How many Griffith 520's are there?
Discussion
I have a 500. So this is bored out (with new liners, presumably). When you quote a price for a short engine, this infers exchange. Is that right? Is the price just for the larger pistons, or does it include any head work or cams, or anything? What else would need to be done in conjunction?
I know shpub is wearing out large chunks of his drivetrain with this as the basis of his wedge engine; is this a big issue or will it require lots of other silly mods to end up like that?
I know shpub is wearing out large chunks of his drivetrain with this as the basis of his wedge engine; is this a big issue or will it require lots of other silly mods to end up like that?
Going to 5.2 on its own will not do much more than you currently have. The induction cam head work all need to be done on top to start getting the power increases. If you want to go beyond the 10ish% increase that you get, then it is yet another incremental cost above that as the injection system needs to be replaced, you need new heads etc etc etc. Now you are into bespoke engine territory and very serious money and engineering indeed. You also start to have problems with everything else.
Very litlle if any. Most of the 5.2 engines run some pretty exotic stuff (read very expensive) to get the power out of them and cost far more than a few thousand of the short engine etc.
It doesn't matter how you go about it there are no CHEAP power upgrades for the Rover V8. The Induction and chipping one is the best value and doesn't need a new cam to give good improvement. If your cam is on its way out then fine makes sense to change it. If not get the induction (bigger plenum etc) the Mark ADams treatement and then make a decision.
All comes back to how much money do you want to spend?
>> Edited by shpub on Thursday 26th February 11:01
It doesn't matter how you go about it there are no CHEAP power upgrades for the Rover V8. The Induction and chipping one is the best value and doesn't need a new cam to give good improvement. If your cam is on its way out then fine makes sense to change it. If not get the induction (bigger plenum etc) the Mark ADams treatement and then make a decision.
All comes back to how much money do you want to spend?
>> Edited by shpub on Thursday 26th February 11:01
It might but is it worth the £3500 it could take to do it?
I would also be prepared for a lot of extra cost as an 80K miler engine will be pretty tired and need a lot of TLC which I doubt is included in the price. I would consider throwing away the rockers and getting some decent steel ones. I would add the cost of a clutch as it is cheaper to change that now with the engine out.
If you are going to do a rolling road comparison, the two cars should be done at the same time as even with the same road, you can get variations depending on the day and in particular temperature.
I would also be prepared for a lot of extra cost as an 80K miler engine will be pretty tired and need a lot of TLC which I doubt is included in the price. I would consider throwing away the rockers and getting some decent steel ones. I would add the cost of a clutch as it is cheaper to change that now with the engine out.
If you are going to do a rolling road comparison, the two cars should be done at the same time as even with the same road, you can get variations depending on the day and in particular temperature.
Basically along the same lines as steve has said if you are already starting out with 500 to goo 200/300 cc's bigger you are not realy getting value for money,yes you will definetly pick up torque in the low and mid range but peak horse power wont really change all that much, again it really comes down to the fact that the injection system will only realy allow you to make around 330 bhp max and that would be a very good one at that, now take steves engine out of his wedge for instance i dont know the actual figures or the cam he is running but from what i have read it is producing around 370 bhp, if you took his engine out of his car and placed it in yours with your injection system you will still only see 320/330 bhp, which can still be achevied with a nice 500 by doing the act..... etc modifications
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