69 replies to this topic

[griffo]

quote: "Good to know you got that installed in the end, i'm jelous! Whats the restriction on the setup atm? Or is it simply time for a smaller pully?" Paul, Not too sure what you mean by restriction at atm. Blower already has a smaller pulley and I guess there's a limit on how small you can go. cheers

[vocky]

the manifold should be fine with a single layer of decent exhaust wrap, my weapon R glows sometimes, but I don't look too often

[luna_s]

that sounds really nice,

[paulf-cam]

quote: "Good to know you got that installed in the end, i'm jelous!

Whats the restriction on the setup atm? Or is it simply time for a smaller pully?"

Paul,
Not too sure what you mean by restriction at atm. Blower already has a smaller pulley and I guess there's a limit on how small you can go.
cheers

The blower can push 1 BAR of pressure, how much is it at right now?

By restriction, i meant which part of the engine is holding the rest back - manifold, injectors etc?

Cheers, Paul.

[griffo]

The blower can push 1 BAR of pressure, how much is it at right now? By restriction, i meant which part of the engine is holding the rest back - manifold, injectors etc? Cheers, Paul. [/quote] I have a pressure guage I will fit when I get round to it but I believe the blower is running currently at max just under one bar -- maybe around 13psi (1 bar at sea level is around 14.7 psi). Dont think there is much restriction, though a bigger bore exhaust system may help a bit.

[paulf-cam]

I have a pressure guage I will fit when I get round to it but I believe the blower is running currently at max just under one bar -- maybe around 13psi (1 bar at sea level is around 14.7 psi). Dont think there is much restriction, though a bigger bore exhaust system may help a bit.

Cool - have you got anything lined up next or are you happy with the performance as it is? I heard you can mod the intake manifold to route the water through it twice (GM did this for one of their cobalt drag cars) but i can't find the pdf now... I guess you could add water injection straight into the manifold?

Cheers, Paul.

[griffo]

I have a pressure guage I will fit when I get round to it but I believe the blower is running currently at max just under one bar -- maybe around 13psi (1 bar at sea level is around 14.7 psi). Dont think there is much restriction, though a bigger bore exhaust system may help a bit.

Cool - have you got anything lined up next or are you happy with the performance as it is? I heard you can mod the intake manifold to route the water through it twice (GM did this for one of their cobalt drag cars) but i can't find the pdf now... I guess you could add water injection straight into the manifold?

Cheers, Paul.

Since I wont get to actually drive it for a few weeks (have the rear boot surgery and heat shielding to do) guess I'll just leave it as it is for a while.
cheers

[NickB787]

Sound like I may have mine on the road first then I went for the 68 T/B after all talking to Mark no certain how much difference but with the full miltec I tought I might as well. Standard exhuast manifold unless someone lends me there Dbilas mainfold to try. Water cool hay?

[griffo]

[quote name='NickB777' date='Dec 18 2006, 18:18 ' post='536253']
Sound like I may have mine on the road first then

I went for the 68 T/B after all talking to Mark no certain how much difference but with the full miltec I tought I might as well. Standard exhuast manifold unless someone lends me there Dbilas mainfold to try.



Sounds really good. I think you are probably right to forget the weapon r/Tsudo. At least with the standrad manifold you will not have cracking fears. very much look forward to hearing your results.
cheers
Griffo

[NickB787]

Sound like I may have mine on the road first then

I went for the 68 T/B after all talking to Mark no certain how much difference but with the full miltec I tought I might as well. Standard exhuast manifold unless someone lends me there Dbilas mainfold to try.



Water cool hay?

Funny looking at this this morning I realised I was slightly more
than I realised couldn't spell to save my life

The standard manifold should be ok unless I can get a Dbilas to try, although heavy it shouldn't have any cracking worries for me

[NickB787]

Question If I wanted the rev limit at 7000 rpm, how much extra strain on the engine and parts do you think there would be (thinking longevity and reliability) If I did use this rev limit, what preemptive measures would be recommended I was thinking Eagle rods, different piston? but would these on there own be enough or are we talking big end work?

Edited by NickB777, 01 January 2007 - 08:57 AM.

[vocky]

a 7k rev limit should be ok for under 200 bhp, but above that I would recommend Eagle rods for a sc or turbo conversion I would recommend using low compression pistons my Eagle rods are on order at the moment, should arrive in a week or two as for the weapon R cracking, mine is coming up to 3 years old and has been lagged from new - had no problems so far

Edited by vocky, 01 January 2007 - 12:16 PM.

[NickB787]

I believe they lower the compression on the head on the S/C conversion (probably by adding a larger gasket) but could you do it simply by putting lower compression pistons? if so could be worth getting some ordered.

[vocky]

I believe they do indeed use a thicker head gasket, changing the pistons is better - but much more expensive

[griffo]

As promised, first driving impressions of my s/c setup. Courtenay did it before xmas but its taken me a few weeks to modify the boot (to clear exhaust manifold) and get the clam back on. To remind you - I'm running a 68mm throttle body, Eagle rods, Weapon R mani and home brewed exhaust and chargecooler. It was pissing with rain, which combined with Cornish cowshit to make a slippery surface, but the first brief -- and very careful -- drive left me mighty impressed. Couldn't give it much welly due to the conditions but it felt as though it was fitted with a much bigger engine. Not at all tempramental, none of that nothing-then-sudden-boost you get with turbos or need to rev the nuts off it caused by big chokes and hot cams, just lots of linear torque from low down. If it ever stops raining and the roads dry I'll be out again for a proper test and see what its like higher in the rev range.

[speedyK]

felt as though it was fitted with a much bigger engine () lots of linear torque from low down.

S/Cs are fantastic

Have you got the rubber and brakes to stop it too?

[griffo]

Got sticky rubber but I should probably think about uprated brakes. Currently I am protected by my highly-developed sense of cowardice. cheers

[ChazUwe]

It really is great to see some more people going for the S/C conversion. I am serious considering getting it done next winter. There is only one thing that would make me a little hesitant, and that is the noise you get in the car. I love the noise of mine now with an ITG and milltek. How do you find the noise of the supercharger. Is it very whiny or particularly intrusive?? The power delivery does look awesome though. What did Courtaney RR yours to after the S/C was fitted?

[NickB787]

Thanks Griffo You got it on the road before mine o well at least I know the setup works. Looking forward to Monday Still wondering about my Regal backbox though.

[griffo]

It really is great to see some more people going for the S/C conversion. I am serious considering getting it done next winter.

There is only one thing that would make me a little hesitant, and that is the noise you get in the car. I love the noise of mine now with an ITG and milltek. How do you find the noise of the supercharger. Is it very whiny or particularly intrusive??

The power delivery does look awesome though. What did Courtaney RR yours to after the S/C was fitted?

Cant really comment about the noise yet since I've not been able to hoof it. However, previous s/c car experience (Jaguar) suggests just a pleasant whine and only at high revs. Mine gave 237 bhp on the rollers and loads more torque. BHP might have been even higher with a large bore Milltek system.