gsrwpower

Im trying to decide on whether I should go with the toda b spec cams, or the crower cams. I know the A spec toda camshafts you do not need valve springs or anything but the camshaft gears. Besides the camshafts what would be the best vtec b-series cam gears. If you have any good technical thoughts on this please help me out. Thank you

TurboGS-R

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gsrwpower &raquo;</TD></TR><TR><TD CLASS="quote">Im trying to decide on whether I should go with the toda b spec cams, or the crower cams. I know the A spec toda camshafts you do not need valve springs or anything but the camshaft gears. Besides the camshafts what would be the best vtec b-series cam gears. If you have any good technical thoughts on this please help me out. Thank you </TD></TR></TABLE>
I'm guessing this is for All-Motor? Perhaps look into some Skunk2 cams or JUN cams.

gsrwpower

Thanks for the help. Do you have any websites on hand for the two companys.

xplanetearth420x

skunk2.com

xplanetearth420x

i thought you were selling your car for a big bad v8?

gsrwpower

Thanks. Does anyone know the website of the JUN cams.

Robstunner4

toda cams!


STOCK GSR : b17a and b18c1 (Chilled Cast Core)

INTAKE lift - 10.6 mm,duration - 230 @1mm
EXHAUST lift - 9.4mm, duration - 227@1mm

1. ITR/CTR (Chilled Cast Cores)

http://tech.hybridgarage.com/tech/bseries.html (originally this table came from Frank Lin's old gspeed.com website and the legend of b16a section which is now 404)


- STOCK 1997-1999 ITR ($500-580/pr, ITR intake cam $250-290)

INTAKE lift - 11.5 mm, duration 240 @1mm
EXHAUST lift - 10.5mm, duration 235 @1mm


- STOCK CTR and 2000-2001 ITR (CTR intake cam $300-350)

INTAKE lift - 11.5 mm, duration 243 @1mm
EXHAUST lift - 10.5mm, duration 235 @1mm

AFTERMARKET CAMS (LISTED IN ALPHABETICAL ORDER)


2. Blox (no @1mm specs available)

( MSRP $750 US/pr for Tuner Series not Competition Series, Chill Cast Cores )

http://www.wicked-industries.com

- Type A , Tuner Series($450-535 US / pr)

INTAKE lift - 11.7 mm, duration 247 @ 0.05 in.
EXHAUST lift - 10.7mm, duration 239 @0.05 in.

- Type B, Tuner Series ($450-540 US /pr)

INTAKE lift - 12.4 mm, duration 266 @0.05 in.
EXHAUST lift - 12.0 mm, duration 266 @0.05 in.

- Type HSL, Competition Series ($510-570 US /pr)

INTAKE lift - 12.6 mm, duration 255 @0.05 in.
EXHAUST lift - 12.5 mm, duration 256 @0.05 in.


no available specs for Tuner Series Type HSL or Turbo, Competition Series Type B , 10124 Race, or Turbo yet.


3. Buddy Club

- Spec 3 Plus ($549 US / pr)

INTAKE lift - 11.2 mm, duration 250 @1mm
EXHAUST lift - 11.5mm, duration 245 @1mm

- Spec 4 ($600 US /pr)

INTAKE lift - 12.3 mm, duration 269 @1mm
EXHAUST lift - 11.8 mm, duration 274 @1mm


4. Cat from Europe ($485 US / pr)

These 2501606 billet VTEC road racing cams come from the Euporean import scene and Cat are cam makers for some of the Honda British Touring Car Championship teams. They require a VTEC/fuel controller like the Apex VAFC for tuning the idle and have an aggressive ramp and more aggressive nonVTEC lobes, despite the relatively mild specs on the VTEC lobe. Thanks goes to Steve at Johnston Research & Performance for the info.

http://www.jrponline.com/

INTAKE lift - 11.1 mm, duration 242 @1mm
EXHAUST lift - 10.32mm, duration 240 @1mm

5. Crane Standard Tappet & Race Only Roller Follower Cams

The specs listed on the Crane Cams website are at 0.05 in. valve lift. Thanks to Dave Maxwell at Crane for forwarding the duration @1mm valve lift specs for the Stage 1 cams.

http://www.cranecams.com/import/avteccams.htm

- Stage 1 (part no. 2530010 - $773.33/pr)

INTAKE lift- 11.6 mm, duration 243 @ 1mm
EXHAUST lift - 10.8mm, duration 237 @ 1mm

- Stage 2 (part no. 2530012)

INTAKE lift- 11.99 mm, duration 248 @ 0.05 in.
EXHAUST lift - 11.6 mm, duration 242 @0.05 in.

