Hello Guys ! Im Raf from Italy .. I have a 70 cuda with 500 ci .. Drag car ...in Italy .. We have 4/5 race at year .. My best ET is 10,33@135 1,53 60 ft ...this is my specs :
1970 cuda
440 bored at 4,36"
440 source 4.15 crank
H beam rod
All balanced
Ross flat top pistons 12:1 cr
Total max seal rings ..gapless top ring
Indyheads 295 ez all polished and CNC
Roller camshaft .670 lift
Roller rockers harland sharp 1,6
Cometic head gaskets multilayer
Indy single plane intake
1050 quick fuel carburetor
Shot nitrous +200 hp activated with delay box
Also 727 Transmission is build from mine
All drums billet
Billet pistons
Full manual valve body
5500 stall ultimate converter
Rear end is 8 3/4 with detroit locker with 4.10
Stock leaf springs
Caltracs zero preload
Subframe connector
Rear shock is qa1 all soft
Front drag shock 90/10
Tires is 28/10,50/15 MT drag slick

Best Et 10,33@135 1.53 60 ft

My goal is 9,90 ... With nitrous activation before .. And monoleaf !

Will be happy for any advice !!

Thanks !

 

Raf, welcome to the forum! Everything sounds good,what does the car weigh? How many passes have you made? I am surprised that 8 3/4 rear has survived! You might want to get a dana60 or ford 9" in there

john.

 

Good to see you here Raffa.... Welcome to the Site......

 

Car weight is 3400 lb ! Around 50 pass with this engine .. Now is dysassembled for refresh ... Oil leak from valve steam .. I dont know if this is caused from too toluene in the gasoline ... Also exhaust valves is wear .. I think for nitrous oxide ?? Yes John 8 3/4 with this horses no problem for now !! Side shafts stock , wheel bearings stock , only ring and carrier detroit locker !! My best 60 ft is 1.53 ... I will post some pictures of engine dysassembled for refresh .

 

Welcome Raffa,

That sounds like some animal of a car you got!! I take it, it's not streetable?

Post of some pics soon

 

 

 

 

 

 

 

 

Video Inside !

 

Suspension video :

 

Car still looks and sounds great Raffa..... Is that still the Combo Motor you and Tom talked about?
1. video still looks like the car is spinning the tire?
2. Video Dose it look like that Tire is buckled in the middle about the middle of 2nd gear.

You are almost in the 9's Buddy !!!!!

 

yes Racerhog !! this is modality kill from Tom help !! Tom is my big friend !! i dont understand buckled in 2nd gear !! ?? my goal is 9.90 !!

 

Wondering if the slick has full contact with the Track?
Looking at the video. It looks like the tire my not be stuck to the track?

 

just an idea about "exhaust valves wear" 1. might be a bad valve job. 2. the super hi lift cam will strain the valves a lot. 3. or you are turning the engine to hi speed. try lowering the top RPM.

 

realy? traction bars no a race mopar? you need to do your research how to build a mopar race car.

 

Easy Moe....... He drives this on the Street also....
Just wait till he posts up some of the cars he has done..... Raffa Dose beautiful work...

 

[QUOTE=RacerHog;111846]Easy Moe....... He drives this on the Street also.... yes Tom , Car is ready for the next years season , my goal is 9.90 , but i have problem with nitrous activation delay , doesn't work very well , when i release the gas , restart the countdown and the nitrous will active almost at finish line !!! this is not good !! , another problem is the oil pressure .. look like at idle ( 70 psi ) is better than at 7500 rpm is 60 psi ... i dont know this ... is not very good ...


this is the video of timing tune up

 

Raffa....Add one more Quart of engine oil to the engine and see if that helps.. The problem "Might" be the High Volume oil pump is sucking most of the oil out of the pan and it is not returning back down fast enough....

AS for the Nitrous activation problem..That you have got to fined the problem.
That is bad!!

Are you running the MSD electronics for your NOS System?

Sorry... I dont remember all of your set up, it was all over on "Mopartech" but now that it is gone, I have to go by my memorie.....lol

 

External oiling system

 

 

 

Bob .. 1 quart more ?? and wich oil you advice me ?? i have installed now external oiling .. you like ?? .. now i use 10w60 Castrol edge .. but i can have also Valvoline VR1 racing

 

Bob ..i see now your question !! yes MSD 6 AL with timing retard , nitrous is 200 HP with 95-102 jet killer mode !!

Tom for oil return i have drilled all windage tray .. can add 1 quart more ?

 

Raffa... If you/we think the oil is all getting sucked out of the oil pan.. you can add 1 more quart of oil to see if the problem goes away. If the pressure gets better. Then you know the engine was under oil capacity and that would explain the drop/loss.

Yes I like the External Pump.... Leaves room for the bigger stroke crank and rods...

I'm Not Much into Multigrade oil.....
I like 30W or 40W... Racing.... I use Castrol... But nothing wrong with VALVOLINE VR.
I think it holds its viscosity better when we beat the **** out of it....
But thats just my opinion....

You got the NOS Fixed?

Did you install the CAL-Trac's?

Hope you have a great season of racing..And get that 9.90...

 

If an extra qt of oil does not help ? I would try adjusting the pressure relief valve When cold ! it is Ok but when hot . the oil thins and the oil pressure relief releases at 60 psi ????

 

Great car !!!