Modified 981 GT4

Author
Discussion

ChrisW.

Original Poster:

6,386 posts

257 months

Saturday 23rd May 2020
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Snowy999 said:
Really nice Chris are they 20"?

btw have you taken your rear cage out to save another 25kg?
They have to be to fit over the PCCB's ...

I specified the cage and full harnesses for safety reasons, why would I take these out ?

C. Grimsley

1,365 posts

197 months

Monday 25th May 2020
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LaurasOtherHalf said:
Loved a TSW Venom back in the day wink

Slippydiff

14,948 posts

225 months

Monday 25th May 2020
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LaurasOtherHalf said:
Loved a TSW Venom back in the day wink

keo

2,105 posts

172 months

Wednesday 4th November 2020
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Just read this thread through from start to finish. Very interesting, any updates?

BubblesNW

1,710 posts

185 months

Wednesday 4th November 2020
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keo said:
Just read this thread through from start to finish. Very interesting, any updates?
TDT had the performance mods he mentioned and his car is now mega. Races up to 8k revs with no stalling at 5.5k like the standard car.

GTRene

16,928 posts

226 months

Monday 21st June 2021
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someone here already tried this kit out? 560hp NA engine to 4.5L and a better geared gearbox, sounds nice.
yes it cost some, but say, your original engines goes bang at some point, maybe its interesting then?

Also wonder if some other tuners in Europa, offer the same sort upgrade.

https://demanmotorsport.com/4-5l-cayman/

TDT

4,979 posts

121 months

Tuesday 22nd June 2021
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GTRene said:
someone here already tried this kit out? 560hp NA engine to 4.5L and a better geared gearbox, sounds nice.
yes it cost some, but say, your original engines goes bang at some point, maybe its interesting then?

Also wonder if some other tuners in Europa, offer the same sort upgrade.

https://demanmotorsport.com/4-5l-cayman/
Capacity increases are available, from tuners on the continent, and yes attractive option if your original engine needs a rebuild anyway.
Ehresmann has all the options available up to 4.5L…. It was these guys that helped some of the US guys develop their packages, which they have then taken onwards and made their own.

BGB goes up to 4.3L
Deman goes up to 4.5L

Still, there are some pretty good options for the 3.8… with a couple of different flavours for power delivery, dependant upon if your prioritising circuit work or street/auto-cross/hill climbs.

Edited by TDT on Tuesday 22 June 02:06

GTRene

16,928 posts

226 months

Tuesday 22nd June 2021
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Thanks @TDT

indeed, you could first build the 3.8 engine up with some products you also use in the big bore options, say inlet and headers/exhaust etc that gives you more torque and power, so extra fun, and then when it goes, or if it goes, you could do the increasing of cc, the rest you then already have.

edit, indeed they got that already in 2016 some upgrades and 440ps, nice.

https://youtu.be/94P6COIXTHM

Edited by GTRene on Tuesday 22 June 15:51

TDT

4,979 posts

121 months

Tuesday 22nd June 2021
quotequote all
GTRene said:
Thanks @TDT

indeed, you could first build the 3.8 engine up with some products you also use in the big bore options, say inlet and headers/exhaust etc that gives you more torque and power, so extra fun, and then when it goes, or if it goes, you could do the increasing of cc, the rest you then already have.

edit, indeed they got that already in 2016 some upgrades and 440ps, nice.

https://youtu.be/94P6COIXTHM

Edited by GTRene on Tuesday 22 June 15:51
Yep, a few of us have started to play with 981 GT4/Spyder.

I guess one school of thought though is to not bother with the interim bolt-ons and just do everything in one big bang.... you'd be avoiding a double spend in some area for labour and time of having the car in the workshop and/or engine out.

Edited by TDT on Friday 6th August 23:17

ChrisW.

Original Poster:

6,386 posts

257 months

Saturday 4th June 2022
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Thread resurrection, thanks Tyrone !

In the end I removed the Titanium lugs ... I found that at 120 Lb Ft they squeeked on torquing up and when wheels were changed small slivers of thread material could be seen ... not good.

So I went back to steel ...

ChrisW.

Original Poster:

6,386 posts

257 months

Saturday 4th June 2022
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These images are numerically successive, but I can't see how ? Maybe the golf was just catching me up ? smile

Edited by ChrisW. on Saturday 4th June 21:06