better the heads flow requires less of a cam right.
? on a 346CID whats the mildest cam that will flow 100% on a set of AFR 205 heads?
I don't want to install heads then find out my current cam is only good for stock 853 heads and I never see the absolute potenshale preformance from a head upgade.
As far as the TFS over AFR, you also have the added cost of a rocker system to work with the TFS where the AFR's are a direct swap.
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better the heads flow requires less of a cam right?
Thanks
Interesting concept. Why did you say that?
Jon
__________________ "Being able to "think outside the box" presupposes you were able to think in it." --Bob Lutz "You can't rape Mother Nature."--Tom Ankeny "Doin' what they say can't be done."--Bo Darville "Who gives a cluck?"--Stroker Ace
not true, good heads and a good cam compliment each other well.
i agree, make sure the cam will match the flow of the heads. my cam does just that.. 224/228 .581 .588@114
AFR part number 6016
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2000 Vette MN6-H/C 224/228 .581.588@114|AFR 205s|Mamo FAST90/90
Kooks Headers|4.10s|GHL Magnum Plus|Bilstein Sports|Z06 Sways|Installed and tuned by ECS
Check on Vinci's web site, the cam you are running was mated to a set of AFR's (un-milled and stock gasket as I remember), which should give you an idea of what to expect.
I have the same cam you are now running. I also have a set of AFR's on my workbench that will go in this October along with the AFR 6016 cam (224/228 114 LSA). Note also that even though the cam specs at 0.050 are smaller on your current cam (216/224), the seat timing is actually more due to the slower lobe design.
__________________ 02 Mag Red Vette Convertible
Callaway Honker CAI, ATI Balancer, Cloyes IRL chain, GMPP dampener, AFR 205's, AFR 6016 cam, YT Rockers, QTP Headers, Morel lifters, Textralia X-Grip & DTE Stage IV 3.90's.
Vinncis is where I purchased my cam (Joe & Roger are very knowlegdable on LSX stuff) I haven't looked at there website for a few years I'm now thinking the shark project car has these AFR heads?
Why are you slitely upgrading you're cam ? to make sure you'll get all the potenshale from the AFRs?
How are you liking the 216/224/551/551/115? I think the torque is awesome even compared to more aggresive cams.
The project that did the heads was a C5 Corvette. The heads were first installed, then the cam later.
I was looking for a bit more power from the car without sacrificing drivabiltiy at all and the AFR cam that I selected meets those requirements. At first I was going to leave the cam alone, but decided to try and take the car to the next level. You are correct though, the car right now does have very good street manners and good low end power. I bought the cam from Joe at Corvettes at Carlisle a few years ago and have been very happy with it even though it is considered too small for many on this forum.
If you are going with heads, the AFRs are a nice head and should perform well for you. I would bump compression a bit by milling them. Contact Tony Mamo directly for advice, he can best provide input on how to set up the heads.
__________________ 02 Mag Red Vette Convertible
Callaway Honker CAI, ATI Balancer, Cloyes IRL chain, GMPP dampener, AFR 205's, AFR 6016 cam, YT Rockers, QTP Headers, Morel lifters, Textralia X-Grip & DTE Stage IV 3.90's.
just curious about the 114LSA and the auto. trans. I like the sound of a 114 compared to the 115 I had the understanding that my 115 cam was designed for auto. trans.
Interesting concept. Why did you say that?
Jon I said that to get feedback.
looking for replys like
1.drivabilty
2.stealthness
3.more low end power
4.being able to add more timing campared to a bigger cam.
but most of all not getting all the use out of a set of expensive heads.
looking for replys like
1.drivabilty
2.stealthness
3.more low end power
4.being able to add more timing campared to a bigger cam.
but most of all not getting all the use out of a set of expensive heads.
Thanks
A very basic way to look at this is:
The head determines the height of the entire torque curve and the cam determines how the torque curve "rotates" about the max torque rpm point.
So you can have good low end torque as well as high end power with a great head and a fairly tame cam. You don't get that from a poor head and cam no matter what the cam. We've all seen high hp at 6500 rpm combinations be down 30-50 lb-ft at 3000 rpm because a long duration cam needed to be used to get the hp number.
A fat, flat trorque curve, like 350 to 400 lb-ft (rw) from 3000 to 6500 makes a very driveable car and still makes about 450 rwhp @ 63-6400 on an A4 346 engine. That fulfills your 1. thru 3. above. Not sure why you want 4.
One way to look at a combination is to compare minimum torque to maximum torque throughout the rpm range you plan to run. in the 350-400 example noted there is 87% of MAX torque available from 3000-6500 and 80% of max torque available from 2500 to 6600.
I like to look at the rpm band for 80% of max torque to get an idea of driveability, especially the lowest rpm where 80% of max torque occurs. 2500 rpm is nice.
Done correctly with excellent heads and matching cam, a 510 rwhp 402 can have 80% of max torque @ ~2000 rpm That's driveability, stealth and low end.
Jon
__________________ "Being able to "think outside the box" presupposes you were able to think in it." --Bob Lutz "You can't rape Mother Nature."--Tom Ankeny "Doin' what they say can't be done."--Bo Darville "Who gives a cluck?"--Stroker Ace
this is what I'm all about power under the curve I'll let the big cam folks drive around at 6500RPM to get there power meanwhile I'll have power I can actually use.
#4. from what I understand the smaller the cam the more timing can be added.
just curious about the 114LSA and the auto. trans. I like the sound of a 114 compared to the 115 I had the understanding that my 115 cam was designed for auto. trans.
The cam I am running now if from Vinci website it is their XXX cam. I am goin to put AFR 205 heads on in a couple of weeks using there handheld tuner. I am expecting nice results.
There website is vincihiperformance.com
Roger Vinci has been building Drag cars for over 30yrs. I think he knows what he is talking about.
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AFR 205 milled 62cc VRX2 Full Bolt on's,Pacesetter LT Ported Fast 92/92, SVO 30# Injectors Centerforce DF 1.7 YT FM Merge Collector LM Exhaust Ported MAF Tuning and engine work by RevXtreme. 430 RWHP 400 RWTQ