Thinking of Buying a rebuilt RX-7
06-11-07, 06:40 PM
#26
I certainly understand your sentiment with regards to buying previously modded cars. I have also talked to a co-worker, who does most of the work on his Porsche 911 which he bought completely stock. He told me that if he had it to do all over again, he would buy one previously modded because of all the work and money he had to get more power out of his car. All in all though, I'm sure it depends on how well the original work was done.
He suggested taking it to a good RX-7 servicer and paying the the 500$ or so to get it completely looked over before buying it. Would there be any value to that?
He suggested taking it to a good RX-7 servicer and paying the the 500$ or so to get it completely looked over before buying it. Would there be any value to that?
And yes, it'd be very very well worth it to take any prospective car to a good RX7 servicer.
06-11-07, 10:59 PM
#27
Junior Member
Thread Starter
Join Date: Jun 2007
Location: Racine, WI
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
Thanks you have all been very helpful. I'm sort of leaning toward getting one, but I think the best advice is to wait until I can find one I like and is a good deal. Nevertheless, in the meantime I would like to learn more about the RX-7.....do they have a very comprehensive service manual?
06-14-07, 11:02 AM
#29
Junior Member
Thread Starter
Join Date: Jun 2007
Location: Racine, WI
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
Ok, so I test drove an RX-7 yesterday and I fell in love with it. So I'm pretty sure I want to go that route. I plan on driving a 350z, but from what I can tell, the RX-7 has the lightest weight to hp ratio I can find, and I've also found out the engine bay can fit an LS1 if I ever wanted to change engines. I don't know if I want to get the one I drove yesterday, so I have some questions for you guys.
1. The engine was completely modded by place called A-spec tuning in Shaumberg, IL. Does anyone here know the quality of work they do ?
2. Once the engine was modded it began gradually losing power, until the engine needed to be rebuilt. Does this mean the mods were done poorly?
3. A-spec racing has told the owner to put in two stroke motor oil in his gas at every fill up for extra lubrication for the 3mm seals......is that typical?!?!
4. A-spec racing has also told the owner that the engine can handle up to 16psi, and he is currently running at 12. Can the stock engine handle 16psi? Does the engine need forged internals?
Any help would be appreciated! Thanks
1. The engine was completely modded by place called A-spec tuning in Shaumberg, IL. Does anyone here know the quality of work they do ?
2. Once the engine was modded it began gradually losing power, until the engine needed to be rebuilt. Does this mean the mods were done poorly?
3. A-spec racing has told the owner to put in two stroke motor oil in his gas at every fill up for extra lubrication for the 3mm seals......is that typical?!?!
4. A-spec racing has also told the owner that the engine can handle up to 16psi, and he is currently running at 12. Can the stock engine handle 16psi? Does the engine need forged internals?
Any help would be appreciated! Thanks
06-14-07, 11:09 AM
#30
No, it probably means it has the fuel system to support that amount of boost (but you'd need to verify that). These engines don't really need to have internals changed out to use higher boost levels.
06-14-07, 11:15 AM
#31
Please somebody help!!!
iTrader: (1)
Join Date: Sep 2005
Location: Woodridge, IL
Posts: 1,442
Likes: 0
Received 0 Likes
on
0 Posts
1) A-spec does excellent work, you won't have a hard time finding people to speak on their behalf.
2) Yes, high power causes wear and tear on rotaries until they inevitably need to be rebuilt. This isn't the crisis many make it out to be. EDIT: this isn't because of a poor install.
3) Using premix instead of the omp isn't uncommon.
4) ErnieT's 700+hp 2rotor is using OEM mazda seals. There are upgraded internals but they aren't needed for street cars. The limit is really on fueling rather than mechanics. The stock fuel & turbos are good to about 12-13 psi. if you increase fuel delivery you can probably push 14-15psi on the stock turbos but, at that point you'll do better to switch to BNR Stage 3 twins or a single turbo.
2) Yes, high power causes wear and tear on rotaries until they inevitably need to be rebuilt. This isn't the crisis many make it out to be. EDIT: this isn't because of a poor install.
3) Using premix instead of the omp isn't uncommon.
4) ErnieT's 700+hp 2rotor is using OEM mazda seals. There are upgraded internals but they aren't needed for street cars. The limit is really on fueling rather than mechanics. The stock fuel & turbos are good to about 12-13 psi. if you increase fuel delivery you can probably push 14-15psi on the stock turbos but, at that point you'll do better to switch to BNR Stage 3 twins or a single turbo.
06-14-07, 11:46 AM
#32
Junior Member
Thread Starter
Join Date: Jun 2007
Location: Racine, WI
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
I was told that the turbos were rebuilt. Would the rebuilding of the turbos be likely to increase potential boost of them?
Thread
Thread Starter
Forum
Replies
Last Post
ncds_fc
New Member RX-7 Technical
1
08-15-15 10:06 AM
