gt3 upgrade??
Author
Discussion

kleonard

Original Poster:

767 posts

251 months

Wednesday 31st August 2005
quotequote all
hi.. thinking of upgrading my gt3 mk1.. would a trip to manthey racing for the 400 kit make it much quicker than standard...? also is there a dealer in england that can supply the kit.. to save the long drive to germany...?

atticus

100 posts

258 months

Wednesday 31st August 2005
quotequote all
I thought i read in GTPP tht JZM have a joint venture with Manthey over here with some of their products - give them a shout:

www.jzmachtech.com

flemke

23,437 posts

264 months

Wednesday 31st August 2005
quotequote all

JZM definitely do the entire Manthey range. They are Manthey's representative in the UK.

Glenn McMenamin

2,305 posts

265 months

Wednesday 31st August 2005
quotequote all
kleonard said:
hi.. thinking of upgrading my gt3 mk1.. would a trip to manthey racing for the 400 kit make it much quicker than standard...? also is there a dealer in england that can supply the kit.. to save the long drive to germany...?




JZ Machtech in Kings Langley are the dealer for the Manthey kit in the UK
They did the upgrade on my MKII, and on Zanzibars (ph'er) MKI.

This will make a difference, but i would say more noticable on the road rather than ont the track, as the biggest increase in power is lower down the rev range.

Any more info, send me a PM and be glad to help.

G.

domster

8,431 posts

297 months

Wednesday 31st August 2005
quotequote all
AmD do 400bhp normally aspirated in a GT3.

www.amdtechnik.com/products.variant.cfm?variantid=91

They did the yellow ex-press car GT3 Mk2 with results provable on dyno (401bhp) and on track (quicker than a GT3RS at Bedford allegedly!).

Hope that helps.

ATB
Dom

Glenn McMenamin

2,305 posts

265 months

Wednesday 31st August 2005
quotequote all
domster said:
AmD do 400bhp normally aspirated in a GT3.

www.amdtechnik.com/products.variant.cfm?variantid=91

They did the yellow ex-press car GT3 Mk2 with results provable on dyno (401bhp) and on track (quicker than a GT3RS at Bedford allegedly!).

Hope that helps.

ATB
Dom



This car is owned by a guy called Russell, and i know him quite well, i think his car is pushing just over 400+bhp, and goes very well.

Just to let you know, mine dyno'ed at 417.6 bhp 3x weeks ago, so the Manthey figures are conservative.





G

steve rance

5,453 posts

258 months

Wednesday 31st August 2005
quotequote all
I have Driven both AMD and JZM conversions. Both are good but the JZM car is quicker through better chasis balance. I overtook the AMD car at Bedford driving Russel's Zanzibar JZM converted MK1 which has engine and suspension upgrades. The AMD car is certainly not as quick as a well sorted GT3RS, a good 2 - 3 seconds slower around Bedford. If you are serious about track work, look at the JZM engine upgrade with the Parr motorsport suspension package, it gives more ultimate potential. I have driven the Parr engine upgrade at Spa and that was impressive, but I'm unsure if it is in production yet.

If you do have a power upgrade, I would advise chasis upgrade to match it if you are tracking the car. The increased torque from the engine can cause problems as the rear drops as power is applied leading to understeer after turn in and on exit.

Steve R

domster

8,431 posts

297 months

Wednesday 31st August 2005
quotequote all
Thanks for clarifying Steve. I think I was getting confused, as I'm sure you were the wheelman testing the AmD car at Bedford I was thinking of.

ATB
Domster

shortshiftin

83 posts

251 months

Wednesday 31st August 2005
quotequote all
I'd have thought half the fun in having a Manthey car waould be the drive out to the ring... then you could do some pre upgrade laps and post upgrade laps!

murcielago_boy

2,014 posts

266 months

Wednesday 31st August 2005
quotequote all
Glenn McMenamin said:

domster said:
AmD do 400bhp normally aspirated in a GT3.

<a href="www.amdtechnik.com/products.variant.cfm?variantid=91">www.amdtechnik.com/products.variant.cfm?variantid=91</a>

They did the yellow ex-press car GT3 Mk2 with results provable on dyno (401bhp) and on track (quicker than a GT3RS at Bedford allegedly!).

Hope that helps.

ATB
Dom




This car is owned by a guy called Russell, and i know him quite well, i think his car is pushing just over 400+bhp, and goes very well.

Just to let you know, mine dyno'ed at 417.6 bhp 3x weeks ago, so the Manthey figures are conservative.





G





417.6 BHP!!!!!!!!!!

Glenn - what does this upgrade consist of? Do let us know.

Glenn McMenamin

2,305 posts

265 months

Wednesday 31st August 2005
quotequote all
murcielago_boy said:

Glenn McMenamin said:


domster said:
AmD do 400bhp normally aspirated in a GT3.

