X overthrottle Boddies
Discussion
77racing said:
Yep peter will post up a spec once I have it should be a few days. Boosted is right, custom pistons take a while . I was using Ross Racing in the USA 6 - 12 week lead time but you can buy them off the shelve here in uk.
you can get the 96mm ones off the shelf but not the early 94mm pistons...ive just had to send an engine to JE in the hopes he can do something as 2mm over bore means having to have it top hat lineredIan Richardson build the bottom end.. myself and a mate the top end.
Engine is still being mapped - idles beautifully with the M256 but need to do the tricky bit, the progression. Revs nice, sounds great. Have not driven it on the road yet.
My Manifolds are very straight .. you can clearly see the backs of the valves.
We were just having a laugh with the turbo ..
Engine is still being mapped - idles beautifully with the M256 but need to do the tricky bit, the progression. Revs nice, sounds great. Have not driven it on the road yet.
My Manifolds are very straight .. you can clearly see the backs of the valves.
We were just having a laugh with the turbo ..
Edited by rev-erend on Monday 28th November 22:43
The spec is very similar to mine except 5.2, 48mm TBs and a 234 hydraulic cam. Power delivery is fantastic right through the range and delivering 335/354 at the wheels. Sound of intake is awesome, you won't be disappointed!
Is this going in a road car? The biggest issue I had with mine was emissions. If you bought the xover of the guy I spoke to he also had problems with emissions. It cost a fortune to put right which included a change of ECU. If your changing ECU pick your mapper first!!! Pm me if you want more info.
Keep us posted on progress and good luck
Is this going in a road car? The biggest issue I had with mine was emissions. If you bought the xover of the guy I spoke to he also had problems with emissions. It cost a fortune to put right which included a change of ECU. If your changing ECU pick your mapper first!!! Pm me if you want more info.
Keep us posted on progress and good luck
roseytvr said:
The spec is very similar to mine except 5.2, 48mm TBs and a 234 hydraulic cam. Power delivery is fantastic right through the range and delivering 335/354 at the wheels. Sound of intake is awesome, you won't be disappointed!
Is this going in a road car? The biggest issue I had with mine was emissions. If you bought the xover of the guy I spoke to he also had problems with emissions. It cost a fortune to put right which included a change of ECU. If your changing ECU pick your mapper first!!! Pm me if you want more info.
Keep us posted on progress and good luck
This set up is going in this..........Is this going in a road car? The biggest issue I had with mine was emissions. If you bought the xover of the guy I spoke to he also had problems with emissions. It cost a fortune to put right which included a change of ECU. If your changing ECU pick your mapper first!!! Pm me if you want more info.
Keep us posted on progress and good luck
So shouldn,t have any emission problems
I will be using Omex 710 ECU and the chap who looks after my cars specializes in supply and fit of them with in house rollers, he has my Chevrolet version of the car flying on the Omex set up. http://www.powercrazy.co.uk/
rev-erend said:
Ian Richardson build the bottom end.. myself and a mate the top end.
Engine is still being mapped - idles beautifully with the M256 but need to do the tricky bit, the progression. Revs nice, sounds great. Have not driven it on the road yet.
My Manifolds are very straight .. you can clearly see the backs of the valves.
We were just having a laugh with the turbo ..
What you doing about cold air feed and filtration of those lovely bell mouths ?Engine is still being mapped - idles beautifully with the M256 but need to do the tricky bit, the progression. Revs nice, sounds great. Have not driven it on the road yet.
My Manifolds are very straight .. you can clearly see the backs of the valves.
We were just having a laugh with the turbo ..
Edited by rev-erend on Monday 28th November 22:43
A rare thing finding someone willing to risk everything for a tenner these days.went to fetch the beauty yesterday. So finally things have moved on. Quietly excited as I think this is going to be a good step from what I had before Thruxton. Not much action now till the new year and I have to finish the repainting first and reassemble the front end, Christmas & new year will get in the way and,and,and ................
chassis looking pretty good......
And hopefully the race winner..............
chassis looking pretty good......
And hopefully the race winner..............
77racing said:
went to fetch the beauty yesterday. So finally things have moved on. Quietly excited as I think this is going to be a good step from what I had before Thruxton. Not much action now till the new year and I have to finish the repainting first and reassemble the front end, Christmas & new year will get in the way and,and,and ................
chassis looking pretty good......
And hopefully the race winner..............
The xover and ITB's really are rubbish, and I don't think you'll like them at all. Just to help out, I'd be prepared to take them off your hands for... lets say, umm... 500 quid chassis looking pretty good......
And hopefully the race winner..............
This could save you much pain in the future...
Yep Mr...
I will definatly give that offer some serious thought and I expect I will get back to you say in about five years. I have been looking at the Dyno graph that came with the engine and have compared it with what I had on the 4.5lt on carbs. Interestingly the extra 500cc adds a good amount of torque , possibly a bit high up the rev range but that can be brought down with some mapping. I have not seen a dyno graph before so am still in the dark a bit as to how the engine will feel in the real world, once I have transmission loss etc. The trick will be setting it up so on gear change we still drop the next gear shift into the thick of the torque. All exciting stuff.
I will definatly give that offer some serious thought and I expect I will get back to you say in about five years
. I have been looking at the Dyno graph that came with the engine and have compared it with what I had on the 4.5lt on carbs. Interestingly the extra 500cc adds a good amount of torque , possibly a bit high up the rev range but that can be brought down with some mapping. I have not seen a dyno graph before so am still in the dark a bit as to how the engine will feel in the real world, once I have transmission loss etc. The trick will be setting it up so on gear change we still drop the next gear shift into the thick of the torque. All exciting stuff. Edited by 77racing on Thursday 8th December 20:10
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