Roygarth

[QUOTE]Originally posted by Christer:
[QB]why, what are you going to do with them? <img border="0" title="" alt="[Wink]" src="wink.gif" />

Piers, the pictures are at <a href="http://community.webshots.com/user/odegaard964" target="_blank">webshots</a>

Basically I've pretty much decided to keep my 964 for a while and therefore I'm thinking of 'performance enhancements'. Cars booked in at JZM 5.2.03, if my worries re. clutch, top end etc etc are unfounded, I and my wallet may be in the mood for more RWHP!

I've come to the conclusion that I'm more of a 'point and shoot' than a cornering on the limit type of driver! So 'grunt' appeals more than lateral G increasing suspension mods.

You would appear to have got a good £/HP result!?

BR
Piers
PS is current JZM labour rate £50 inc. VAT?!

Randall G.

Hey Christer,

Impressive results. Who woulda' thought the hype was real?

Have you heard/seen the installed exhaust in person yet?

<img border="0" alt="[cheers]" title="" src="graemlins/beerchug.gif" />

Christer

Piers, I wouldn't say the bang for buck was that impressive. Some people may prefer the Mass Air route. Total cost of the exhaust including fitting is running at £2k or so. The reasons I did this was that I didn't want to decat, de-primary muffler etc. etc. with lots of different manufacturers at some cost and gain nothing. I would rather go the whole hog and do it 'right' - if you can describe what I have done as 'right'?

Randall, I will pick up the car tonight and the drive home is around 60 miles so will be able to give some impressions tomorrow. Apparently so far there are no resonances or anything like that. JZ Machtech have confirmed the weight loss at 22kgs. I think I just need to get the 'drop' from the muffler ot the tip reduced but GHL may be able to help with that.

I will be able to get a WAV file or even video clip with sound on my digital camera although I would need to post the file somewhere? In addition, the ride height will be somewhat lower so will get some contrasting pics together...

Thinking about it, as the car will be corner balanced I guess should be able to tell what the car actually weighs...?

p.s. Yes, the hourly rate at JZM is now £42+VAT. It was £36 last year. I am going to tell Jonas that I would advise against raising it further (as I am a large shareholder now due to the amount of money I have thrown their way over the last 14 months <img border="0" title="" alt="[Wink]" src="wink.gif" /> )

johnfm

How many hours for the corner balance?? I've just been quoted a further three hours for corner balance on top of 7 hours for suspension swap & alignment.

I'm surprised it takes 3 hours to corner balance a car.

Christer

John

JZM quote a flat price to install, align and corner balance a suspension kit. I think it was something like £350+VAT - which I guess equates to about 8 hours total. I think if the place wants 3 hours on top for corner balancing then they are taking the car somewhere else to do that?

Anywa, must be off to pick up the car. Hopefully the exhaust will not fall off the car on the way home...

Riccardo

</font><blockquote><font size="1" face="Verdana,Tahoma,Arial,Helvetica,Geneva">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva">Originally posted by Christer:
<strong>Yes, the hourly rate at JZM is now £42+VAT. It was £36 last year. </strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva">The sneaky bastards! They used to have one of the cheapest hourly labour rates, I assume their plan was to slowly raise that once public opinion saw them as good value...

Must be the financing of their new shop and the purchase of those alignment machines.

schubee

Christer,

What size muffler tip did you go with? I talked with Brian at GHL and requested that they cut the tip at an angle. I might go with the 4" tip but I'm undecided. Exactly what issues do you have with the exhaust tip? Fit, angle of exit, length of tip showing? I would like to sort this out with GHL before shipment. Your response is greatly appreciated.

Thanks,

Ruairidh

</font><blockquote><font size="1" face="Verdana,Tahoma,Arial,Helvetica,Geneva">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva">Originally posted by Christer:
<strong>

Randall, I will pick up the car tonight and the drive home is around 60 miles so will be able to give some impressions tomorrow. Apparently so far there are no resonances or anything like that. JZ Machtech have confirmed the weight loss at 22kgs. I think I just need to get the 'drop' from the muffler ot the tip reduced but GHL may be able to help with that.

</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva">Exciting news - let us know how it goes!

tonytaylor

Christer,
I`d say that 23rwhp from an exhaust system is pretty impresive (without a rechip as well)
If JZ have a noise meter I`d be interested in the Db your system produces at say 4750 revs (which is about the level they run at most track tests)

BrokeAss

</font><blockquote><font size="1" face="Verdana,Tahoma,Arial,Helvetica,Geneva">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva"><strong> I think if the place wants 3 hours on top for corner balancing then they are taking the car somewhere else to do that?</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva">3 Hours for corner balancing isn't exactly highway robbery and sounds like a fair estimate to me. Although it's not a difficult process, it is time consuming.

Say the tech has to make an adjustment at one corner of the car - the three remaining corners all change as well. To do the job "right" - he'll spend a lot of time making adjustments and watching how that change "echos" across all the other corners.

Just a note - ask the shop to put some kind "ballast" equivilant to your weight in the driver's seat. That way the weight of your **** won't throw the corner balancing out of whack when you're in the car.

graham_mitchell

Christer, just wanted to say I am thoroughly enjoying your upgrade thread. Keep up the good work, and hope your drive home was a success!

pzull

"I will be able to get a WAV file or even video clip with sound on my digital camera although I would need to post the file somewhere? In addition, the ride height will be somewhat lower so will get some contrasting pics together..."

