I am really looking to get the LE1 package from Lloyd in the near future. I will be putting it on my 75K mile well cared for LT1. I currently shift at 6000 RPM.

My absolute biggest concern is engine life with respect to spinning bearings. I want to have the most engine longevity possible, therefore my shift points will be no higher than 6300 RPM.

I understand that when you hop up the engines then reliability goes down, however I am hoping that the LE1 package does this minimally. I have also been told that with the LE2 its only a matter of time before the bearings and the shortblock go, hopefully this is not the case with the LE1.

My question.
Has anybody every had major problems like spinning bearings after installing the complete LE1 package on rather low mile LT1's? Please elaborate.

Thanks

 

I don't think it matters what cam you use when it comes to spinning bearings. Make sure you have a good clean install and like you say don't rev it too high. I don't know if using more lube or letting the new cam break in a new wear pattern on the bearings nice and easy will help since I have never done a cam swap. All my engines were new short blocks.

 

I spun bearings in my 20k short block w/ LE2 within 1000 miles of the install. What kills it is the RPM. IMO 6300 is too high for a stock short block, if you expect longetivity. If longetivity is a concern stick to your 6000 rpm shift point. also if it was me i would get at least le2 heads this way if you ever want more cam then you'll have plenty of flow to support it. Call Lloyd and talk to him. He'll set you up good.

 

Thanks,
If I decided to stay at the 6000 RPM shift point, is there any point in even having a cam swap. How well would the LE1 perform with this shift point?

 

ya alot of power to be picked up call up lloyd and tell him you don;t wanna shift above 6k and he will set you up good.

 

I agree, get some LE2 heads and tell Lloyd you want a cam that doesnt need to be reved above 6000 and he'll find you a good one. Maybe a custom one from Bret. You can still get some darn good numbers without reving super high

 

LE2 heads will gain some definite HP for ya.

One of the LE1 cams will keep RPMs low and idle tame so you don't have to
rev it into the 6500+ range (where everyone seems to spin their bearings)

I'm running an LE2 heads / LE1HL cam setup and I love it.

 

What are you shifting at?

 

The LE1-HL has more lift and lope than the LE1, but not the duration of a
LE2. Lloyd said I should be able to reach 380-400 RWHP.
I'd be very happy with those numbers.

I've got 93, (non -e 4l60), so I can't make shift point changes at the PCM.
For the time being, I'm shifting at 6000-6100. (Based on datalog data)
Once I sit it on the dyno, do a little fine tuning of the PCM and review the
curves, I can look into adjusting shift points appropriately.
(which in my case means internal tranny mods)
I have a feeling 6200-6300 is where I will want it to be.

 

I put the LE1 cam in my car with 120k miles. This car had a blown headgasket at one point so coolant went through the bearings because the previous owner tried to drive on it, so the bearings looked like crap. Having said that, I've seen 6500 more than a few times and haven't had any trouble so far. You can shift this cam at 6000. I haven't seen faster times at the track shifting any higher.

 

tiznod did you put in new bearings or just run it.

 

I would really like to see a dyno chart of the LE1 cam. Anyone have one?

 

Nope, just threw it together and its been running fine.

 

First off, this is a Mustang dyno (and a stingy one at that!). Also the A/F was off so they wouldn't rev it past 5700. Finally it has issues with detonation so there is tons of knock retard going on. I haven't dynoed it again since the tune was updated, but its 2mph faster in the 1/4 now and still has knock retard going on. So don't use this as an example of what an LE1 setup makes. This just gives you an idea of the power range.

 

http://web.camaross.com/forums/showt...light=le1+dyno