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debaron
Original Poster
555 posts
66 months
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Hi all, Just got back from picking up my Range Rover 4.6 engine.  It's looking pretty sorry for itself in the back of my van right now but eventually It's going to be 'converted' to TVR 4.5 spec as a replacement for my 3.9 non-crossbolted aging engine. It's going to be going off to Rob at V8D for flanged liners, new cam bearings and honed. Then the crank is going to be reground and the bottom end will be rebuilt with ARP studs and all balanced. I'll be putting a MC1 or Stealth cam in and topping it off with Stage 3 heads from V8D. I'll put pics up and will no doubt be bothering everyone with technical questions now and again! Very excited! if anyone has any tips or advice please let me know PS - trying to track down a copy of Des Hammill's RV8 book but nobody seems to have stock. If anyone knows of anywhere that has any please let me know. Ryan
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TV8
1,098 posts
44 months
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Sounds good. What power are you hoping for?
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debaron
Original Poster
555 posts
66 months
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Well they say about 265 - 275 at the flywheel with those mods - the big valve heads prob making the big difference.
My 3.9 had 220 at the fly on Austecs road so an extra 55 horses will be nice!
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haircutmike
6,712 posts
73 months
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With heads, cam, trumpets, inlet porting and induction, you should easily see over 300 horses.
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450 Paul
41 posts
61 months
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I have a 450 with V8D stage 3 heads and the inlet ported and matched, opened trumpet base and shorter trumpets, throttle opened up etc and they did a great job.
I went with the original spec cam on the reccomendation of Dom at TVR Power and I am glad I did this as I still have greater torque than BHP and it pulls in any gear. I didnt want a engine that didnt pull from low down or that I had to rev the nxxs off to get max power.
Its making 341 BHP and just over 360 lbs torque and I change at 5500 revs to keep it on max power.
Good luck with the rebuild.
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450 Paul
41 posts
61 months
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I have a 450 with V8D stage 3 heads and the inlet ported and matched, ported trumpet base and shorter trumpets, throttle opened up etc and they did a great job.
I went with the original spec cam on the reccomendation of Dom at TVR Power and I am glad I did this as I still have greater torque than BHP and it pulls in any gear. I didnt want a engine that didnt pull from low down or that I had to rev the nxxs off to get max power.
Its making 341 BHP and just over 360 lbs torque and I change at 5500 revs to keep it on max power.
Good luck with the rebuild.
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cliffords
460 posts
36 months
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Very interested in this thread as I will later this year be converting my cross bolted 4.0 to 4.6 with a crank and pitons from a 4.6.
What are you going to do about the ECU ?
David
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Alexdaredevilz
4,246 posts
48 months
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cliffords said: Very interested in this thread as I will later this year be converting my cross bolted 4.0 to 4.6 with a crank and pitons from a 4.6.
What are you going to do about the ECU ?
David I thought that combo with the 4.0 pistons gives a nice higher compression?
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tr7v8
3,999 posts
97 months
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debaron said: Hi all,
PS - trying to track down a copy of Des Hammill's RV8 book but nobody seems to have stock. If anyone knows of anywhere that has any please let me know.
Ryan
I have a copy here of the Hardcastle book which is unwanted but there is also a copy on fleabay at the mo.
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debaron
Original Poster
555 posts
66 months
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cliffords said: What are you going to do about the ECU ? Megasquirt is the only way to go from a cost/performance point of view. If not I'd have to build the engine up and then go best guess from MA or get it towed to Austec / MA for RR (£££'s). From what I've read on The Resource Megasquirt is pretty easy to tune - plus am keen to get rid of AFM/Stepper and rest of the troublesome Lucas crap! Ryan
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cliffords
460 posts
36 months
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Ryan
Have you priced up the megasquirt yet ?
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debaron
Original Poster
555 posts
66 months
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cliffords said: Ryan
Have you priced up the megasquirt yet ? http://www.extraefi.co.uk/RV8_Kits.html 3rd one down - £580 - should be ideal I reckon All the bits and bobs plus direct fire coils so no EDIS8 module.
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debaron
Original Poster
555 posts
66 months
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Ok - well stage 1 is done! Stripped the engine down to block and crank to send to V8D    Engine stand is really handy  Pistons came out no probs  Crank seemed to be in very good nick  Not so for the main bearings - 1 and 3 (counting from front) were in a shlte state    No dramas encountered yet!  I guess stripping it is the easy bit. Going back together will be the PITA!
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debaron
Original Poster
555 posts
66 months
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Well its been a while! So far have had the block sent off to Rob to be fitted with flanged liners, original pistons pocketed, fully balanced and bottom end rebuilt. Went with standard main cap bolts and the crank didn't need regrinding in the end. All came back looking great:   ARP Head Studs went in    Cam wise - went with a Crower 50233 in the end. After much contemplation I decided that I did want a good degree of the power to be 'up top' Ok so driving around town in the traffic might not as smooth but I guess it makes it a bit more reassuring when you know you're not going to spin the wheels up til you hit 3000. Makes those tight pull aways from junctions in the wet a bit less hairy!! Got the Cam nose ground so I could fit the retaining plate (Thanks to Rob again - PS Rob - found the plate in with the inlet manifold - which I totally forgot I'd even ordered!!)     Next up - Heads: Decided on Stage 3 Heads from V8D again - they really are a thing of beauty!    Now to the rocker assemblies. After a bit of debate it was decided to use decent second hand rockers with new shafts due to the trouble (cost) of getting hold of new genuine RV8 items (£40 a rocker!!) and the fact that the steel aftermarket rockers have misaligned oil holes and the pushrod seats are all at different heights. Secured a low mileage set from a nice fella in Bath for £25!   After a nice clean in the dishwasher, assembling the rockers was much easier than expected - a spell in the freezer for the shafts certainly helps. I used the John Eales outrigger posts - very nice bit of kit and worth considering on high revving engines   Bracket for holding the DTI is sorted    More tomorrow - I'll mostly be getting TDC sorted and timing in the cam
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MPoxon
2,894 posts
42 months
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Great build thread 
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Simon says
9,269 posts
90 months
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Can i take it you stayed with stock valve sizes then? nice thread 
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SILICONEKID340HP
8,366 posts
100 months
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450 Paul said: I have a 450 with V8D stage 3 heads and the inlet ported and matched, ported trumpet base and shorter trumpets, throttle opened up etc and they did a great job.
I went with the original spec cam on the reccomendation of Dom at TVR Power and I am glad I did this as I still have greater torque than BHP and it pulls in any gear. I didnt want a engine that didnt pull from low down or that I had to rev the nxxs off to get max power.
Its making 341 BHP and just over 360 lbs torque and I change at 5500 revs to keep it on max power.
Good luck with the rebuild. I have the 5l short engine with stage 3 heads ,cant understand why its only making 340hp when mine is another 500cc.Ported everything like yours.
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haircutmike
6,712 posts
73 months
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Very similar build to mine. I went for the steel rockers with adjustable pushrods, let's hope they last! What pistons are you using, 4.6? I was going to use that cam but the pr*t sent the wrong one and refused to take it back  .
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Russell Mc
444 posts
20 months
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This is pretty much the spec I want mine to be. Have the Stage 3 heads already and the 4.6 block so will be keeping an eye om this to see how it turns out. Good luck with the build.
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debaron
Original Poster
555 posts
66 months
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Simon says said: Can i take it you stayed with stock valve sizes then? nice thread Thanks Simon - they should be larger - V8D Website states that the Stage 3's have larger valves. How much bigger I'm not sure - I'll try and get a ruler across them later
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