Maybe we should make a sticky for all those who post dyno info using AFR heads just like the Fast intake sticky thread.
With as many people that purchased the heads there is still very few dyno's graph's that I have found.
Hopefully a thread on the top with all the new AFR heads will help people search for AFR dyno charts so we can see for ourselves how good these heads are.
Just a suggestion.

 

Heck maybe this could even be a start.


"Hello Everyone,

I just had to share the results of our latest attempt to raise the bar once again with our "mild" 224 street package equipped with our 205 heads.
This is the same car and engine combo I have discussed with you in many previous threads.

The last and final addition to this project was the addition of a 90 mm FAST "top" (I already had the complete 78 version) and a 90 mm TPIS billet throttle body. Also, at the same time, I swapped out my 75mm LS1 MAF for the larger 85 mm 03' Z06 unit. I also changed to a Halltech airbridge which was better suited to the larger Z06 MAF.

We had hopes of seeing 5-10 additional RWHP with this set-up and low and behold, the dyno gods hovering over LAPD were smiling VERY LATE last night. Didn't get much sleep but I'm still pumped from the adrenaline rush of our results.

We actually ran some preliminary testing last Sunday which looked very promising, but decided to put some driving time on the new set-up to get a better handle about the fuel trims etc. before really trying to dial it all in.

First pull last night was 473 / 431 with a slightly different fuel curve than we left off on Sunday and to make a long but enjoyable story short, by the end of the evening our best overall run was 480 HP / 437 TQ and we actually saw a 481 HP run but we "only" made 435 TQ on that one. Actually, our best TQ run was 439 ft/lbs but wasn't coupled with the higher HP figure....we saw at least a half dozen 436-437 TQ pulls and quite a few 478-479 HP runs.

We are extremely pleased with the final results from this engine package and I personally have never experienced a 346 CID engine this docile that has such a "fury" at WOT.

If PHR or some other magazine decides to run a "Dr. Jekyl / Mr. Hyde" engine contest, count us in!

More info to come I'm sure.....

Quick 225 update....Having completed the finishing touches on the 205's, I am now back hot and heavy on the final design criteria of the 225's. Preliminary results look very good and we are doing are best to finish up this program ASAP....I know you guys have been waiting anxiously....I've got a very drivable 500+ RWHP C5 in mind!

Regards to all,
Tony Mamo

PS Just wanted to recognize our "local" dyno cell at LAPD....thanks for the use of the facilities guys....we really appreciate it. Hopefully there are still some "knurls" left on the rollers after we finish testing the 225 program hopefully soon!!"

 

https://ls1tech.com/forums/attachmen...chmentid=10506



This is the graph of the 480 HP dyno pull.

 

"Post from the Corvetteforum.com: Z06 + AFR heads 205cc + Halltech Stinger intake

From the time I bought my car, I have been looking at different ways to make more power without sacraficing comfort or drivability. Basically, I wanted the car to act completely stock, just have a bunch more power. Living in CA, I also didnt want to deal with exhaust mods (long tube headers.etc) that would cause me problems with the " smog police". I saw the numbers posted with the AFR heads when they made over 470 hp LAPD's dyno so I decided to call LAPD and see what they could do for me. I spoke with Al and discussed my goals and what I was trying to accomplish. To be honest, I was really hoping just to make over 400hp at the rear wheel and retain all my stock drivability. Al thought we could make that number with just the addition of the new AFR heads, in conjunction with my recent tuning & cold air intake. In a nutshell he was right....We made 409 hp and 391 ft lbs and all I can say is the car feels incredible! Power was up across the board over the entire dyno run. The graph is in my signature.... check it out!!
Bottom line, my stock Z06 with the addition of the new AFR heads and cold air intake is making somewhere around 475 hp.
I just really want to the thank all the guys over at the LAPD. You guys are the best I will recomend you to everyone I know...

Thanks again,
Stan

PS Great job AFR!!!"

 

http://img.villagephotos.com/p/2003-...ano409-391.GIF


Graph of the 409 horsepower run.

 

i have a question were these numbers made with a "out of the box head" or were they worked before they went on the car?????

 

great thread, but you should know by now no one reads stickies or bothers to search for ****.

 

Yes I do realize this as you are the biggest fan of the search button and I am not far behind.
If we get more results and had this as a sticky it might get read. I know I myself have went through the LSX results a few times, but thats me.

 

From what they say these are straight out of the box.
There isn't anyone as of now that is doing any extra porting to these heads as they are very new.
Soon to come but not yet.

 

I am pretty sure I saw an add for Kieth Kraft where they were hand finishing the AFR's to over 350cfm intake. I don't remember the exhaust.

 

too funny!

 

Why do that JRP when we have people like you to do the searches for us.


j/k

 

WHERE DO I GET AHOLD OF KEITH????

 

I want to see some individual results.LAPD works with AFR.I'm not doubting there #'s.Just want to see some people do them outside the main venders I've been waiting for a set and will post the exact gains 2 day's after I recieve the heads.

So where are all the results from people that recieved there AFR's

 

?????????????????????????????????????????????????? ?????????????????????????????????????????????????? ??????????

Wondering the same thing.

 

heres another vote to stickey this so people will share the results they get...

 

Keith Kraft was in my last GM High Tech. They had an almost full page add. They have some good prices and a lot of fast cars. Check them out.

 

Any new AFR results?
Come on guys I know you are out there somewhere.

 

I want to see flow #'s also. Do these heads really flow over 300 cfm with a measly 205 cc intake runner? Have they been flowed on any other bench besides AFR's?

As far as the dyno, I want to see someone that has all the bolt ons, a 224 or larger cam and another set of stg 2 heads. I want to see the increase from that swap. Basically take a 420-430 rwhp car and just swap to the AFR heads. Is that too far fetched to believe?

Also, when I say all the bolt on's I am talking about the ones we have been using for the past year. Not all this brand new, extremely expensive stuff that is just now being used by a few people.

I would like to see these test cars WITHOUT...
1) 90 MM LSX Intake $800
2) 90 MM TPIS TB $600
3) Elec WP $569
4) Stainless 1 7/8 to 2" headers $1200

Maybe I am naive, but the average guy can't afford to have those mods, along with the $2400 AFR heads.
Most people dont want to hear "You too can have 480-500 rwhp on your street car if you have 6000+ to spend on parts and maybe another couple grand to spend on labor.
Flame Away!

 

I understand what you mean however there are quite a few dyno's now where people have the Fast setup's and Real nice quality headers.
Maybe you didn't notice but 1 7/8 stepped to 2" headers can make less power than a regular LT if on the wrong setup.
I just want to see dyno's from regular car's I dont care what other bolton's they have as long as they have a similar setup as someone else for compairson sake.
Please get some dyno's guys.