xb351coupe

Finally had a chance to run my car, I guess the results speak for themself. I guess its not bad for a heavy beast with 248.7 RWHP....This was the first time I've ever been on a track, had trouble getting the power to the ground (to much wheel spin).

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brenx

I gather thats on street tyres. That's about right for the power/weight. For street tyres the 60's ain't bad. Most people run 2.1->2.3+ on them. Well done.

More traction and it'll definately go faster. How much is anyones guess though.

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XB Fairmont (street car) 11.07@123.02mph.

xb351coupe

yep street tyres....sumitomo 295/50/15's.

brenx

If you want to have a laugh? Go punch those numbers into some 1/4 mile calcs etc. You'll see how inaccurate they really are. If your car was a drag car it'd probably add up

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XB Fairmont (street car) 11.07@123.02mph.

xb351coupe

Tell me more !!!! what did you come up with ???

brenx

According to TCI you should have done that time @ 99.22mph. Yet I've done 13.01 @ 97mph? I did it more than once too. Your 1/8 should have been 8.712sec. Ammusing

If your car weighs around 3550-3600lbs and you can run faster than 97mph. A high 12 is possible with the correct gearing. You'd instantly assume the gearings good due to the 101.74mph.

I'll put $ your mph increases with traction. [edit]also providing it doesn't bog down.

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XB Fairmont (street car) 11.07@123.02mph.

STROKEXD

Seems like a great time for a street car with moderate specs - well done.

What are the exact engine specs again? Cam, carb, heads etc..?

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xb351coupe

4MAB Crank
ACL race series pistions with moly rings
Full Balance
Final compression 10.1
Crow hydro cam 224/234 @.050" lift .535/.560 112 lobe seperation
2v closed chamber heads, ports cleaned up (nothing else). harneded seats for ulp.4v valves on exhaust only. Crow double valve springs, k-line guides, crow liferts, moly retainers,collets and push rods. 1 piece stainless steel single grove valves. teflon valve seals, yella terra bolt on adjustable roller rockers.
Weiand X-ellator manifold, barry grant 750DP and 1" spacer.
MSD billet dizzy (8580) MSD HVCII coil (8253) and MSD 6AL - (6420) and MSD leads.
Tri -headers, with dual 2.5" exhaust with turbo mufflers.
Reco FMX with transgo reprogram kit and 3200 Hi Stall.
9" 3.7 ratio with 15 x 10 (295/50/15)

Work Horse

Well done xb351coupe that is an excellent time first time out
With the power you are making, street tyres and standard suspension a 1.9 60ft is a great effort, and probably hard to better without slicks.

The confusion over MPH seems to have continued from your last thread.
Dragstrips measure performance by timing a car across a set distance.
Chassis dynos assist car tuning by measuring changes in power output.
It's when the roles are reversed people get into a flap.
I have gone on about this before, and promised myself I would not get involved in another argument, but everyone knows I'm full of sh*t

falcon coupe

Good result XB351, was it your first time and did you enjoy it ?

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Member of the the Trans Pacific Moderator Tag Team