- Stage 3 (part no. 2530016)

INTAKE lift- 12.39 mm, duration 254 @ 0.05 in.
EXHAUST lift - 11.99 mm, duration 248 @ 0.05 in.

- Crane/Ferrea Roller Cams (part no. 2530514 $629/pr but must also purchase Crane/Ferrea Roller Followers Set price - unknown. See comments below about using roller cams and standard rockers or followers)

http://www.ferrea.com/Import_C....html

6. Crower VTEC Cams (Chilled Cast Cores)

http://www.crower.com/

Here are the cam durations @ 1mm valve lift which are not on the Crower website. Thanks to Brian Crower for providing these.According to Brian the reason why he did not provide the duration @ 1mm:

"The Toda advertised specs are at .0143", so that's why we adopted that number as our advertised number." All cams $642/pr.

- 63402's have the same lift but lopier idle and bigger intake duration than the 63402A :

INTAKE lift - 11.83 mm, duration 237 @1mm
EXHAUST lift - 11.81 mm, duration 228 @1mm

- 63403

INTAKE lift - 11.98 mm, duration 246 @1mm
EXHAUST lift - 11.83 mm, duration 238 @1mm

- 63412 N/A Race Core Cams

INTAKE lift - 11.84 mm,duration - (estimated) 260 @1 mm
EXHAUST lift - 11.81 mm, duration - (estimated) 252 @1 mm

- 63413 N/A Race Core Cams

INTAKE lift - 11.99 mm,duration - (estimated) 269 @1 mm
EXHAUST lift - 11.84 mm, duration - (estimated) 258 @1 mm

- 63411T Turbo Race Core Cams

INTAKE lift - 11.81 mm,duration - (estimated) 242 @1 mm
EXHAUST lift - 11.30 mm, duration - (estimated) 238 @1 mm

7. Dan Paramore

http://www.dprracing.com/pages/products/cams.htm

Dan Paramore did not get back to me to provide the duration @1mm lift specs when I had requested them. The intake ABDC closing spec is 52 degrees.

307 Cam (Race Only, $649/pr)

INTAKE lift - 12.07 mm, duration 248 @0.05 in.
EXHAUST lift - 12.07 mm, duration 248 @0.05 in.


8. Jun

Here is Jun's website:

http://www.junauto.co.jp/produ.../B18C

Here are their max. lift and duration 1mm valve lift specs for the VTEC lobes :

- Type 1

INTAKE lift - 10.9 mm, duration 265 @ 1mm
EXHAUST lift - 10.0 mm, duration 268 @ 1mm

- Type 2

INTAKE lift - 12.0 mm, duration 267 @ 1mm
EXHAUST lift - 10.9 mm, duration 265 @ 1mm

- Type 3 ($890/pr)

INTAKE lift - 12.0 mm, duration 265 @ 1mm (Advertised 304)
EXHAUST lift - 11.5 mm, duration 265 @ 1mm (Advertised 304)

- Type 4($??/pr)

INTAKE lift - 12.5 mm, duration 265 @ 1mm (Advertised 304)
EXHAUST lift - 12.5 mm, duration 265 @ 1mm (Advertised 304)

Jun Type 3's have the reputation of eating valves if you milled the head, advanced cam gear timing more than 3 degrees, use oversized stainless valves, or use non-Jun or non-Toda valvesprings.

9. Piper

Here is Piper's website:

http://www.pipercams.co.uk

- BP285

INTAKE lift - 11.6 mm, duration 256 @ 1mm
EXHAUST lift - 11.2 mm, duration 256 @ 1mm

10. Rocket Motorsports (formerly Hondasaver, formerly EF-1)

thanks goes to Tom (aka Tbone) for emailing me the @1mm duration specs. ($750/pr or $990 with RM valvesprings as a kit). These cam lobes come Parkerized coated.

http://www.m24x.com/

M20 and M21 specs (11.5-11.6 lift 274 advertised duration) not listed since we don't have their @1mm duration specs but are much less aggressive than M22's. M22 (street N/A)

INTAKE lift - 12.1 mm, duration 244 @ 1mm
EXHAUST lift - 12.1 mm, duration 244 @ 1mm

M23 (no longer available)

INTAKE lift - 12.1 mm, duration 252 @ 1mm
EXHAUST lift - 12.1 mm, duration 252 @ 1mm

M24 plain (no longer available)

INTAKE lift - 12.1 mm, duration 258 @ 1mm
EXHAUST lift - 12.1 mm, duration 258 @ 1mm

M24E

INTAKE lift - 12.7 mm, duration 263 @ 1mm
EXHAUST lift - 12.7 mm, duration 263 @ 1mm

M24X

INTAKE lift - 12.7 mm, duration 258 @ 1mm
EXHAUST lift - 12.1 mm, duration 265 @ 1mm

M25

INTAKE lift - 12.1 mm, duration 270 @ 1mm
EXHAUST lift - 12.1 mm, duration 270 @ 1mm

M25E

INTAKE lift - 13.25 mm, duration 276 @ 1mm
EXHAUST lift - 13.25 mm, duration 276 @ 1mm

MXX

Propriety Specs for Contracted Race Teams.

