goal. I'm not sure if many have pushed the Whipple that high on reasonable comp. ratios and with normal fuel.

R8VXF

Original Poster:

6,788 posts

116 months

Wednesday 17th February 2016
quotequote all
chuntington101 said:
Any reason for going with a whipe as opposed to say vortec YSI or Procharger F-1A? Both of these blowers should easily get you to your 1000bhp goal. I'm not sure if many have pushed the Whipple that high on reasonable comp. ratios and with normal fuel.
I like the way PD blowers deliver their power. There are plenty of examples of Whipples running 1000+bhp, shouldn't really be too hard smile

PHCorvette

1,761 posts

103 months

Wednesday 17th February 2016
quotequote all
Good point, pd will just kill the block, drive train and tyres. Take a look at vortec you wont get under the curve torque but may get your numbers which you wont with the twin screw. It cant be done

PHCorvette

1,761 posts

103 months

Wednesday 17th February 2016
quotequote all
Barnys wife never thought she could take it but after two years of trying she finally did. Watch her scream with delight.

Then thread goes on about some pony v8 upgrade