as above, been searching through for bd14's etc but read they would collide with the pistons unless 4x4 or pocketed pstons are used?

spec:

Gt3071r
swedish plenum
2wd head
205 bottom end

Would the best be a bd14 inlet and STD exh, or would 400-420 be possible on a standard head+cams?

 

Do a search for AB07 cam, this will do what you want.

 

Good cam and works without valve cutouts

Steve

 

 

The AB07 is the only decent cam you will get unless you speak to one of the big tuners regarding a custom cam

 

What spec lift is a ab07 similar to? cheers il search here for them now, theyre expensive though compared to Bd's are they not?

 

Similar to a BD14

 

cheers for them bram, would it still be making power at 6500+ and is that correct the bd14 has .017 more lift? Does this effect performance much?

cheers

 

Tbh you don't have alot of choice if your not running pocketed pistons. Mine was still making power at 6.8k on a T4 with this cam. I have built a new engine with pocketed pistons and have decided to keep my AB07 cam, having been out in T4 cars running BD16's, i feel the AB07 makes for a nicer drive on a road with the way the power comes in.

 

AB07 = magic cam

 

take it theres alot more torque made from the standard inlet cam then, would the swedish plenum make a difference also?

How much did you guys pay for yours if you dont mind?

Bd's are cheap compared to the 256's i bought for my starlet.

cheers

 

Have you fitted yours yet Kev ?

Steve

 

The AB07 is a win win cam on both power and torque.

I lost no bottom end power or torque when i had mine fitted and made big gains in both higher up running the same boost.

If you do a search you will find my graphs before and after the cam was fitted.

Steve

 

Was just done on Friday there Steve.

 

I didn't think 438lb/ft was bad tbh.

 

Boost were you running with that nash, the good thing is a gt3071 comes on boost earlier than a t4

 

Interesting as i'm in two minds about rebuilding mine again with pockets and that was the inlet choice but.....

What you think Kev?

I've only been in one T4 car, don't even think it was running full potential but lets just say it comes on boost that hard i seriously didn't believe the brakes could stop it if they needed to - they are an awesome turbo on the right engine

 

Not driven it yet Chris

 

Here is the before and after graphs





Steve

 

fookin hell steve that power comes is alot earlier and harder!Nearly 100ftlbs more torque?! bet it pulls Very well

 

Like i said its a good cam

Both graphs are with the same boost as well.

The RPM scale is a few hundred rpm low on the second graph.

It now has a few more ponys and will spin the wheels in 3rd at 80 lol

Steve

 

Ab07 is an excellent cam and offers both power and torque increases throughout the range without compromising bottom/mid range torque.The bd series of cams are now old hat,not saying that they are not good but a lot of modern tuners these days say there are far better cams developed since the bd series.

Thanks.Lee.

 

mine had a ab07 cam fitted by Turbosystems since 1994. so not as new as you think.

 

What you really want is Mark Shead's inlet cam for the GT30

 

Thats odd as when Ahmed mapped my car in 2007 he recommend fitting one of his new cams he had just designed, Ahmed said he had just finished testing them. How sure are you that urs is an AB07 and not a CW1?

 

27-28psi.

 

James you only read good things about his inlet cam but you can't buy one off the shelf as such can you?

So unless your having a complete engine build or aftermarket management they are not available

 

Chris,

I believe Mark will sell you one providing he times the engine up Not sure if he would need to map it also, or whether he's happy for you to let someone map the Weber for you. Give him a bell he'll soon tell you

 

the guys i use are the autronic dealers for n ireland and are big with mark, mark said he will supply me one off his cams as long as they fit and time it in,
which is nt a problem

 

They'll probably blow your engine up though

 

am i the only plum that had no idea AB stood for ahmed bayjoo?!?! lol

 

PLUM................

 

balls! haha

 

Pete, tbh mate i didn't know myself.....




I've only heard great things about them though..

 

That they are

I wounder what a pair would be like ??????

Steve

 

haha not just me then you plum!

cossie4i - what's your actual engine spec? i can read what's in your sig but what else, standard bottom end etc etc?

 

cuz iv'e just changed it for a bd16 at Turbosystems. it had got ab07 stamped on the rear of the cam.

 

whoooo er nice pair.

i had a pair in mine still got the ex cam in.

 

Standard bottom end, well slightly lower comp and still on a 205 block.

Steve

 

why whos engine did they blow ?