X denotes 1 large nonVTEC lobe resulting in staggering like the stock nonVTEC lobes layout for swirl filling and good emissions/idle quality. XX denotes 2 large nonVTEC lobes unstaggered like the Toda cams' nonVTEC lobes.


11. Skunk2 (Chilled Cast Cores)

http://www.skunk2.com now have the specs available. At the time of writing this article, they did not have the specs listed and I had emailed them via info@skunk2.com. Here are the specs provided by Dave Hsu at Skunk2 to me:

- Stage I (best price $712.50/pr, retail $797/pr, CARB Exempt pending)
INTAKE lift- 11.58 mm, duration 252 @ 1mm
EXHAUST lift - 10.8 mm, duration 249 @1mm

- Pro I+ for B series
INTAKE lift- 12.6 mm, duration 264 @ 1mm
EXHAUST lift - 11.9 mm, duration 264 @ 1mm

- Stage II (Not CARB Exempt, $700-725/pr, retail $849/pr)
INTAKE lift- 12.3 mm, duration 266 @ 1mm
EXHAUST lift - 11.8 mm, duration 262 @ 1mm

- Stage III - (race only, $700-725/pr, retail $849/pr)
INTAKE lift- 12.8 mm, duration 270 @ 1mm
EXHAUST lift - 11.8 mm, duration 279 @ 1mm


12. Spoon ($1045/pr)

Specs were kindly provided by Alan Chow at A&J Racing

http://www.spoon-sports.com/

INTAKE lift - 11.53 mm, duration 256 @1mm
EXHAUST lift - 11.13 mm, duration 245 @1mm

13. Toda

The advertised duration @ 0.015 in. lift can be found on their website. Thanks to Ali Jahed at AKH Racing for the duration @1mm valve lift specs.:

http://www.todaracing.com/prod....html

- Spec A's ($920/pr)

INTAKE lift - 11.6 mm,duration 250 @1mm
EXHAUST lift - 11.2mm, duration 240 @1mm

- Spec B's ($980/pr)

INTAKE lift - 12 mm, duration 255 @1mm
EXHAUST lift - 12mm, duration 245 @1mm

- Spec C's ($1100/pr)

INTAKE lift - 12.5 mm, duration 255 @1mm
EXHAUST lift - 12.5mm, duration 255 @1mm

- Spec D's ($ Not Available/pr, RACE ONLY )

INTAKE lift - 12.9 mm, duration - estimated 265 @1mm (Advertised 305)
EXHAUST lift - 11.9 mm, duration - estimated 275 @1mm (Advertised 315)

In terms of streetable cams, Toda D's have the highest non-roller intake lift in the market.If you rev past 8400 rpm, Toda valvesprings are required.

- Race-Only "Killer Cams" ($1,800/pr includes solenoid oil line plug)

http://www.todaracing.com/prod....html

INTAKE lift - 12.0 mm, duration 265 @1mm
EXHAUST lift - 11.5 mm, duration 255 @1mm
4. Zex/Comp Cams

http://www.zex.com or http://www.compcams.com/catalog/192_193.html

Thanks to Matt Patrick at Zex (Comp Cams). All $566.61/pr (the 57300 are by far the best bargain on the market).

- 57100, no valvespring change required:

INTAKE lift - 11.05 mm, duration 230 @ 0.05 in.
EXHAUST lift - 9.90 mm, duration 228 @ 0.05 in.

- 57200, valve spring change is required:

INTAKE lift - 12.45 mm, duration 248 @ 0.05 in.
EXHAUST lift - 11.43 mm, duration 246 @ 0.05 in.

- 57300, for racing only, high compression and major port work needed, for 10,000 rpm engines only:

INTAKE lift - 13.20 mm, duration 260 @ 0.05 in.
EXHAUST lift - 11.94 mm, duration 258 @ 0.05 in.

thats copied from T-I

gsrwpower

Thank you for all the information on this topic.

Uncle Ben's

holy **** that was alot of info