Anyone with cams/stroker kits.....come in!

[hotmustang331]

What about some FRPP 2V Ported heads/Ported Bullitt Intake/VT Stage 3 cams on a 324BB? That would be a sweet NA 2V setup. Those FRPP 2V heads ported are flowing like 280cfm...not bad for 2V...just another option

Im sorry but im going to have to pull out the flag on this one. They are having trouble getting 300CFM out of fully worked 3V heads...and it takes ALOT to get 300CFM on the intake of even most of the 4V heads (the 3V has 2 intake and 1 exhaust...so intake flow is very simular to the 01 cobras). The best race 2V heads from like MPH (stg 3 porting...again RACE version) is only getting 246ish CFM. I dont see 280CFM coming from ANY modular 2V head.

 

[Mike97gt]

can i go 3.7" pistons with the stock block? and if you have the part # because i cant fin them i whant them disched!

to go with a 3.7 piston you need to do a big bore, and you can't use your stock block. get a aluminum block from a explorer and have it sleeved.

 

[Unreal281]

Damn...gettin a little off track with motor stuff.....

how about VT stroker kits....they look pretty high quality.....

and match that up with a bullit intake, vt stage 2s, ported/polished heads and intake, more fuel, and a good tune????

 

[BlackenedSVT]

+1 Good advice UDT, and thats exactly what im going to do lol. (well after I make it to 300 haha) But fortunatly for me, theres a small stipulation with making the 300....it must be with STOCK heads, so that will mean I wont be buying $2000 2V heads lol. Keeps me from going craze haha.

What about you? stock heads also or going to go a little more?


And yea 01 steeda and Adrenln, im not going to buy that...im now switching up a hair and thinking of doing a 324BB/strocker and slapping the GT 4V fully ported heads on there. We are talking 370+ CFM (P&P) vs 225CFM (P&P) for 2V heads....and stock GT heads are only doing 186 CFM on the intake. Thats why there is no power in the 2V N/A.

Well i guess we have similar goals. Yeah my goal for my car is 300rwhp N/A. I'll be trying to get some Stage 2 cams thsi summer, then a dyno tune.

May switch to some LT headers down the road, but not now. And as far as the heads go, yeah im not dumping $1-2k into aftermarket heads...waste of money for a 2v if you ask me. HOWEVER, since i ported out my own plenum, i think i MIGHT take my heads off and have fun porting those out but thats only if i can get a DD car and have my GT as a second.

 

[DropTopPony]

Im sorry but im going to have to pull out the flag on this one. They are having trouble getting 300CFM out of fully worked 3V heads...and it takes ALOT to get 300CFM on the intake of even most of the 4V heads (the 3V has 2 intake and 1 exhaust...so intake flow is very simular to the 01 cobras). The best race 2V heads from like MPH (stg 3 porting...again RACE version) is only getting 246ish CFM. I dont see 280CFM coming from ANY modular 2V head.

well whatever...the MPH heads are PI heads....NOT SVO/FRPP heads which are superior in every way. Race prepped by Steen or Renegade these things flow. Call Tim and ask him what he thinks you can get from a set of race prepped SVO heads. Don't forget these heads benefit from better valve placement.

 

[hotmustang331]

Got any flow #s? I know your just going off of what you heard, but I have to see some #s to believe it

 

[TGJ]

Im sorry but im going to have to pull out the flag on this one. They are having trouble getting 300CFM out of fully worked 3V heads...and it takes ALOT to get 300CFM on the intake of even most of the 4V heads (the 3V has 2 intake and 1 exhaust...so intake flow is very simular to the 01 cobras). The best race 2V heads from like MPH (stg 3 porting...again RACE version) is only getting 246ish CFM. I dont see 280CFM coming from ANY modular 2V head.

I know for a fact that Renegade Racing has achieved well over 250 CFM at .600 out of the FRPP 2V heads. I am not saying who has those heads or posting the flow numbers until that person comes out and says it themselves, but I do know that they are flowing quite well. Steen Racing has gotten 280 CFM out of the SVO heads for Jim Travers car. I don't have the flow numbers on Traver's heads. You can put your BS flag away.

 

[TGJ]

Damn...gettin a little off track with motor stuff.....

how about VT stroker kits....they look pretty high quality.....

and match that up with a bullit intake, vt stage 2s, ported/polished heads and intake, more fuel, and a good tune????

You would do well power wise until about 4500 RPM, than a stock sized bore and stroke would over take the stroker with the same mods. The Big-Bore will beat the stroker and stock displaced motor from idle to redline. That is why it is the preferred method of increasing displacement.

 

[hotmustang331]

I know for a fact that Renegade Racing has achieved well over 250 CFM at .600 out of the FRPP 2V heads. I am not saying who has those heads or posting the flow numbers until that person comes out and says it themselves, but I do know that they are flowing quite well. Steen Racing has gotten 280 CFM out of the SVO heads for Jim Travers car. I don't have the flow numbers on Traver's heads. You can put your BS flag away.

