Power Delivery ?

[Nodalmighty]

With option 4, Supercharger, why does it have to be crap top end? A good twin screw, like a Whipple/Lysholm provides good top end and so can Centrifugals, it's only the Roots style that blow ( ) in the top end?

 

I love the turbo rush in a road car, but I'm with big N/A or S/C power for a track car.

 

Centrifugals don't provide fast response bottom end boost they tend to be very linear. The Whipple is in a class of it's own but as most people would be thinking of adding a blower to compliment the turbo they already have a Whipple would make the turbo pointless. Try getting a Supra owner to throw his GT42R in the bin and put on 3k of Supercharger kit on instead (it's never going to happen ).

[Smallshinyant]

I'm liking the idea of V8 power delivery. Recent discussions have got me seriously considering.

[johnny g]

Centrifugals don't provide fast response bottom end boost they tend to be very linear. The Whipple is in a class of it's own but as most people would be thinking of adding a blower to compliment the turbo they already have a Whipple would make the turbo pointless. Try getting a Supra owner to throw his GT42R in the bin and put on 3k of Supercharger kit on instead (it's never going to happen ).

 

I'd love to see a Whipple'd 2JZ. Something like the W245 series, with 4.0l/rev displacement would provide insane fun - but getting it mounted and plumbed in would be a right pain.

[barneybrendan]

It has got double pulleys and two separate belts already, are we looking at the same photos? I mean the ones JamieP put up. By toothed belt for the alternator et cetera I mean like a timing belt. Not a good idea for superchargers though as the drive to those are much safer and more forgiving with some slippage in them.

 

duh looked at the pics too quick,looked like one belt as the crank pulley didnt look like it was doubled.can see the auxillary belt behind the charger one now.

 

whipple charger specs look good now but at some cost.

http://www.whipplesuperchargers.com/product.asp?ProdID=1162

[barneybrendan]

I'd love to see a Whipple'd 2JZ. Something like the W245 series, with 4.0l/rev displacement would provide insane fun - but getting it mounted and plumbed in would be a right pain.

 

i think the pain woul be the cost of the unit.

[Nodalmighty]

I'd love to see a Whipple'd 2JZ. Something like the W245 series, with 4.0l/rev displacement would provide insane fun - but getting it mounted and plumbed in would be a right pain.

 

So would I, get it done

[johnny g]

So would I, get it done

 

I did have the W200 for the MR2 before I went 5VZ with it, but for the Supra, I've just bought the HKS Big Twin kit. That's my project now.

[Gaz6002]

So would I, get it done

 

Yeah, he needs a supercharger as well as the big twins he just bought for his VVTi.

 

Do it Johnboy. You know it makes sense. Well it does in my head anyway.

[AndrewOW]

I know these are all hypothetical, but what about a single turbo diesel V8 or something, as some are seriously strong performers these days? That's if you can get a quiet(ish) one, or small enough to fit in the engine bay.

 

Just a thought. Move along please.

 

As for the topic, I like the idea of the supercharger/turbo option. All the benefits of both, rolled into one, if it's properly possible.

[Scott]

I would go for something like cowboy bebop's build.... only one that worked.

 

Good size V8 with small twins aiming for around 800hp.

[Gaz6002]

I know these are all hypothetical, but what about a single turbo diesel V8 or something, as some are seriously strong performers these days? That's if you can get a quiet(ish) one, or small enough to fit in the engine bay.

 

Why single turbo? A TT V10 TDI would be nice for a few RPM

[AndrewOW]

Why single turbo? A TT V10 TDI would be nice for a few RPM

 

 

I wouldn't turn that down either!

[johnny g]

Why single turbo? A TT V10 TDI would be nice for a few RPM

Sequentials like my 535d

[Gaz6002]

Sequentials like my 535d

 

Not enough cylinders

[Kirk]

I'm going with option 7.

 

VGT twins + high CR and vvti. Virtually lagless turbos and decent power. I wasn't realy sold on the tech at 1st but after just dropping off a turbo to bauer millets I'm well impressed.

[johnny g]

Not enough cylinders

 

I was referring to the V10!

A lovely V10 S/C diesel would be very torquey!

[Gaz6002]

I was referring to the V10!

A lovely V10 S/C diesel would be very torquey!

 

It would, but anyone used to driving a high-powered petrol car would probably hate the power delivery...

[johnny g]

It would, but anyone used to driving a high-powered petrol car would probably hate the power delivery...

You'd like it then

[barneybrendan]

lots of good ideas people seem to have,be good to actualy say stuff it and try what you have in your heads.This thread has now got me thinking of selling the car when its finished and starting on something else damn all of you.

[Gaz6002]

You'd like it then

 

Meh, I may only have 600 horses but I use as many of them as I can

[Nodalmighty]

How about high and low compression. Hinge the head to the block but have the cylinder liners in a casting bolted to the head. Using hydraulics to raise and lower the head about the hinge you get variable compression. Or you could finish off the mayflower engine with it's weird and wonderful hinged hydraulic con rods giving variable capacity as well as compression.

[JamieP]

TBH i really dont see the point, a little lag is no big deal imo, if i wanted faster spooling id just fit an SP quick spool valve, but as i dont, i wont.

 

When i want to drive slowly the off boost driving of the supra is lovely imo, when i want to go fast it goes nuts at the stab of the peddle and never comes off boost unless i want it to.

[johnny g]

TBH i really dont see the point, a little lag is no big deal imo, if i wanted faster spooling id just fit an SP quick spool valve, but as i dont, i wont.

 

That's a subjective statement though, Mr P. What defines lag? How much time? And what is acceptable to one might not be acceptable to another and vice versa, it's a very open question. Realistically though, I like turbos after 3500rpm, so you can drive sensibly off-boost, without pre-spooling like you do in the stock sequentials.

 

What do you define as acceptable, for instance?

[JamieP]

That's a subjective statement though, Mr P. What defines lag? How much time? And what is acceptable to one might not be acceptable to another and vice versa, it's a very open question. Realistically though, I like turbos after 3500rpm, so you can drive sensibly off-boost, without pre-spooling like you do in the stock sequentials.

 

What do you define as acceptable, for instance?

 

As i said mate "imo"

 

Myself i could handle still losing a lot of spool time and it would not bother me, i have a huge powerband, if i lost another 1000rpm off my spool time i could not care less tbh.

[Digsy]

A small but highly stressed petrol 1.8 / 2.0 litre engine highly boosted to make it behave like a 3 litre plus at the top end, with an electric motor to fill in the hole in the torque curve at the bottom.

 

Come on guys, its nearly 2011