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Torquey Cam?

BRAD_242GT said:
May i ask whats so wrong with a B cam??
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Too much reversion in a turbo from the overlap and duration. I hate the powerband it gives, fairly lousy fuel econ. The A is better...same basic cam, more lobe angle separation and slightly narrower duration if you need or want more than a T.

IMO the B feels fairly fast because it really sorta ramps up with a very fat midrange, especially in a turbo. Response is lousy and IMO a good breathing T is better, less exhaust heat in the combustion chamber, better fuel econ and maybe even faster. The T also has good torque from idle on upward and LH-jet and the T get along well.
LH leaves a lot on the table with a fatter lumpier (usually meaning more overlap/duration) cam and you sacrifice fuel econ with the fatter B and K. LH-jet is emissions nancy boy garbage and won't make those cams sing as well as they could.
In a K-jet NA car, you can use a B21A dizzy for an A cam and a B23E dizzy for a K to get the most out of those cams. In an LH NA, I'd recommend a T or IPD turbo/V15 (same basic cam with some slight overlap foolery for turbo/NA use).. In a K-jet NA, i'd try to bump the compression up, make it breathe a bit better, put the B23E dizzy in and put a K in it. For this guy, a T (consider using the 240T dizzy) or A (with the proper dizzy) sounds right. K is probably a touch too wild for the smaller B21F fuel dizzy and lower compression. The K will have lots of torque from 2800-3 on up with high compression and proper timing and is a blast to drive.
 
BRAD_242GT said:
So no good in b23et with larger turbo ect.. (sorry 4 hijacking!)
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look at the Euro spec ET engines, the B230ET was a turbo engine and it has a A cam.
IIRC A and B cams are pretty much the same except that the B has more overlap (dammit i cant find a cam tableto check it!). That way you'll lose a lot of fuel efficency without gaining power.
 
this thread is the only alive and i know **** about cams :( besides they open and close valves lol.
 
Where could one find an A cam? If I understand correctly, it gives a little more low-end than the T cam. Correct?
 
I never comapred those 2.
In one engine, I went from M to V to A to B. I like the A very much, the V more, but I gave it away, and the B is still in the car.
I could sell the A.
 
Fuel?

I'm thinking of dropping a K into my lh2.4 240 NA. I have the IPD cam gear. I will put some compression in it and I did the Ezk advance trick for 3 more degrees.

Would it help to put in a set of 16v injectors as well as the fuel ECU? I have both on hand.

I also have turbo injectors and the resistor pack on hand.

Thanks
 
i wouldnt worry about it steve. maybe if you can find a 3.5bar FPR run that. but the 16V stuff won't work right on the 8V engine most likely. the NA ecu won't like the resistors and injectors from the turbo car, either

my 8v responded very well to slight enrichment from clamping the fuel return line (6whp without any fine tuning of either fuel or ignition timing). probably could have picked up 5-10more hp if i had better control of fuel and ignition (coughMSNScough) even at the stock 6000rpm redline. with a K, 6800 is no problem for towery, and he's making 15whp more than i
 
Right, I wouldn't ask the 16v ecu to run with turbo resistor injectors. I bought a MSnS (I think it includes spark since he gave me a hall effect dizzy) from Tiebird. Not sure which 240 I will put it in, though.
 
cams

Here is a table of Volvo and aftermarket cams that I believe was posted by Fred about a year or so ago. If I am incorrect please speak up. Anyway, it's good for comparing cams along with looking at the torque@rpms for stock Volvo engines to figure out where you want your torque to be.
B2xx 8v cams


Cam Lift (in) Lift (out) Dur. (in) Dur. (out) LSA Manufacturer Notes:

