are 200cc intake runners too large for street 5.0?

90lxwhite

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#1

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Would a set of heads w/ 200cc intake runners be too larger for street use and cause me to lose power?

 

Rick 91GT

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#2

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Not if they are in the right combo...

Whats the complete combo?

 

Venom351R

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http://www.musclemustangfastfords.com/tech/mmfp_1101_cylinder_head_comparison_test/viewall.html

 

90lxwhite

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I have a comp cam in it at the moment w/ stock heads and intake and Im not sure the lift off the top of my head but I'd like to reuse the cam if possible. What would be an ideal cam lift for a set of heads w/ the 200cc?

 

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Nice chart:

Horsepower Numbers

Dart Head Test 363
RPM 170 195 210 225
3,000 214 217 221 220
3,300 251 252 254 253
3,500 276 276 279 279
3,800 315 319 317 316
4,000 340 346 340 340
4,300 375 381 369 372
4,500 393 403 384 391
4,800 421 433 423 428
5,000 446 456 454 458
5,300 474 485 487 494
5,500 483 496 503 508
5,800 493 505 524 527
6,000 502 514 533 539
6,300 509 525 549 557
6,500 510 528 559 565
6,800 506 525 566 567
7,000 497 518 561 562

Dart Head Test 302
RPM 195 210 225
2,800 159 171 168
3,000 186 189 187
3,300 217 222 221
3,500 237 241 239
3,800 267 266 266
4,000 283 281 281
4,300 305 301 301
4,500 318 311 311
4,800 336 325 328
5,000 346 341 340
5,300 366 361 361
5,500 374 372 371
5,800 383 387 385
6,000 389 395 395
6,200 386 399 399

 

VibrantRedGT

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That chart looks like it would work nicely in the head section of the 94-95 sticky.

 

Noobz347

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VibrantRedGT said:

That chart looks like it would work nicely in the head section of the 94-95 sticky.

Click to expand...

Wait... SN-95s will hold up to that kind of power?

 

VibrantRedGT

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Noobz347 said:

Wait... SN-95s will hold up to that kind of power?

Click to expand...

Yeah, better than your Corsica, maybe.

Added that link to section 1 of the 94-95 Sticky in Tech.

 

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VibrantRedGT said:

Yeah, better than your Corsica, maybe.

Added that link to section 1 of the 94-95 Sticky in Tech.

Click to expand...

Hmmm... might be close. :

 

90lxwhite

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um yeah nice chart.. So, what cam??

 

Noobz347

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#11

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You tell us... what cam you got?

 

90lxwhite

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#12

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Tryin to pick one Ace..

 

Rick 91GT

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#13

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Rick 91GT said:

Not if they are in the right combo...

Whats the complete combo?

Click to expand...

I ask again.. WHAT IS THE ENTIRE COMBO. You can't pick a cam without knowing all the rest of the parts.

 

revhead347

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#14

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I think what he might be implying is that he would like to run a set of 200cc heads, but if he did, then he would have to run an unstreetable cam to take advantage of them. If that's what you're asking, then in my opinion, yes. 200cc heads can be set up totally streetable with a good camshaft.

Kurt

 

4Jenna

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#15

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E cam of fury?

 

Venom351R

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#16

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there are lots of good on the shelf and custom cams that will work excellent with a 200cc head. That was an article that was in last years MMFF magazine. I to was debating head size VS Cubic in size even after I pulled the trigger on a set of custom CNC Ported 234cc High Ports on my 351, then that article came out just after and it shed a lot of light on that subject

 

90lxwhite

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Yes, thank you kurt and thank you Venom, that is exactly what I was asking. So would anyone happen to know or have a ball park idea on what kind of cam specs I would need? Or do you think that I'd be better off just going with a 180cc or so head?

 

Rick 91GT

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Whats the combo.....

 

revhead347

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#19

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90lxwhite said:

Yes, thank you kurt and thank you Venom, that is exactly what I was asking. So would anyone happen to know or have a ball park idea on what kind of cam specs I would need? Or do you think that I'd be better off just going with a 180cc or so head?

Click to expand...

You're honestly better off running your cam question by a cam expert. Most forum advice on cam selection isn't going to be very good. Not too many people on here have built enough combinations to give an educated choice on what cam to buy. I usually recommend just calling Comp cams and asking simply because they have the highest number of off the shelf camshafts. Venom has like a 234cc head with a streetable camshaft. Most of the cam selection is going to be about what you want to do with the car. Venom had his cam custom ground. Also, different people have a different opinion of what is streetable. I can assure you though, that if you do buy a 200cc head, you can set it up as streetable as you want. What brand of head are you looking at? Rick might have the most experience here, and that is why he is so adamant about asking what combination you want to run with the rest of this. What compression ratio are you going to run, what intake do you want to run? These different items play a huge part in picking a camshaft.

Kurt

 

Venom351R

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#20

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Like Kurt and Rick said it all depends on your combo. My heads are custom and the cam is custom but they should work together fine (when its running again) but every combo is different so w/out info on the rest of the combo its hard to suggest what other parts and even then like kurt said that's more or left up to the experts like at comp cam's or custom cam grinders like Ed Curtis. What I can broadly suggest is that yes you can run a 180-200cc head and still have great street manners but as far as which cam to get that effect your better off to go custom or to call comp or someone such as them and ask what off the shelf cam would work as well.