Discussion
I think my LS1 needs a rebuild but what to do?? I have a Harrop HH122 fitted (9psi)
When I bought my ute it was smelling a bit rich which I thought could be easily fettled, I later found out it has a lumpy N/A cam fitted and I think it has been thinning the oil as the motor is breathing badly and kicking oil out the breather pipes and running into the air filter. I have only noticed it since I have been running my diff in so 50mph tops.
Not sure whether to get mine rebuilt, or rebuild will forged pistons and rods and a set of heads, or get a create engine and bung my s/charger on it. Mine is supposed to be 522rwhp but I was talking to an engine builder and he said 'no way not on his dyno'! Maybe 535 at the flywheel.
Would my HH122 fit an LS2 with the existing LS1 s/charger inlet, exhaust manifolds etc??
I have even thought about an LS376/525 to drop in as long as exhaust manifolds fit.
Plus my box has a bearing on it's way out too! When it rains it really does
poor.
When I bought my ute it was smelling a bit rich which I thought could be easily fettled, I later found out it has a lumpy N/A cam fitted and I think it has been thinning the oil as the motor is breathing badly and kicking oil out the breather pipes and running into the air filter. I have only noticed it since I have been running my diff in so 50mph tops.
Not sure whether to get mine rebuilt, or rebuild will forged pistons and rods and a set of heads, or get a create engine and bung my s/charger on it. Mine is supposed to be 522rwhp but I was talking to an engine builder and he said 'no way not on his dyno'! Maybe 535 at the flywheel.
Would my HH122 fit an LS2 with the existing LS1 s/charger inlet, exhaust manifolds etc??
I have even thought about an LS376/525 to drop in as long as exhaust manifolds fit.
Plus my box has a bearing on it's way out too! When it rains it really does
poor. ArnieVXR , Box is a little noisy bearing wise but not horrible by any means, and motor is pushing oil along the breather pipe and dribbling out of the throttle body into the air filter. I only noticed it by the oil on the floor of the garage. I have ordered a catch can that is tuneable and puts the fumes back into the inlet and oil in the base of the can.
gsd2000 , Yep sure is.
Hello Craig, I know Dynos can vary from place to place and I have seen similar speced LS engined Holdens for sale with similar dyno figures too. I'm still loving the ute even though I have had a few bits and bobs to sort out. Nothing has gone wrong yet engine wise, it is burning a bit of oil but I put that down to it running so rich. Saying running rich it burns my eyes and I can't drive with the window down or I feel ill for hours after driving it, I noticed it when I first drove it home. I thought I noticed a little rattle from the bottom end the other day but I may just have needed to change down a cog. I'll give it an oil change to see if that helps.
Hello Gary, I have a printout somewhere with 170mph on it, I've put a 3.9 crown wheel and pinion in it now with a Kaaz LSD, not sure that it would do 170 now. Do you still have your ute?
Stevieturbo , I'll give it a compression test once I find out who I lent my compression tester to.
MyM8V8 , Maybe LS2 upgrade, sounds good. The cam is for N/A motor and I would have thought there would be too much valve overlap, it comes on cam at about 4000rpm .
ringram , I think you could be right there.
gsd2000 , Yep sure is.
Hello Craig, I know Dynos can vary from place to place and I have seen similar speced LS engined Holdens for sale with similar dyno figures too. I'm still loving the ute even though I have had a few bits and bobs to sort out. Nothing has gone wrong yet engine wise, it is burning a bit of oil but I put that down to it running so rich. Saying running rich it burns my eyes and I can't drive with the window down or I feel ill for hours after driving it, I noticed it when I first drove it home. I thought I noticed a little rattle from the bottom end the other day but I may just have needed to change down a cog. I'll give it an oil change to see if that helps.
Hello Gary, I have a printout somewhere with 170mph on it, I've put a 3.9 crown wheel and pinion in it now with a Kaaz LSD, not sure that it would do 170 now. Do you still have your ute?
Stevieturbo , I'll give it a compression test once I find out who I lent my compression tester to.
MyM8V8 , Maybe LS2 upgrade, sounds good. The cam is for N/A motor and I would have thought there would be too much valve overlap, it comes on cam at about 4000rpm .
ringram , I think you could be right there.
Arnie I don't know when the box was last replaced or out , I should have posted this earlier when I had the s/charger off I could have modded the breather but I would say it wouldn't be to hard to convert. I had a look on the net and job looks pretty straight forward. If you have any suggestions on a crate motor I'm all ears, are there many people in the U.K that sell crate engines?
MyM8V8 The cam is a Comp cams XR cam so I was told but I don't know anymore than that apart from the cam comes on cam at 4k. As for the 3.9 diff, I find the ute nicer to drive with the new ratio and it seems to be perfect for Manx roads, no motorway over here. I was talking to Dave about his F150 a few months back, I'm sure you know how it goes, we pays our money and we takes our chance. I'm sure you know what I mean.
What sensors would you be suggesting? I replaced both lambda sensors as I knocked one off the bench and broke it internally so I thought I would buy a pair.
As far as I am aware it isn't smoking and it is very thirsty, as far as I can remember as I haven't been driving it that much since buying it something like 150 miles ish to a tank. But that is driving it not sitting in traffic etc and we have no problems with giving it the full beans on our roads.
MyM8V8 The cam is a Comp cams XR cam so I was told but I don't know anymore than that apart from the cam comes on cam at 4k. As for the 3.9 diff, I find the ute nicer to drive with the new ratio and it seems to be perfect for Manx roads, no motorway over here. I was talking to Dave about his F150 a few months back, I'm sure you know how it goes, we pays our money and we takes our chance. I'm sure you know what I mean.
What sensors would you be suggesting? I replaced both lambda sensors as I knocked one off the bench and broke it internally so I thought I would buy a pair.
As far as I am aware it isn't smoking and it is very thirsty, as far as I can remember as I haven't been driving it that much since buying it something like 150 miles ish to a tank. But that is driving it not sitting in traffic etc and we have no problems with giving it the full beans on our roads.
I'll do a compression test at the weekend and see how it goes from there, I don't have the leak down gauge set but if need be I'll borrow one and that should give a bit more info. Nice new catch can arrived today so I'll get it fitted after compression test is all done, that is unless I have a holed piston. 
Compression test was when the engine was cold too, hands an hot manifolds don't mix. Here is a pic of the plugs from right to left, first on the right is drivers side front cylinder and opposite on the other side. Front plugs are slightly oily due to oil coming out of the breather pipe that goes into the inlet.
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