Ok then, lets see some proof of this 280CFM head. Lets see the flow bench data from steenracing...and how much it costs to do it . We are probably talking ALOT of portwork that takes the heads to the ege of their life IF this has been done. I said I dont see 280 CFM happening, but I thought he was referring to the PI heads...didnt think about the SVOs. I knew they had bigger valves, but didnt know much else. So maybe after some crazy work on them it can be done, so I opologize IF you guys can get some data to back up your claims. I know the stock SVOs flow 215CFM and have a 2MM offset valveplacement with larger valves...vs the stock PIs that flow 186ish.

And how much RWHP is this travers guy car making? I havnt heard of any 400RWHP 2Vs yet...

 

[DropTopPony]

Ok then, lets see some proof of this 280CFM head. Lets see the flow bench data from steenracing...and how much it costs to do it . We are probably talking ALOT of portwork that takes the heads to the ege of their life IF this has been done. I said I dont see 280 CFM happening, but I thought he was referring to the PI heads...didnt think about the SVOs. I knew they had bigger valves, but didnt know much else. So maybe after some crazy work on them it can be done, so I opologize IF you guys can get some data to back up your claims. I know the stock SVOs flow 215CFM and have a 2MM offset valveplacement with larger valves...vs the stock PIs that flow 186ish.

And how much RWHP is this travers guy car making? I havnt heard of any 400RWHP 2Vs yet...

Read the original post i wrote that you BS flagged, it says FRPP heads not PI. Travers car is not NA it is a turbo car and i think hes going for like 1200-1400hp. The FRPP heads can be ported way more because the have more material to port...they were designed that way.

 

[TGJ]

Ok then, lets see some proof of this 280CFM head. Lets see the flow bench data from steenracing...and how much it costs to do it . We are probably talking ALOT of portwork that takes the heads to the ege of their life IF this has been done. I said I dont see 280 CFM happening, but I thought he was referring to the PI heads...didnt think about the SVOs. I knew they had bigger valves, but didnt know much else. So maybe after some crazy work on them it can be done, so I opologize IF you guys can get some data to back up your claims. I know the stock SVOs flow 215CFM and have a 2MM offset valveplacement with larger valves...vs the stock PIs that flow 186ish.

And how much RWHP is this travers guy car making? I havnt heard of any 400RWHP 2Vs yet...

I don't have the flow data on Jim Traver's heads. That 280 CFM was info posted by Jim at Modular Depot.

This flow data is from a set of N/A SVO heads done by Jim at Renegade Racing, 3 years ago. I am not going to say what he has these heads flowing now, but it is significantly more.

lift int exh
.100 59 49
.200 123 92
.300 176 126
.400 209 148
.450 224 156
.500 235 165
.550 243 167
.600 246 169
.650 250 169

Other than the cost of the SVO heads, to have Jim do that work would cost you approx. $2000.00. They include the same upgraded hardware that all of Renegade's heads have.

 

[hotmustang331]

Read the original post i wrote that you BS flagged, it says FRPP heads not PI. Travers car is not NA it is a turbo car and i think hes going for like 1200-1400hp. The FRPP heads can be ported way more because the have more material to port...they were designed that way.

Ok sorry, when I think FRPP I think regular PIs...SVO to me is the other 2V heads. But they still dont flow enough to really make the 2V a capable N/A screamer. And they still get killed in the exhaust flow....remember STOCK 03 mach heads flow over 260CFM intake. Ported are closer to 320, and im sure if you spent that much time on them they could flow ALOT more. So ok you can buy FRPPs and get some more decent #s than I thought...learn something new everyday Ill do more research before pulling the flag on you next time haha.

 

[TGJ]

The SVO Head data I posted was ported that way for a N/A setup. The SVO/FRPP Head will flow over 220 CFM on the exhaust side as well. Since the search function on MD is messed up right now, I am going off of memory. Jim Travers SVO heads are something like 280 CFM intake, 230 exhaust. There is a 5.0L N/A Big-Bore 2V that is very close to breaking the 400 RWHP mark. Right now, I am not obliged to say who's car that is.

 

[Lapse138]

Just save up and get an insanely built VT Cobra 4V 324" Longblock and call it a day.

 

[VTEngine]

My .02, if anyone cares.

turbo = stroke (well both ideally )
n/a = bore
blower = either or none

N/A would gain mostly from the larger bore. The stroke decreases the dwell time of the piston, which isn't necessarily ideal for an n/a motor. However, that being said, our shop n/a car makes 345rwhp with a stroked 2v, with our stage2 heads/cams. I have other customers also making 330-340rwhp with stroker based combo's. The midrange torque gains are great for heavy street cars. A stroker with stock heads/cams = bad idea. You'll gain torque but lose h/p. Adding the bore helps unshroud the valves (as mentioned earlier) which is key for n/a motors. You have to get as much air in and out as effeciently as possible. Boosted cars, just up the boost, so its not as key.

Moral of the story, build what's in your budget, and go over the combination with the engine builder of your choice. Every engine we build goes through a 'consultation' so to speak. We ALWAYS ask numerous questions, such as : fuel octane, boost levels, power goals, budget, supporting mods, usage (street, strip, race), etc. Then we tailor the combo accordingly. Some times its stock stroke/bore, sometimes stroker, sometimes bigbore, etc. Everyones goals require different setups.