RG throttle body mod

RG throttle body mod

Author
Discussion

darkmark07

Original Poster:

702 posts

204 months

Tuesday 16th August 2011
quotequote all
Hi all.

Has anyone purchased the reconditioned units from RG with the roller bearing mod? I believe that Dreadnought also used to offer mods but at closer to £1k than the c. £300 (after exchange) that RG charge.

Am seriously considering this at the moment as mine can be a pig at low revs / small throttle openings a few hundred miles after a service.

As a follow up, are the throttle bodies the same for all FF SP6s?

TIA

Mark

Robertjp

2,281 posts

231 months

Tuesday 16th August 2011
quotequote all
Yeah i bought a set earlier in the year. My TB's were is fairly good condition other than the wear on the spindle holes, which meant i was a little dissapointed with the RG TB's, the adjuster arms and grub screws ahd seen better days.

I had to tap one out to m5 IIRC and put in a larger grub screw before i could get them to balance - one kept moving on a knackered thread.

Having said that, now they are in they have stayed in balance well and not needed any intervantion.

I also replaced both throttle pots to be safe. results were pretty good, much smoother idle when warm and no longer any misfires an light throttle or high RPM under accel.

One thing i have noticed is that, when cold, it idles like a dog with these installed. Once warm, it goes go back to normal. Can only think that because there is much less play in the whole setp-up, when cold there is some misalignment which results in poor airflow, and it all corrects itself once up to temp. Whereas previously there may have been movement and play that allowed the engine to settle, it cant now do so when cold.

Robertjp

2,281 posts

231 months

Tuesday 16th August 2011
quotequote all
darkmark07 said:
As a follow up, are the throttle bodies the same for all FF SP6s?



Mark
Think so....i just told them the year of mine and that was that.

Dont think they changed except maybe in later years when TVR started to use bushes after realising their engineering prowess wasnt quite what they thought it was hehe .

darkmark07

Original Poster:

702 posts

204 months

Tuesday 16th August 2011
quotequote all
Thanks for the detailed reply...

Something to add to the 'winter upgrades' list :-)

Tuscanuwe

323 posts

201 months

Tuesday 16th August 2011
quotequote all
I got a complete set last year from RG.
But now some of them they are worn again, correct mapping was not possible!
I have bought a brand new set!!!!!!!!!!!!!

Be aware, ask for guarantee.

darkmark07

Original Poster:

702 posts

204 months

Thursday 18th August 2011
quotequote all
Thanks for the heads up Uwe...

Was this the reconditioned set with the roller bearings rather than the bushes?

Cheers,

Mark

Tuscanuwe

323 posts

201 months

Thursday 18th August 2011
quotequote all
Pods were only bushed! No roller bearings found!
play was up tp 0.2 mm, i have measured the play!
Was waste of time and money.

Uwe