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Do you mind sharing a little more info, that's impressive #s for W2 unported. 1.36 x 137 = mid 9s ? is that motor only.

71 Valiant 416 indy heads bullet solid roller 4spd 833 trans 4.88s 29.5 M/T 1/8 track I ran a 1.43 60' 6.58 @ 107.65 mph ( Air port ) 1/4 mile track 1.40, 1/8th 6.32 @108 1/4 9.99 133.8 (Also Air port but better track )

Ya you can't pull very long in third gear you just get going to fast for the street, 100 + mph in sec,s, I am a lot more use to it now, and a little more daring, but ho needs to loose there car to the in pound.:banghead:

Its a Bullet cam, solid roller #504000 268/274 @.050 108 lobs sep .435/.418 lob lift x 1.65 T@D rockers Carb is a 880 that flows 950 I had built by Pro System's for my build. I had questioned there choice but they promised me it would get me down the track faster than any other carb choice. I...

Ya it is that, thanks for the coments it is a blast to drive, I was looking for more power but I never expected this much, nor did I expect to get into the 9s first time out or at all for that metter.

I agree on the power these eng will make, my new R3 engine is insane. my last 360 build had 400 hp to rear tires and it was fast, I even let a selected few test drive it, but with this R3 and probably 650 to rear tires ( no dyno # ) I would never let any one drive it. 71 Valiant 416 Indy 230...

I am hopping for 9.6s on engine only this coming season(Licence pending) and flirting with the 8s on the Nos.

No that is engine only, haven't even put the Nos back on the car yet, no need I am not licenced yet for the 9s

Its tuff to say with all the changes I made all at once, the R3 engine is 60lbs heavier, clutch was 30lb less, ladder bar system ? all in all the car is 150lbs lighter. 2900lbs me in the car. best guess 100lbs on the front suspension.

don't have a # in length for you, car is put away for the winter. There was very little choices in length with the design I have built, it is what it is. the length was decided by max height I could mount the upper bracket. the choice in shock design is what will make the difference. Again at...

I agree that a bad tune will make havoc on engines, that's why I took all precautions on my tune and took advice from some of the best nos guy's I no, I am confident that the tune was with in limits of a safe tune. KB Hypertech pistons are highly not recommended for any nos, in fact stock...

I ran a 360 block for 4 years street and strip, stock crank, H Beam rods,studded main caps, and KB pistons. this engine never mist a beat. Made 407 hp and 401 tq to the rear tires. My intentions were to pull it apart and make it stronger for Nos. Well I put the nos on first,180 shot( mistake )...

Just wanted to let every one no that the suspension worked awesome, It drives straight as an arrow on the street and track. I would not change a thing. Well except for my choice on the single adj shocks, I think I will go with double adj on the back, my 60's are not where I would like them and...

Ya I have been trying to brake myself of that bad habit, sec gear is not face plated so it will grind at 7500.on the 1-2 shift, Liberty has now made a face plated sec gear so I will be putting that in for next season. I hope it makes the diff. Plus my 60's are not where they should be, but as it...

This is on Vancouver Island in BC at an airport in Port Mcneill, this was my first pass with my all new SB R3 engine I ran a 1.43 60' 6.58 et at 107.8 mph. The following weekend I ran at another Airport in Port Alberni 1/4 mile and ran a 1.40 60' 9.99 et at 133.5...

I love the idea of big power out of small engines, I have been fighting that battle for years, 318,340,360s back in the day I was happy with the 12s 318 and 340 then I wanted the 11s went to the 360. Now I wanted to get into the low 10s and I built a R3 416 cubs and bypassed the 10s all together...

Thanks everyone, I am having a blast with my car, I may try the nos this coming season once I get my suspension dialed in.

I have a 250 plate, but it makes me wonder how you have yours set up to only gain 1/2 sec on a 300 shot. I was gaining a full sec on a 180 shot with my last combo, but that was with a lot less power 410 HP on engine and 567 Hp with the 180 shot. I went from 11.6s to 10.6s. Truth is I really...

depending on your race weight, if you are on the light side 12.0s if you are 3400lbs + mid 12s to hi 12s

Not sure if you meant mine, but It is a R3 block, Scat crank and rods, 11.30 comp, Indy heads fully ported, indy intake also ported , 860 Pro systems Carb, bullet cam 700 lift with the T@D 1.65 rockers. 10" race clutch from Advanced clutches. I only have 6 passes on this combo and have a few...

71 Scamp 4 spd 833 R3 416 eng best pass 9.99 @ 133 mph and still street driven

71 Scamp, 416 SB 23 spline pro shifted, my best is 1.420 9.99 @ 133 mph and still a street car.

This trany has been in the car for 5 years now and driven on the street a fare amount, it maybe has 50 passes on it. I shift @ 7500 rpm and the sec gear pro shift gears just can not take it it just grinds, third gear is super pro ( face plated ) but I have just stuck to what I no works, nothing...

Yes it is Liberty, its a 833,all aluminum, 23 spline, but I can not slam sec gear. Even though I have what some have said is granny shifting, ( clutching and backing out of it) I ran a 9.99 @ 133 mph and my clutch was slipping slightly. my 416 is putting out a pile of power. that's on engine...

I love it, what clutch are you using, I have a 71 Valiant with 416 and the 833 trans pro shifted but sure don't shift like that. Did you run this car with a different trans in it and if so how much did you pick up switching to this one.

with the 4:56s should get you mid 1.6s , 7.90 @ 85 + mph

What does it do now for 60's , et and mph

4:56s for sure, there is just nothing like the pull of the steep gears, short tracks like steep gears, I ran 4:88 with 28" tire for 1/8th mile. Its all in your 60' so ya the gears will help you, plus it keeps your rpm in your power range on shifts. its a win win.

Ya the mirror has got to go on the next vid.

Thought about it (once ) lol. ya it would be quicker for sure but it is a factory 4 gear car and I'm in the 9s with it and its still a street car, what more could a guy want. If I brake it, now that might be a different story.