<a href="www.amdtechnik.com/products.variant.cfm?variantid=91"><a href="www.amdtechnik.com/products.variant.cfm?variantid=91">www.amdtechnik.com/products.variant.cfm?variantid=91</a></a>

They did the yellow ex-press car GT3 Mk2 with results provable on dyno (401bhp) and on track (quicker than a GT3RS at Bedford allegedly!).

Hope that helps.

ATB
Dom





This car is owned by a guy called Russell, and i know him quite well, i think his car is pushing just over 400+bhp, and goes very well.

Just to let you know, mine dyno'ed at 417.6 bhp 3x weeks ago, so the Manthey figures are conservative.





G






417.6 BHP!!!!!!!!!!

Glenn - what does this upgrade consist of? Do let us know.



I'm not technical, but i think it's.....


New headers, 100cell cats, back boxes+exhaust, K+N air filter, and a re-map.

Yep, think that's about it.

Sounds lovely too !!!


G.

s3am

1,383 posts

279 months

Wednesday 31st August 2005
quotequote all
Glenn,

Just out of interest how do you get on with various circuits' noise regulations?

Regards

Sam

porschegeoff

213 posts

271 months

Wednesday 31st August 2005
quotequote all
Steve Rance said

I have driven the Parr engine upgrade at Spa and that was impressive, but I'm unsure if it is in production yet.

I was in Parr's recently and they had some details of their engine upgrade. This consists of:-

1.Tuned length manifolds

2. Performance centre exit silencer with 100 cell cats

3. Carbon fibre replacement bumper (including painting).

4.ECU re-map

5.Pipercross high flow replacement filter.

Power increase = 30-35 Bhp (minimum).

They also quote a useful weight saving of between 30 and 30Kg depending on whether a Mk1,2 or RS. Cost = £4995 including parts & labour but excluding VAT. I think that's a fair bit cheaper than the JZM Manthey upgrade.

Geoff

joe911

2,763 posts

262 months

Wednesday 31st August 2005
quotequote all
porschegeoff said:

1.Tuned length manifolds
2. Performance centre exit silencer with 100 cell cats
3. Carbon fibre replacement bumper (including painting).
4.ECU re-map
5.Pipercross high flow replacement filter.
Power increase = 30-35 Bhp (minimum).

They also quote a useful weight saving of between 30 and 30Kg depending on whether a Mk1,2 or RS. Cost = £4995 including parts & labour but excluding VAT. I think that's a fair bit cheaper than the JZM Manthey upgrade.

So that weight saving is from the replacement bumber alone - hell fire, that's a heavy standard bumper!
And they don't improve the suspension, shame - the Manthey setup is awesome.

stefan1

987 posts

259 months

Wednesday 31st August 2005
quotequote all
I'd also heartily recommend the Manthey set up - I have a fairly comprehensive set of modifications - engine (430 hp), suspension, top mounts, brakes (this time by Parr), aerodynamics.

Suffice it to say, it is fantastic. It is now also well proven with dozens of cars running the modifications. My car has done 20,000 miles since the engine mods with no trouble.

JZ are good, but if you have the time, I'd take the car to Manthey direct.

Rgds

Steve

robin c

89 posts

309 months

Thursday 1st September 2005
quotequote all
Replacement (cupcar) bumper is needed for centre pipes. Most of this weight saving will be in the exhaust. Parr do the JRZ suspension upgrade, but it's additional to the price quoted by Geoff.

Robin

Glenn McMenamin

2,305 posts

265 months

Thursday 1st September 2005
quotequote all
s3am said:
Glenn,

Just out of interest how do you get on with various circuits' noise regulations?

Regards

Sam


This is the only downside, as it is very noisy......


G.

zanzibar

234 posts

266 months

Thursday 1st September 2005
quotequote all
While I am really pleased with the Manthey K400 engine upgrade on my MK1 it has not missed a beat!{on the dyno it gave 390bhp 318lbft torque} with the prices of Mk2's & RS's heading South it's does not make economical sense to upgrade the early cars anymore IMO.

ninemeister

1,146 posts

285 months

Thursday 1st September 2005
quotequote all
Now that we have the 964/993 nearly sorted (new headers & intake should have it at 425bhp) our attention will be switching to the GT3 engine soon.

The planned package will include valve train, cylinder heads, pistons & rods for an initial target above 450bhp. We have aquired a fresh GT3R engine to use as a dyno mule with the intention of fitting the development parts into our own mk2 GT3 for testing. Expect to see results early 2006.

You heard it here first (thanks Ted)!

murcielago_boy

2,014 posts

266 months

Thursday 1st September 2005
quotequote all
I bet the car sounds awesome... Glenn don't be surprised to find a comfort-spec replica of your car. Mine speed yellow and I've got black rims too mate... SORRY!!

Nik.