A 10.5 254 249 109 Standard B17, B19A, B21A, B23A, B19E (84), B23E (84), B200E, B230A/E/ET
B 10.6 256 249 Standard B21F/E, B23ET
D 11.2 253 Standard B19E, B21E
Gr.A 10.24 252 SAM Group A engine
Gr.A T5 11 267 SAM Group A engine, extreme
GT6 12.5 312 107 KG-trimning Volvo racing
H 12 11.5 272 268 Standard B23E (79-80)
K 11.95 270 257 110 Standard B23E (81-83), B19 Sport, B230 Penta marine engine
L 9.8 252 Standard B19A, B21A (84), B21F-MPG (80-82 US & Can.), B200K
M (F) 9.5 10.5 242 234 Standard B21F (77-80 in US & Can.), B21F, B23F, B200F/G, B230F/FD
T 9.94 225 218 109 Standard B19ET, B21ET/FT, B23ET/FT, B200FT, B230K/FT/FK/GT
V 11.27 245.4 Standard B200E, B230E
VX 11.37 10.65 245.4 236.2 111 Standard Sport, V-intake, X-exhaust
VX3 11.37 10.65 245.4 236.2 111 Standard Sport, new style, VX advanced 3 degrees. B230EB/FB/G
X 10.65 236 Standard B230K
Y 10.35 232 Standard B200K
KG001 11.4 290 110 KG-trimning Street cam, good torque, HP increase 10-15HP on B21E/F
KG002 11.9 300 110 KG-trimning Much torque, a little more "bite" than KG001-cam, not for B21
KG003 11 304 110 KG-trimning Street cam, HP increase 15%, one step up from KG002-cam, not for B21
KG004 11.95 270 257 110 KG-trimning Substitute for Volvo K-profile
KG2T 10.5 11.9 300 114 KG-trimning True turbo cam, awesome torque. A-intake, K-exhaust, Long duration
KG7 12.2 304 105 KG-trimning Requires step 2 head
KG8 13.4 315 104 KG-trimning Best cam for rally and street
KG9 12.7 324 104 KG-trimning 2.3L cirquit racing
V16 Sportkam 12.2 268 109 ENEM Rev?s very high, B21/23/230
V16 Turbo Sportkam 12.2 268 112 ENEM Step 2/3 turbo, B21/23/230
K13 Sportkam 12.5 280 106 ENEM Step 3, B21/23/230
K15 Sportkam 12.5 292 108 ENEM Step 3/4, B21/23/230
K20 Rallykam 13 300 104 ENEM Step 4/5, B21/23/230
K14 Sportkam 12.5 304 108 ENEM Step 4/5, B21/23/230
M1 Sportkam 11.6 296 107 ENEM Step 3/4, B21/23/230
C2 Rallykam 13.9 292 104 ENEM Step 4/5, B21/23/230
V15 Sportkam 11.9 256 109 ENEM Substitute cam, much torque, B21/23/230
V15 Turbo Sportkam 11.9 256 112 ENEM Substitute cam, much torque, B21/23/230
K25 Rallykam 14.5 308 104 ENEM Step 5, 37mm lifters required, B21/23/230
K25/K20 Rallykam 14.5 13 308 300 104 ENEM Step 5, 37mm lifters required, B21/23/230
K21 Rally 13.5 308 104 ENEM Step 5, B21/23/230
K22/K21 Rallykam 14 13.5 320 308 104 ENEM Step 5/6, B21/23/230
K24 Rallykam 14.5 316 104 ENEM Step 5/6, 37mm lifters required, B21/23/230
K24/K25 Rallykam 14.5 316 308 106 ENEM Step 5/6, 37mm lifters required, B21/23/230
K26/K25 Rallykam 14.5 324 316 106 ENEM Step 6, 37mm lifters required, B21/23/230
K27/K24 Rallykam 15.5 14.5 316 106 ENEM Step 6, 38.5mm lifters required, B21/23/230
SPM Turbo cam 12.5 292 117 SPM May require head-work and 37mm lifters
IPD Turbo cam 11.95 256 112 IPD Same as ENEM V15-profile
 
KG2T 10.5 11.9 300 114 KG-trimning True turbo cam, awesome torque. A-intake, K-exhaust, Long duration
Click to expand...

IIRC someone on the boards is making the A-intake K-exhaust cam on here for $250 dollars or so, I think it was stereophile33(Jonathan).
 
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