You can host the video and sound file at <a href="http://www.singlereel.com" target="_blank">www.singlereel.com</a>
Currently it looks like they only support .mov but if you need to have your files converted I could help out.I've got my exhaust sounds there.

Christer

I am not sure whether I should start a new thread, as there is a lot I wanted to say. How about we go exhaust first? I just want to correct the power figure quoted last night - the gain was actually 23FWHP which according to their dyno equates to 14RWHP. I don't know why their dyno made the correction so high, but I did notice that the barometric pressure had gone down from 1021mb to 970 odd (between first and second run)- the temp was very similar. I don't know how lower pressure makes a difference to the power an engine makes? Anyway, more than happy in that respect, the torque is up to an even 250lb ft. I will see if I can scan the graphs.
Now on to the sound of the exhaust. Most of the guys at JZM liked it. Phil McHale said that he was very surprised to find an exhaust that made the 964 sound good, he really liked it. He likened it to a cross between a 73 RS and a 964. I have never heard one of the former in the flesh so I cannot comment and will give you my opinion:
When the car is idling, the new exhaust is louder and deeper with a slight 'wuffle' - it sounds angrier for the want of a better word. Inside the car the exhaust is slightly louder, but not as loud as you might expect. When you drive it using the full rev range, the exhaust is harder-edged (if that makes sense) and has a very slight whine to it at certain times, and the overall note has changed. I will get some wav files up for it, but make no mistake, the GHL system is certainly louder than stock. To answer Tony Taylor's point about noise limits, the exhaust seems to be a little quieter at 4000rpm upwards - I don't know if this is because it just seems that way as you get more mechanical noises in the background or whether the flow characteristics change - or maybe both. If I can get quality wav files up you can hear for yourself - or just come and hear it in the flesh!
Overall, I think I may have narrowed down the potential buyer group with the exhaust, as it is louder and some people definitely do not like that. To me, it enhances the flat-six sound whilst not being much louder inside the cabin, so I am happy.

Christer

H&R coilovers.

In the excitement of listening to the exhaust last night, I barely noticed for the first hundred yards that I had actually installed a suspension kit. After I made the effort of removing the 'GHL open-mouthed in amazement look off my face', I noticed that the suspension is significantly (i.e a lot) stiffer. Anyone that has been to JZM will know that the road from there down to the M25 is not the best of roads, but the coilovers are actually a little more comfortable over the small bumps than my original suspension. After this, the next 50 miles was on the motorway/highway so I didn't expect it to feel very different. I was wrong. I kept over-correcting the steering at speed, as the car was now reacting instantly to input, so even round the sweeping bends of the M25 at 90-100mph I was turning the wheel too much to allow for the very slight 'drift' or vagueness of the old suspension. It actually made me laugh. I didn't know that we instinctly do these things without noticing or thinking about it. I don't have the suspension setup yet from JZM, but I don't think I have got much more than 0.4 neg camber in front so the car is hugely stable, but the reaction and turn-in is stupendous (well at least compared to before). When cornering quite hard, the old suspension would definitely 'wallow' - especially in the rear. When I say wallow I mean that the car didn't seem to want to settle down to a constant attitude through a turn. Now, the car is flat and stable. I just think the car feels smaller and lighter, and of course feistier and angrier with that exhaust. Overall I am very pleased. And it looks like the RS bars are going back - at least we know that there is at best a potential problem and at worst impossible to fit these bars - Jeff C will try to help me come up with suggestions for the fitment (I hope you slept yesterday, Jeff) - but bottom line is JZM couldn't figure out how to do it, so you have been warned! I will keep you updated on any progress there.

Christer

</font><blockquote><font size="1" face="Verdana,Tahoma,Arial,Helvetica,Geneva">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva">Originally posted by schubee:
<strong>Christer,

What size muffler tip did you go with? I talked with Brian at GHL and requested that they cut the tip at an angle. I might go with the 4" tip but I'm undecided. Exactly what issues do you have with the exhaust tip? Fit, angle of exit, length of tip showing? I would like to sort this out with GHL before shipment. Your response is greatly appreciated.

Thanks,</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Arial,Helvetica,Geneva">John, the muffler tip I have seems to be about the same guage as the exhaust....I am not sure. The tip is cut at an angles looks pretty good to my mind but I am pretty sure it is not a 4inch tip - maybe 3. I will post pictures next week. There is not a huge problem witht he tip at all, I have found out that the ROW cars have a different bumper to the US cars, and it seems that the 'drop' from the muffler (mounted longitudinally at the rear) is little too much on a ROW car (I may be wrong here so don't quote me) . So the result is that the exhaust is hanging maybe an inch below the exhaust aperture in the rear bumper. Now I have seen it, I don't think this is a bad thing, as the tip is single skin and may therefore melt the bodywork possibly if it was touching. It could do with being maybe 10mm higher on my car, but I am not bothered by it at this stage. Besides GHL have offered to manufacture anything that will make it 'perfect'. Angel of exit and all that seems fine, but I have only seen it in the dark - again pics will be posted.

One word on the fitment as far as putting it together. On my car the exhaust was assembled (loosely) but once the bolts were fully tightended at the header end, the system would pull slightly apart and cause it to blow at either of the 2 small pipes at each side. JZM managed to resolve it by using a small amount of sealant. I talked to GHL about this and they have apparently dispatched much sturdier clamps and JZM agreed that this will probably do the trick. Get the sturdy clamps the first time!

Hope that helps.

P.S. Be aware that the fitment of the GHL system requires removal of the heat shields.