Almost.. 5.7L no power adders goes 385+ RWHP

[ringram]

Well I was hoping to top the supercharged guys, but while close it wasnt close enough.
Made 385rwhp just 20bhp off a factory 2006 Z06 7L Corvette!

With an underdrive pulley, electric water pump and maybe dual 3" exhaust and running on 99 Octane vmax or something Id do it.
A bigger cam would also have done it.

But with my sainsburys super and 7 year old exhaust 385rwhp will do me. (And still scare some of the SC lads!)

[Smiler.]

Good effort Richard. Now, was the bonnet up or down........

[crisisjez]

May not look as strong on paper but in my experience NA BHP always feels stronger than forced!!.
Nice one!!!!
What you runnin?

Edited by crisisjez on Thursday 10th May 18:22

[RobKarloff]

Wow, that's a good set of figures and a nice smooth set of curves too!

[VXR_Daz]

Hmmm, interesting.

Comparing your power with mine from last week the overall numbers are pretty close and a good job.

Would be interested to see how they compare on the road, appears you are down a lot on torque compared with the SC in the low down revs.

[crisisjez]

pretty similar to mine but peak t about 1500 rpm later
I`m running cast headers and stock exhaust.

[ringram]

Yeah it depends what you want out of things. I like the cam sound of a nice NA setup.
I have Dart heads and a 220/224 crane cam running mafless with an otrcai. I recon I could do 400 with the mods suggested, but Id be chasing numbers
My wallet would also empty further. Its nice to drive as is so I think Ill finish up at this point.
There are a couple of other blokes with NA setups under way. One looking at AFR heads/cam and fast90 that should break the 400 easy.

[weltmeister]

Richard why was it run in Shoot 8F ? That is for forced induction and the ramp rate may be different and the outcome different ? Do'nt know for sure but you may actually have more BHP

Cheers

Allan

[hsv_rulz]

Nice work, Richard.

[J. J.]

RobKarloff said:
"Wow, that's a good set of figures and a nice smooth set of curves too!"

Bit personal isn't it? What was he talking about anyway???

[vixpy1]

weltmeister said:

Richard why was it run in Shoot 8F ? That is for forced induction and the ramp rate may be different and the outcome different ? Do'nt know for sure but you may actually have more BHP

Cheers

Allan

It was run in both Allan, and the result was exactly the same in both, I used Shoot8F purely to keep the run times down while mapping.

[stigmundfreud]

nice work rich! I have to say I do really like the idea of keeping things NA but for the hassle of swapping heads over I might as well dump a charger under teh bonet and finally get my hands on an FI petrol engine

the cam you are using whats the idle like on that.

[ringram]

Current idle is set to 760rpm, lower than stock. Its noticeable, but not rough.

[stigmundfreud]

and whats it sound like?

The car has enough power, its all about the sound now

[ringram]

vixpy1 liked the sound.. Its quiet at idle but screams pretty loud when pushed.

[stigmundfreud]

just as it should be!

[RobKarloff]

J. J. said:

RobKarloff said:
"Wow, that's a good set of figures and a nice smooth set of curves too!"

Bit personal isn't it? What was he talking about anyway???

Haha, knew *somebody* would make that joke!

[ringram]

Now imagine a larger cam only setup in a VXR stock 6L!

It has a larger engine and throttle, better flowing heads with higher compression. I wouldnt be surprised if it matched or beat my numbers. Something like a 224/228-112 comp cams on XER lobes.

The BHP per pound on that would smash any of the mild SC setups. £325 will buy you the cam and valve springs required. The rest is labour and some gaskets etc.

[weltmeister]

vixpy1 said:

weltmeister said:

Richard why was it run in Shoot 8F ? That is for forced induction and the ramp rate may be different and the outcome different ? Do'nt know for sure but you may actually have more BHP

Cheers

Allan

It was run in both Allan, and the result was exactly the same in both, I used Shoot8F purely to keep the run times down while mapping.

Charlie
Not having run in 8 & 8F on the same car I was'nt sure if RR would be different. I did not know Richard was mapping it, though he had just done a powertest. No malice meant.

Cheers

Allan

[RobKarloff]

ringram said:

Now imagine a larger cam only setup in a VXR stock 6L!

It has a larger engine and throttle, better flowing heads with higher compression. I wouldnt be surprised if it matched or beat my numbers. Something like a 224/228-112 comp cams on XER lobes.

The BHP per pound on that would smash any of the mild SC setups. £325 will buy you the cam and valve springs required. The rest is labour and some gaskets etc.

It may well, but you'll never beat a good SC setup for torque delivery. Even the standard car more than enough power to maintain silly speeds easily, but the thing with the blower is the torque delivery and increase in acceleration that gives. Can't beat that I don't think!!