Aluminium back plates for AJP 4.5
Discussion
The fibreglass back plates on my air boxes have collapsed quite badly. After trying to source some replacements, I decided that it would perhaps be better if I had a set made up from aluminium. Couple of pics below. They still need cutting to fit, will post some more pics once I'm done. Would be good to know if anyone else would be interested in replacing theirs.
Hi Adi! I know that you were the owner of the car prior to the guy I bought it off of. She was in really good condition and you can be safe in the knowledge that I will continue to make sure she wants for nothing and is kept driven :-) Use her as much as I can, just a sheer pleasure to be out in her!
Cracking on with the air boxes this weekend, should get them welded up on Monday and refitted. Picture below.
I was wondering if you have any further information on the history of the car during/prior to your ownership? I had a coil pack fail on me a couple of months back and replaced it myself, in true Cerb style it was a complete mission as the riv nut mounting plate was fecked to bits. However, in doing so, I had the ECU open to connect my diagnostics, and noticed an Austec racing sticker on top of the EEPROM, so I am guessing has been remapped at some point (my regular mechanic and another TVR nut who inspected the car before I bought it said that it is one of the strongest pulling 4.5s they have driven). Would be great to have any more info on work like this that is not documented.
Hope all is well with you,
Cheers,
Leigh
Cracking on with the air boxes this weekend, should get them welded up on Monday and refitted. Picture below.
I was wondering if you have any further information on the history of the car during/prior to your ownership? I had a coil pack fail on me a couple of months back and replaced it myself, in true Cerb style it was a complete mission as the riv nut mounting plate was fecked to bits. However, in doing so, I had the ECU open to connect my diagnostics, and noticed an Austec racing sticker on top of the EEPROM, so I am guessing has been remapped at some point (my regular mechanic and another TVR nut who inspected the car before I bought it said that it is one of the strongest pulling 4.5s they have driven). Would be great to have any more info on work like this that is not documented.
Hope all is well with you,
Cheers,
Leigh
Hi guys,
Thanks for the comments, highly appreciated :-)
I bought the trumpets of eBay... here is the link for the ones I purchased: http://tinyurl.com/pygvmqh
Cost around £100 for all eight. They will need modifying as they are too wide to sit together with the port arrangement, so I shaved around 1/4 - 1/2 inch off of opposite sides and welded them together in a row. The trumpets are OK quality but not perfect, but they worked well for me.
I didn't do any fancy calculations at all. I worked on the engineering principle that if it looks right, it probably is right. It certainly is a lot better than is was before and there has been no noticeable drivability change (I have not had the car remapped at all). I am sure flow is a little different to what it was before and the dynamics have changed, but not enough for me to really notice anything. The main reason for doing it was that the old ones had completely collapsed, rather than looking for a performance improvement. That said, I will for sure look at having the car mapped at some point in the future when time and funds allow.
As for transferring more heat into the intake air charge, I am not really convinced the impact is anything other than negligible, certainly no effect that has made itself felt through drivability or behavior. I am sure that if we get down to individual horses, AFR decimal points at different transient loads, etc., there is a change. But then instead of counting individual horses, I am just our driving her hard when situations permit and happy in the knowledge that no unwanted material is making it into the cylinders due to crazy large cracks between the original fiberglass back plates and intake hoses :-)
Thanks for the comments, highly appreciated :-)
I bought the trumpets of eBay... here is the link for the ones I purchased: http://tinyurl.com/pygvmqh
Cost around £100 for all eight. They will need modifying as they are too wide to sit together with the port arrangement, so I shaved around 1/4 - 1/2 inch off of opposite sides and welded them together in a row. The trumpets are OK quality but not perfect, but they worked well for me.
I didn't do any fancy calculations at all. I worked on the engineering principle that if it looks right, it probably is right. It certainly is a lot better than is was before and there has been no noticeable drivability change (I have not had the car remapped at all). I am sure flow is a little different to what it was before and the dynamics have changed, but not enough for me to really notice anything. The main reason for doing it was that the old ones had completely collapsed, rather than looking for a performance improvement. That said, I will for sure look at having the car mapped at some point in the future when time and funds allow.
As for transferring more heat into the intake air charge, I am not really convinced the impact is anything other than negligible, certainly no effect that has made itself felt through drivability or behavior. I am sure that if we get down to individual horses, AFR decimal points at different transient loads, etc., there is a change. But then instead of counting individual horses, I am just our driving her hard when situations permit and happy in the knowledge that no unwanted material is making it into the cylinders due to crazy large cracks between the original fiberglass back plates and intake hoses :-)
Gassing Station | Cerbera | Top of Page | What's New | My Stuff