hello all

Just wanted to know "how long do 93 rx7 stock turbos usually last for"?

can they be rebuilt? its probably be cheaper to do than replacing it brand new, right?

if I do come to replacing it which is the best place to go for replacement?

thanks for the help

 

Rebuild is your best bet. Buying used is a crapshoot at best. You might get lucky you never know but there are just some things you can't see with just pictures. If I were you, I would either upgrade or have your turbo rebuit.

 

They typically last for 70k miles or so. YMMV, though. Mine went for over 100k before they fizzled.

 

RX7.com has a source for rebuilding. They also sell new OEM "99 spec" turbos for about $2,500.

 

Mine survived three engines, and were still "good" at 124K miles when I replaced them with '99 Spec twins. I'm not sure what happened with the first engine (wasn't the owner then), but the second engine overheated and the 3rd lost a couple of apex seals.

Here are your options (in ascending cost order):

Used
Rebuild
Pettit upgraded twins
BNR upgraded twins
New '99 Spec

Good luck with whatever you decide.

 

dont the bnr stage 3 turbos help produce a little more power than the 99 specs?

 

is the new 99 spec turbo worth the money? i mean it suppose to be better right than the stock set, right?

 

You may want to look at BNR turbos---I am very satisfied with mine.

 

99 turbos are stock hehe just not stock for our FD's. IMO they are expensive for what you get. Your better off rebuilding your turbos and getting the BNR treatment. Id just get a rebuild and call it a day.

Are you sure your turbos are even bad or just thinking ahead?

 

Thanks for the advice Raziel. I'm just thinking ahead and trying see which is the best option to go with and of course depending on budget too.

 

okay guys. where is the best place to get turbo rebuilt kits?

 

"Rebuilt" is not the right word.

You are looking for "rebuild."

As in: "a turbo charger rebuild kit."

Nothing personal, it's just one of my pet peeves.

As far as advice goes: check out the BNR's. There are quite a few happy members with the BNR's.

 

Just wanted to chime in that I'm really happy with my Pettit turbos. Those coupled with a Pettit Unlimited ECU and my FD runs at a rock-solid 12psi and has been transformed.

(scroll down about 1/2 way for more info on the BPHF turbos)
http://pettitracing.com/rx7/index_turbo.htm

 

Don't bother with a rebuild kit. In order for the turbos to work and last, they need to be balanced after being rebuilt. Can't do that at home.

Summarized version:

"99 spec" aka efini OEM turbos from RX7.com offer a little better efficiency than the OEM USDM turbos. From various people I have spoken, I believe that the 99s spool a little faster. They are smaller after all.

BNR turbos bolt in place of the stock turbos and are bigger and have other parts that make them interesting. Bigger turbos like the BNRs usually provide the ability to make more power - IF other air flow and tuning mods are mods. There are various other changes that make BNRs interesting - like the bearings and oil seals and such.

Most people don't push the BNRs enough for there to be lots of dynos of them pushing out big power but the potential does seem to be there.

You might want to research and Search on past threads for more info and comparisons between the 99 and BNR turbos. I don't think anyone that really knows what they are talking about feels like retyping that information when it can be found by searching.


Also spend some time reading the FAQ thread stickied in this forum. All of this information has already been documented and the FAQ has good links to threads with this info.

 

Thanks for the advices gracer7-rx7

 

BNRs all the way i was thoroughly impressed with my power output with all the supporting mods looking to bump to stage 3s tho

 

If you car is all stock and you go with BNRs, you'll need to install a boost controller. They are a nice power upgrade while still being sequential.

99 spec is the same basic power as stock turbos. If you buy a brand new set of turbos the 99 spec happens to be cheaper, but both are around $3k.

Rebuilds are notorious for not holding up with these turbos. Good used turbos can work out very well for much less money than the rebuild option. If I were going the rebuild route I would only use the rebuilder through rx7.com. Reason being, this rebuilder should be able to get them right.

Dave

 

Stock twins are a waste of time in my opinion. If you must stay with twins, BNR or 99s. I wouldn't consider anything else.

 

I know someone selling new 99's for cheap.