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dbv8
Original Poster
815 posts
47 months
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I know that a healthy 450 or 500+ Chim can hit the rev limiter in 5th but im wondering what is the highest speed thats been recorded at events such as fighting torque, vmax and similar.
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Zippee
5,922 posts
61 months
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I had my old 400 up to a GPS recorded (and speedo) 152 on the straight at a Marham track day. Felt very light on the front end and not particularly safe!
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dbv8
Original Poster
815 posts
47 months
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152 in a 400! thats impressive.
Im aiming for 170 next year. I think i will have the power but guess i may need some aerodynamic aids sorting.
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Chimpaholic
80 posts
6 months
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dbv8 said: 152 in a 400! thats impressive.
Im aiming for 170 next year. I think i will have the power but guess i may need some aerodynamic aids sorting. 152 that must have been fun, you clearly have balls of steel. I had my 4.0HC up to 134 yesterday and it also started to feel a bit light at the font end. Made me smile though. Perhaps strapping a fat bloke to my bonnet will help balance things out as there is already one further back in the driving seat. Mod edit to remove info
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dbv8
Original Poster
815 posts
47 months
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Chimpaholic said: Perhaps strapping a fat bloke to my bonnet will help balance things out as there is already one further back in the driving seat. You know me too well. Have we met?  Besides im on a diet! 
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Steve in Stoke
372 posts
11 months
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A brief, very brief, GPS indicated 142, with about 500-750rpm to the Rev Limit. I wasn't studying the tacho too closely strangely enough! It did not feel stable at all though, and the n/side corner of the bonnet was lifting quite a bit.
I have no plans to repeat or better the exercise without the aid of a rolling road!
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Stevie Mojo
866 posts
64 months
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Chimpaholic said: dbv8 said: 152 in a 400! thats impressive.
Im aiming for 170 next year. I think i will have the power but guess i may need some aerodynamic aids sorting. 152 that must have been fun, you clearly have balls of steel. I had my 4.0HC up to 134 on the A/M40 yesterday and it also started to feel a bit light at the font end. Made me smile though. Perhaps strapping a fat bloke to my bonnet will help balance things out as there is already one further back in the driving seat. Must be quite uncomfotable having a fat bloke on your driving seat? Have you considered getting that looked at?
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Hughesie
10,445 posts
109 months
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verified 156 @ Vmax still pulling...
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Zippee
5,922 posts
61 months
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Chimpaholic said: dbv8 said: 152 in a 400! thats impressive.
Im aiming for 170 next year. I think i will have the power but guess i may need some aerodynamic aids sorting. 152 that must have been fun, you clearly have balls of steel. I had my 4.0HC up to 134 on the A/M40 yesterday and it also started to feel a bit light at the font end. Made me smile though. Perhaps strapping a fat bloke to my bonnet will help balance things out as there is already one further back in the driving seat. Thats the one advantage of a very long, very wide runway - it gives you a little confidence theres nothing to hit. The front end really did feel disconnected though and I'd not have liked to have to steer in any way!
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dbv8
Original Poster
815 posts
47 months
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Hughesie said: verified 156 @ Vmax still pulling... Justin, im guessing vmax is a standing mile? Thats a good terminal speed. Modified?
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450Nick
1,928 posts
39 months
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If the Chim is set up correctly, it shouldn't go light at the front... Mine doesn't, even at the limiter in 5th @ just under 160. I've hit 160 a couple of times, and although its rather loud and the wind noise is significant, it wasn't that bad at all... (With no front splitter). The Griff, on the other hand should go light at the front, owed to the angled back radiator as opposed to the Chim's upright one. This acts as a rudimentry wing at high speed and pushes the front up. Furthermore, the Griff's rear end is shorter than the Chim's, which creates some turbulance at the rear. After speaking to SC-Power about the possibility of some aero mods for the Chim, similar to their Griff ones, I was surprised to hear that (due to the points above) they aren't going to make any as the Chim doesn't need them. It is a far more aerodynamically stable car than the Griff. Consequently, a nicely set up one should be fine at 170  You will need to get creative with your choice of diff though, as the BTR in Griffmeras comes with the longest ratio that they do. To lengthen the gears, you'll need to either go with a custom Quaife ATB with modified ratios, or change the gearbox. Post supercharger, mine feels too short in the gears, but I'm not going to change as it appears to be a real PITA to do so!
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thainy77
689 posts
25 months
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Chimpaholic said: I had my 4.0HC up to 134 on the A/M40 yesterday and it also started to feel a bit light at the font end. Surely you mean leptons?
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dbv8
Original Poster
815 posts
47 months
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450Nick said: If the Chim is set up correctly, it shouldn't go light at the front... Mine doesn't, even at the limiter in 5th @ just under 160. I've hit 160 a couple of times, and although its rather loud and the wind noise is significant, it wasn't that bad at all... (With no front splitter). The Griff, on the other hand should go light at the front, owed to the angled back radiator as opposed to the Chim's upright one. This acts as a rudimentry wing at high speed and pushes the front up. Furthermore, the Griff's rear end is shorter than the Chim's, which creates some turbulance at the rear. After speaking to SC-Power about the possibility of some aero mods for the Chim, similar to their Griff ones, I was surprised to hear that (due to the points above) they aren't going to make any as the Chim doesn't need them. It is a far more aerodynamically stable car than the Griff. Consequently, a nicely set up one should be fine at 170 You will need to get creative with your choice of diff though, as the BTR in Griffmeras comes with the longest ratio that they do. To lengthen the gears, you'll need to either go with a custom Quaife ATB with modified ratios, or change the gearbox. Post supercharger, mine feels too short in the gears, but I'm not going to change as it appears to be a real PITA to do so! I will be on Nitrons with 3 way rears so i should be able to set it up nicely. I am looking into stretching the diff maybe to 3.08 but if thats not sorted then i already have about 6% extra in the Mickey Thompsons that are 26.1" dia. I also intend to open up the rear inner arches as much as possible while the bodies off so i can fit 28" tyres if i wish. These will give me over 13% extra gearing over standard so i think the 170 is achievable
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Roop
4,623 posts
111 months
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152mph in dad's old prototype 4.2
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philmccann
334 posts
27 months
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Had my Chim 400 up to just over 130. Quite enough for me, however, there was some left.
Cheers
Phil
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glow worm
2,044 posts
54 months
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Derek, These guys obviously need the top end of the M6 as a test track...My last court case was in Applebey Magistrates... 5 points only , luckily.... 
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MrFlibbles
4,724 posts
110 months
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dbv8 said: Hughesie said: verified 156 @ Vmax still pulling... Justin, im guessing vmax is a standing mile? Thats a good terminal speed. Modified? I *think* VMAX is a 2 mile straight from a rolling start.
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Chimpaholic
80 posts
6 months
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thainy77 said: Chimpaholic said: I had my 4.0HC up to 134 on the A/M40 yesterday and it also started to feel a bit light at the font end. Surely you mean leptons? What are leptons? Sorry I am a bit new.
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SP6 Animal
2,227 posts
37 months
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Chimpaholic said: thainy77 said: Chimpaholic said: I had my 4.0HC up to 134 on the A/M40 yesterday and it also started to feel a bit light at the font end. Surely you mean leptons? What are leptons? Sorry I am a bit new. Another word for speed=MPH
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so called
1,173 posts
36 months
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I had 155 on the clock on the A7 in Germany but I suspect there was some optimism in the clock, although the Audi A8 did eventualy get out of my way.
Next day I found the front nearside disc was cracked and the off side brake hose had been cut and sealled !!!!!!!!
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