1999 Efini Sequentail Twin Turbos
#1
Sequential Twin Turbo!
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1999 Efini Sequentail Twin Turbos
Has anyone ever upgraded to the 1999 Efini Sequentail Twin Turbos? I hear they have been improved to lessen the amount of turbo lag.
http://www.shaneracing.com/sr93trbo.html
Just scroll down untill you see " New Turbos High Performance 99' Efini RX-7."
Are they worth upgrading to?
http://www.shaneracing.com/sr93trbo.html
Just scroll down untill you see " New Turbos High Performance 99' Efini RX-7."
Are they worth upgrading to?
#2
Thats an awfully large price tag, considering the t-78 kit was the same price (before the TTs went on sale) and there are other massive single turbos for much much less.... I could see it being a good upgrade....but at that price I dunno seems a bit high.
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Sequential Twin Turbo!
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"Make a better setup." What do you mean? How much of an improvement over the 93-95's are these 99's? What kind of setup can one do with these new and improved turbos?
Originally Posted by StealthFox
definately, for that price you can make a much better setup
#5
Mr. Links
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They are cheaper at other places:
http://www.rx7.com/store/rx7/fdturbo.html
They aren't that much of an upgrade from the stock 93-95 turbos. However, if you have the stock ECU (or any non-programmable ECU), it will be cheaper to go with one of these than a single setup as you'll HAVE to replace the ECU (most likely with a few other things) with a single upgrade.
http://www.rx7.com/store/rx7/fdturbo.html
They aren't that much of an upgrade from the stock 93-95 turbos. However, if you have the stock ECU (or any non-programmable ECU), it will be cheaper to go with one of these than a single setup as you'll HAVE to replace the ECU (most likely with a few other things) with a single upgrade.
#7
Siiickkkkkk
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Originally Posted by RanFox76
"Make a better setup." What do you mean? How much of an improvement over the 93-95's are these 99's? What kind of setup can one do with these new and improved turbos?
hope it helps,
StealthFox
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#8
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NOT.
Those twin GT28Rs are $1000 more than the 99-specs from rx7.com or other places, will require a standalone ecu, and custom intercooler piping. They also run in parallel, meaning that they will spool over 1000 rpm later than the 99-specs running sequentially.....1500 rpm later if you aren't running a midpipe.
Yeah, they're just "better"...
Those twin GT28Rs are $1000 more than the 99-specs from rx7.com or other places, will require a standalone ecu, and custom intercooler piping. They also run in parallel, meaning that they will spool over 1000 rpm later than the 99-specs running sequentially.....1500 rpm later if you aren't running a midpipe.
Yeah, they're just "better"...
#9
Yes it's twin turbo...
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im haveing 99's instaled as we speak over at rotary extreme (thanx chuck) i got them for realiability reasons and they can make decent power. ill let u know how they turn out once i get my car back.
#11
Yes it's twin turbo...
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im not exactly sure how to distinguish them but here is a p of my 99's <IMG SRC="/ym/us/ShowLetter?box=Inbox&MsgId=179_1950187_176_1320_61 5096_0_29936_802512_183476892&bodyPart=1.4&YY=2532 1&order=down&sort=date&pos=0&view=a&head=b&Idx=2 " style="WIDTH: 480px; HEIGHT: 360px" height=360 width=480 vspace=5 comp_state="speed" DATASIZE="37146" ID="MA3.1120787786" ></DIV>
<DIV><IMG SRC="/ym/us/ShowLetter?box=Inbox&MsgId=179_1950187_176_1320_61 5096_0_29936_802512_183476892&bodyPart=1.5&YY=2532 1&order=down&sort=date&pos=0&view=a&head=b&Idx=2 " style="WIDTH: 480px; HEIGHT: 360px" height=360 width=480 vspace=5 comp_state="speed" DATASIZE="29575" ID="MA4.1120787786" ></DIV>
<DIV><IMG SRC="/ym/us/ShowLetter?box=Inbox&MsgId=179_1950187_176_1320_61 5096_0_29936_802512_183476892&bodyPart=1.6&YY=2532 1&order=down&sort=date&pos=0&view=a&head=b&Idx=2 " style="WIDTH: 480px; HEIGHT: 360px" height=360 width=480 vspace=5 comp_state="speed" DATASIZE="29007" ID="MA5.1120787786" ></DIV>
<DIV>
