cam for my eforce

[forklord]

Got a tsp blower cam but i dont think my e force likes it. Surges and bucks after a few retunes. Do you think its my tuner or the cam? Only been remote tuned. Thinking aboit a wideband and getting c.o.w. to tune it since they have experience with cammed eforces. Anyone have any experience with the eforce in this area? Is this normal for any big cam setup or should i look for a custom grind? Thanks

[bcguy]

Mine surges at an idle once it gets warm when I first start it in morning works fine tried a couple times to tune it out but still does it Not sure if your prob is the same but once I smooth it out and under throttle it runs great

[camarossdusk]

definitely get a wideband so much easier to monitor with.

[realcanuk]

What are the cam specs?

[forklord]

227/235 639/646 114lsa

[realcanuk]

Not an expert here but seems pretty aggressive, and might be hard (or impossible) to get it not to surge at all.

Wouldn't think you need anything near that big to make power with an eforce. I am a believer of custom spec'd cams. There are many things to consider in choosing, including how you want the car to run in normal driving.

[forklord]

I can live with it if its gonna get me more power. i just dont want it to hurt anything over time. anything under 1500 rpms when no throttle is applied it bucks a lot. i always cruise in town at just under 2000 rpm to prevent bucking. first gear is stupid torqy though. besides that it drives awesome. when it bucks my clutch chatters too when im going slow. but im finally getting my new mantic put in. see how that helps. my chev dealer just bought a dyno too so we'll see what power its putting down first i guess.

[realcanuk]

I guess everyone has to decide what they like or don't. I would hate my car under those conditions. I have a lot more mods than you do, but with an eforce and pretty mild cam I'm making about as much power as an eforce can. This idling at 700 through an auto with no surging or bucking.

[old motorhead]

A cam the size you are using is a total waste under a TVS2300. Sure, it sounds cool....and if that's REALLY important to you, keep it. The cam I'm using in my LS3 with Maggie TVS2300 is a custom grind Comp 224/234 116+2 using milder LXL lobes. Compared to yours, mine is a -3 degree overlap cam vs your +3 degrees of overlap. Doesn't sound like much, but the lobes used on yours are way more agressive with more lift. That makes a difference too. Mine will not sound quite as cool, but will have way better manners, and will leave little if any power on the table.

[realcanuk]

Originally Posted by old motorhead

A cam the size you are using is a total waste under a TVS2300. Sure, it sounds cool....and if that's REALLY important to you, keep it. The cam I'm using in my LS3 with Maggie TVS2300 is a custom grind Comp 224/234 116+2 using milder LXL lobes. Compared to yours, mine is a -3 degree overlap cam vs your +3 degrees of overlap. Doesn't sound like much, but the lobes used on yours are way more agressive with more lift. That makes a difference too. Mine will not sound quite as cool, but will have way better manners, and will leave little if any power on the table.

I agree. Sort of what I was trying to say. My cam is not too far from those specs and has perfect drivability. Also -3 overlap if I remember correctly.

[old motorhead]

Originally Posted by realcanuk

I agree. Sort of what I was trying to say. My cam is not too far from those specs and has perfect drivability. Also -3 overlap if I remember correctly.

I think you told me your specs a while back. I've slept too many times since then. I used to have a good brain for numbers. Not so much any more

I've been running TVS2300's since 2008. I've had bigger and smaller cams under them. That 224/234 116+2 is my own personal sweet spot for TVS2300 cams. That's as aggressive as I'd want to go. You actually won't leave much on the table with a slightly smaller cam either. At that point it becomes a personal preference thing. I like to go as aggressive as I can without giving up good manners. I like a slightly rough idle as long as it doesn't come with buck, surge, and rock.

[forklord]

Yeah i was told it would be a streetable cam with big power...not knowing a lot about cam specs at the time for these motors, especially blown. I think keep her like this for a bit and probly get one specd out next year

[bovi]

I'm having a custom grind myself, maybe i could ask what are the specs if they still have it but its kinda agressive and makes a wonderfull combo with an upgraded pulley e-force.

[EDFHOBBIES]

Originally Posted by forklord

Got a tsp blower cam but i dont think my e force likes it. Surges and bucks after a few retunes. Do you think its my tuner or the cam? Only been remote tuned. Thinking aboit a wideband and getting c.o.w. to tune it since they have experience with cammed eforces. Anyone have any experience with the eforce in this area? Is this normal for any big cam setup or should i look for a custom grind? Thanks

GD if you find the answer pls let me know!

I been back to tuner 3 times..

1. seems to stall while trying to reverse or going over speed bumps.
2. while coming to a stop sign/light the motor will rev to 18-1900 for no reason after coming to a complete stop.
3. taking off is fine, driving is fine, full throttle is fine, engine breaking is fine, and idle is fine after it surges once some days better than others ..

Problem seem just when no load on it and coming to a stop, it surges with clutch in or out of gear. and backing or pulling in to a parking spot or going over a speed bump you can kill it way to easy!

my tuner said he forgot to tune with the AIC like with ac on, it helped a lot but still not quite right.

I'm thinking it could be a mechanical problem, like the computer can't react to the TB fast enough of the TB is slow to react..

just embarrassing other than that it drives good!

Cam specs are 231/248 .617"/.595" 120+5