Which supercharger for the 2002 V2 Monaro

[CV8MAD]

OK....I owe a big thanks to all. The fact that my head is spinning with stuff I couldn't imagine this morning when I woke up is freaking awsome.

http://www.ls1.com.au/forum/garage_a...ent.php?id=102 . Thats a pic about a month ago.

I think after this discussion with you guys today...It's going to be a "before torn" shot.

[v8fazz]

The Whipple kit for under $10K - http://www.ebay.com.au/itm/160984264...84.m1438.l2649

Anyone actually have this kit on a standard or cam'd LS1?

Sincemost people recommend the Mag or Harrop 1900 for a standard stroke LS1 and the Whipple is a 2400 I was wondering what sort of results people were getting with the larger Whipple.

Always seem to be thinking about FI these days as well.. Still trying to make a decision between turbo and PD blower and as much as people recommend the 1900, the Whipple kit certainly "looks" sweet so definately interested in hearing from people who have it installed

[CV8MAD]

That v8fazz....is what’s on my mind except the turbo part. Have talked as stated earlier to YT, still waiting for some response there. PIP around Aus. has suggested maybe a quality of parts issue. E.g. some may contain plastic compared to fab. The truth of it all I'm happy to spend a few $$$'s. It is a long term investment. In return I want guaranteed descriptions. I do favour YT in my mind for choice, and I truly wish to use their product. Massive issues if you want information. I have asked YT for Newcastle installers...no response. Hard on internet searches.

Harrop...these guys are 2k's from my work they do brakes, etc. Every time I pick up a phone they are there....thanks to their HTTP


This is why I've come here… like you I want feedback from people who have gone thru this.

[v8fazz]

Ive always liked the idea of a PD blower but also you see some great results from turbo(s) as well, although I think I would always lean towards a blower when the time comes!

Both have their pros and cons so its a matter of weighing whats right for me and what I want from the car. Same again if choosing between single / twin turbo(s), or 1900 / 2300 / or Whipple 2400 PD blower. And I also have to take into account being in Nth Qld (hot!!) I will be seeking professional advice from my friends at HDTCQ for the install when I go through with it but what ever I choose its important for me to have room for more later down the track. My plan would be to enjoy the LS1 until it dies (without going out of my way to kill it..) and then rebuild with a strong bottom end that can handle extra boost, with the possibility of a 383 crank thrown in for good measure! But then you also often see 408 short motors from the likes of c.o.m.e racing on special so theres another option when the LS1 gives up, but needing even more room for improvement for the chosen blower or turbo(s)

In the end it could just come down to whats on sale or available at a good price at the time. Can anyone say "end of financial year special?" Hint hint Harrop and YT!! :P

[CV8MAD]

So.......No offence to turbo guys, I like blowers no offence if you are superior or not. At the end of the day this is MY STRING. I'm not discussing 1 but 2 different superchargers. I'm sure there are threads concerning "turbo". HOWEVER this, I'm afraid this is not it.

[v8fazz]

Gee CV8MAD, I didnt realise I actually told you to forget the blower and get a turbo. Im definitely not "a turbo guy" and if my eyes dont deceive me, I actually said that I would "lean towards a blower when the time comes"

I was just making the point that no matter what road someone goes down, or what form of FI they choose, there is a hell of a lot to take in to consideration, especially if you want to allow room for more power later down the track.

But seriously - So sorry to trash "your string" with that potty mouth "T" word but dont worry, it wont happen again as I will keep my thoughts to myself from now on so I dont provoke anymore stupid PM's from you, which I deleted by the way..

Good luck mate, and welcome to the forum.

[CV8MAD]

Sorry v8fazz to go so stupid. Must take note not to drink and post, very embarrising to read next day.

[v8fazz]

Appology accepted mate, drinking and posting can have its dangers!

The Harrop and YT PD blowers are high on my list of possibilities and theres plenty of info on here about the Harrops but not a lot of info from people who have first hand experience with the YT, especially on an LS1 so Im keen to hear peoples results as well.

Cheers.