<DIV><IMG SRC="/ym/us/ShowLetter?box=Inbox&MsgId=179_1950187_176_1320_61 5096_0_29936_802512_183476892&bodyPart=1.5&YY=2532 1&order=down&sort=date&pos=0&view=a&head=b&Idx=2 " style="WIDTH: 480px; HEIGHT: 360px" height=360 width=480 vspace=5 comp_state="speed" DATASIZE="29575" ID="MA4.1120787786" ></DIV>
<DIV><IMG SRC="/ym/us/ShowLetter?box=Inbox&MsgId=179_1950187_176_1320_61 5096_0_29936_802512_183476892&bodyPart=1.6&YY=2532 1&order=down&sort=date&pos=0&view=a&head=b&Idx=2 " style="WIDTH: 480px; HEIGHT: 360px" height=360 width=480 vspace=5 comp_state="speed" DATASIZE="29007" ID="MA5.1120787786" ></DIV>
<DIV>
#12
gross polluter
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I have not ever seen any evidence that the 99+ turbos are much better than the stock turbos. The HP boost in the 99+ cars comes from increased boost and a slightly different charge path in addition to whatever gains may be from the turbo re-design. I have yet to see a dyno chart comparing stock vs. 99+ with all other things being equal.
Personally, if your stock turbos were in good shape I wouldnt spend the $ on a set of 99+.
Personally, if your stock turbos were in good shape I wouldnt spend the $ on a set of 99+.
#13
i am not a girl
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the wheel of the 99 spec turbine is a tighter fit to a housing, i forget the term for this. i dont know how noticeble the diffrence would be, but i am sure there is some. upgrading just the twins is not the only part of having a reliable car, there are a million solenoids and other things like actuators that deteriorate and dont work the same as when teh car was new. dont get a set of new twins for 3k thinking you now have a new car.
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Originally Posted by Tom93R1
Personally, if your stock turbos were in good shape I wouldnt spend the $ on a set of 99+.
I doubt they make more power but they do spool faster. My mechanic gets boost response by 2200 rpm on his car with them.....
#15
Yes it's twin turbo...
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the only reason im getting mine is cause my stockers had 100,000 mi on them and they had a crack on the secondary turbo and were leaking alot of oil. and the 99's are cheaper to buy new compared to the us-spec.
#17
Yes it's twin turbo...
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i just got my car back today w/ the 99' turbos and i love them. they spool up quick and perform great... so far. i also got y pipe, dp, 9.5 lb. flywheel. they all work great and had them instaled over at rotary extreme and they did a great job. thanx chuck
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my turbos are blown and leakin a lot of oil. i know where i can get a set of used 99 spec turbos for $300-$600 shipped. my horsepower goals are very modest, only 320-350 for now. if i go single turbo, a tial wastegate almost cost that much. one concern i have for these turbos is boost control since they are internally wastegated. i'm affraid boost creep could be a problem. what do we think of this? oh, and i would run them non-sequential.
supporting mods include:
apexi intakes
m2 large smic
greddy type s bov
cheap *** boost controller
greddy pulleys
apexi power fc
3" exhaust ( downpipe, midpipe and catback)
supporting mods include:
apexi intakes
m2 large smic
greddy type s bov
cheap *** boost controller
greddy pulleys
apexi power fc
3" exhaust ( downpipe, midpipe and catback)
#19
Original Gangster/Rotary!
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Originally Posted by mikey k
my turbos are blown and leakin a lot of oil. i know where i can get a set of used 99 spec turbos for $300-$600 shipped. my horsepower goals are very modest, only 320-350 for now. if i go single turbo, a tial wastegate almost cost that much. one concern i have for these turbos is boost control since they are internally wastegated. i'm affraid boost creep could be a problem. what do we think of this? oh, and i would run them non-sequential.
supporting mods include:
apexi intakes
m2 large smic
greddy type s bov
cheap *** boost controller
greddy pulleys
apexi power fc
3" exhaust ( downpipe, midpipe and catback)
supporting mods include:
apexi intakes
m2 large smic
greddy type s bov
cheap *** boost controller
greddy pulleys
apexi power fc
3" exhaust ( downpipe, midpipe and catback)
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