i was thinking about going with this setup, But i don't have the Fast intake or the pulley...any idea what kind of number's i'd be making?

any sound clips? I wanna hear what she sounds like!!

 

You spent a lot of money for 20hp... You would have probably been close to that with just the 90mm Intake and TB

just let me and gomer **** this mule we can handle it

 

Looks like locked #'s to me

 

https://ls1tech.com/forums/showpost....7&postcount=32

In this thread Gomer said that it was locked. The lack of a torque spike also indicates it was locked.

 

I wasn't saying anything bad about it. I was just answering a question

 

sound clips! sound clips!

 

you find the graph yet?

i agree with your assessement of cam and 90/90 gains, that pretty much accounts for the peak to peak and past peak gains. whats the chamber volume of the new head? from my rough guestimations he lost .4 of a point of compression. where does the gain from the new heads come in if any? are the valves the same size as the old set; 2.04/1.585?

 

was wondering the same things....didn't Pat G gain this much awhile back with just swapping to the same intake? Good numbers through an auto none the less, just wish there were less changes in between to quantify, but I have never been to a cheap dyno yet...

 

You have any time slips yet Mark?

 

I haven't had time to look for the graph, I've been out of town the past two days and haven't had much net access or access to my home PC. I'll dig it up Monday.

I didn't cc the chambers on these heads, but I'd guess they are slightly larger than stock 5.3 chambers because of material taken out when the chambers are CNC'd and also from the material when the valves are unshrouded. I don't think there was very much gain from the old to the new heads, they have the same 2.04 intake valve, but the exhaust is a Ferrea exhaust valve. These were unmilled because I didn't want to flycut Mark's pistons to run the larger cam and we sold his old heads for a good price. The car did 400rwhp before with the higher compression, more aggressive tune, and a smaller cam.. I was expecting around 420rwhp with the lower compression, larger cam, FAST 90 setup, and the rich tune with lower timing.. so it actually turned out a little better than I was expecting.

 

I thought you guys were taking this thing racing! Where's the slips???

 

and the clips

 

Mark is going Thursday night. He'll have some slips then.

I don't have a way to get any sound clips and I've already delivered the car back to Mark, he lives about 3 hours away from my shop.

 

Which track will you all be going to?

John

 

I'm not going, only Mark. I THINK he said he was going to Bama. I'll PM him and have him post up where he's going.

 

How did it run at the track?


John

 

Very good results.I dynoed my car before I had my 90/90 set up put on and then right after.I picked up 10rwhp/10fpt,just about what Gomer's results show on a heads cam car.
I then had the car retuned and saw the same 10/10 but much better drivability.

 

Very nice numbers for an A4. It will run hard at the track. As stated above by JFM he only gained 10 hp from the 90/90 swap on a h/c car. I think the m6 cars are the only guys getting 20+ hp from this swap.

 

o yeah 7.00 flat in the eighth with 323 gears