Vbox and Dragy stats

Vbox and Dragy stats

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RUSSELLM

Original Poster:

6,000 posts

248 months

Saturday 24th April 2021
quotequote all
Who was the engine built by ?

7.7 seconds in excellent.

Mine’s a near enough standard 4.2, but I’ll try and get a run done in June.

gruffalo

7,532 posts

227 months

Wednesday 5th May 2021
quotequote all
I checked mine two weeks ago and including the gear change into fourth it was 7.71 seconds.

not too disappointed:-)

I was concerned that when I went round a bend there was a Scamera van pointing straight at me and have been checking the post for the last 14 days but all seems OK, I did slow down quite quickly as soon as I have hit the desired speed so all looks well.

Jhonno

5,788 posts

142 months

Wednesday 5th May 2021
quotequote all
gruffalo said:
I checked mine two weeks ago and including the gear change into fourth it was 7.71 seconds.

not too disappointed:-)

I was concerned that when I went round a bend there was a Scamera van pointing straight at me and have been checking the post for the last 14 days but all seems OK, I did slow down quite quickly as soon as I have hit the desired speed so all looks well.
Figures as both your cars make similar power.

7.7 is a quick time.. Upsetting some serious machinery there.

Edited by Jhonno on Wednesday 5th May 16:05

Jhonno

5,788 posts

142 months

Wednesday 5th May 2021
quotequote all
RUSSELLM said:
Who was the engine built by ?

7.7 seconds in excellent.

Mine’s a near enough standard 4.2, but I’ll try and get a run done in June.
Andy @ APM

RUSSELLM

Original Poster:

6,000 posts

248 months

Wednesday 5th May 2021
quotequote all
Thanks.

What’s the spec of yours Gruff ?

I was thinking a 4.2 with 360 bhp will be about 10 seconds ?

Jhonno

5,788 posts

142 months

Wednesday 5th May 2021
quotequote all
RUSSELLM said:
Thanks.

What’s the spec of yours Gruff ?

I was thinking a 4.2 with 360 bhp will be about 10 seconds ?
I'd imagine 9-10 maybe.

gruffalo

7,532 posts

227 months

Wednesday 5th May 2021
quotequote all
RUSSELLM said:
Thanks.

What’s the spec of yours Gruff ?

I was thinking a 4.2 with 360 bhp will be about 10 seconds ?
4.7 red rose compression built by STR8SIX.

430 bhp measured at the rear wheels still awaiting the opportunity to get it on the rollers at Suury Rolling Road but the prior runs at SRR say 475BHP would be a fair guess.


Dmw15

14 posts

91 months

Thursday 6th May 2021
quotequote all
I’d have expected faster than 7.71 with 475bhp???

spitfire4v8

3,996 posts

182 months

Thursday 6th May 2021
quotequote all
is there any way to view the results without buying it? we can read the words but not see the results tables - some screenshots of peoples runs would be great biggrin

Jhonno

5,788 posts

142 months

Thursday 6th May 2021
quotequote all
spitfire4v8 said:
is there any way to view the results without buying it? we can read the words but not see the results tables - some screenshots of peoples runs would be great biggrin
I don't think there is.. You need mates with it, to screenshot it for you.. laugh

spitfire4v8

3,996 posts

182 months

Thursday 6th May 2021
quotequote all
please will you be my mate ? hehe

DangerousDerek

8,655 posts

221 months

Thursday 6th May 2021
quotequote all
I might have to get one of these.
I reckon i could crack 100-200 in 7 seconds flat, or very close to it.

gruffalo

7,532 posts

227 months

Thursday 6th May 2021
quotequote all
Dmw15 said:
I’d have expected faster than 7.71 with 475bhp???
That is yet to be proved but I did a map change a few months ago which added 40BHP on the powers Dyno compared to the old map and the old map measured 435bhp at SRR so the 475 is a guesstimate.

I need to see how slow th egear change was as the 7.71 includes the gear change time, i will see if I get time at the weekend to do some more detailed analysis.

gruffalo

7,532 posts

227 months

Thursday 6th May 2021
quotequote all
Dmw15 said:
I’d have expected faster than 7.71 with 475bhp???
Torque is more important for acceleration mine is 405ft/lb measured at the rear wheels on the powers rolling road.

Dmw15

14 posts

91 months

Thursday 6th May 2021
quotequote all
Even so 405lb/ft at the wheels I’d expect the car to do better than 7.71

Unless the dragy run was a bad one I don’t know ??

Byker28i

60,227 posts

218 months

Thursday 6th May 2021
quotequote all
I think the thing that came out of last years SRR session is how strong the 4.7's are

gruffalo

7,532 posts

227 months

Thursday 6th May 2021
quotequote all
Dmw15 said:
Even so 405lb/ft at the wheels I’d expect the car to do better than 7.71

Unless the dragy run was a bad one I don’t know ??
I used a Vbox not Dragy.

RUSSELLM

Original Poster:

6,000 posts

248 months

Thursday 6th May 2021
quotequote all
spitfire4v8 said:
is there any way to view the results without buying it? we can read the words but not see the results tables - some screenshots of peoples runs would be great biggrin
The Dragy app is free Jules.

Once you’ve downloaded, you go into ‘me’, select ‘unit’, then select ‘metric’

Then go to ‘Leaderboard’, scroll down to see the various car manufacturers, and click on one. You might need to select ‘+’ to add TVR from the list.

You can then select 0-100, 100-200 etc from the list.

0-100 (or 0-60 if you go none metric) only has 1 TVR result, an S3.

100-200 only has DMW’s figures, so I presume Gruff hasn’t posted his to the leaderboard or has used vbox etc

If you click on DMW’s Dragy profile, you can see his previous time’s too.

The actual GPS dongle, direct from Dragy, is about £120 delivered.





Edited by RUSSELLM on Thursday 6th May 15:17

spitfire4v8

3,996 posts

182 months

Thursday 6th May 2021
quotequote all
ah thanks for that info i didnt realise the app itself was free. i can remain billy no mates then, phew !

RUSSELLM

Original Poster:

6,000 posts

248 months

Sunday 25th July 2021
quotequote all
Managed a couple of runs, that I’d forgotten about

0-60 is over a second slower than my bog standard 335D . Cerb’s a nuisance to launch though. I had a 4.4 at York Raceway, but I suspect that included rollout.

Crap launch aside, 0-100 mph looks like 10.7 seconds

100-200 is 10.55

Both manifolds are cracked and due to be replaced at the next service.