[v8fazz]

So to keep this thread moving along as Im also interested in hearing from anyone who has gone down this path, has anyone here fitted the YT kit to a standard stroke LS1, either stock standard or with cam?

Or is the general opinion along the lines of - even though a kit is offered to suit the LS1, its not an ideal situation as the blower is to large? What would the max engine size / kw rating be for the Mag or Harrop 1900 blowers?

Cheers.

[Evman]

With intentions to return to stock one day I'd definitely be doing an engine transplant. Going a blower risks blowing up your motor. Worst case scenario is you'll punch a rod and your block will be destroyed, and there goes any chance of matching numbers. 400rwhp is easy from a cammed L98 these days. I ended up doing a cammed L98 transplant, then supercharged that

[v8fazz]

I think Evman and white lie have made good points about an engine swap or transplant in your case CV8MAD. Even finding another LS1 to slot straight in could be an option and you could then bolt on the blower without fear of killing your original motor.

For most people (myself included) Id imagine engine damage from pushing it to hard would be the perfect excuse to rebuild it stronger so it can handle even more, but if you think you will want to return it to standard one day its something you should consider.

I too love the look and 'cool' factor of the Whipples but I just know that Jez will tell me that the 2400 or the Harrop 2300 is to big for an LS1 and to go with the Harrop1900!

[Evman]

If you go a 1900 you'll need to change the drive pulley to get anything above 6psi. I don't know what a 2300 with a stock pulley would push on an LS1, but it wouldn't need to be overdriven to achieve boost levels above 6psi. Whether or not running a higher boost pulley on the 1900 is detrimental at all I'm not sure, it all depends on the efficiency range of the blower. It could well be that an overdriven 1900 becomes less efficient, where the 2300 would make similar numbers but stick to an RPM that it's within the efficiency curve. That's a question for someone like Ken who has been heavily involved with the development of a lot of blowers.

Regardless, I'm running a 1900 with a smaller drive pulley to make just over 10 psi at max RPM. For reference as well, my blower pushes over 8psi from 2700rpm all the way up.

[white lie]

My understanding is that the bigger blower will have the capacity to move more air but this doesn't necessarily mean more boost in the cylinder.

I think the boost levels with the standard pulleys will still be around the same, whether it be a 1900 or 2300. I'm sure there's a reasoning for supplying them with a 6PSI pulley but everyone I know of changes overdrives them (front or rear pulley) to provide more boost. They aren't very breathtaking with the 6PSI pulley, i'll tell you that much. I was disappointed in mine after a day!

[v8fazz]

What engine is your 1900 on Evman?

White lie - is yours the 1900 or 2300 and on what engine? But yeah, 6 psi wouldnt cut it as far as Im concerned!

The op said he was only chasing about 320 rwkw so maybe the 6 psi pulley is all he would need?

If I go down this road I'd be looking for 375 rwkw give or take with cam and fuel system so Im guessing I would need 8 - 10 psi. Is there any warantee issues with Harrop from changing pulley and running more boost? .

[IJ.]

My understanding is that the bigger blower will have the capacity to move more air but this doesn't necessarily mean more boost in the cylinder.

I think the boost levels with the standard pulleys will still be around the same, whether it be a 1900 or 2300. I'm sure there's a reasoning for supplying them with a 6PSI pulley but everyone I know of changes overdrives them (front or rear pulley) to provide more boost. They aren't very breathtaking with the 6PSI pulley, i'll tell you that much. I was disappointed in mine after a day!

"Boost" is just resistance to flow, at the same drive ratio the 2300 will make more boost as it displaces more volume per revolution as you're tying to push this volume into a set displacement engine, if the engine had a tight LSA cam it would push more Air through the engine and out of the exhaust so it might not be the expected rise in boost pressure.

2300 can be turned slower to make the same boost as the 1900 the benefit will be lower charge temps, the argument used to be doing this puits the blower under it's peak efficency range but I really don't see that as it's still going to require a 2.47:1 drive to make 1bar of boost so at highway cruise the blower will be turning at 5100rpm and at 6000 crank it's doing 14820rpm, not exactly "slow".