TT turbo any one ?
#2
Registered User
Join Date: Jun 2004
Location: Houston, TX
Posts: 1,959
Likes: 0
Received 0 Likes
on
0 Posts
It doesn't need twin turbos. Twin turbochargers in an application of this type are not feasible--the added piping and vacuum hoses would create such a mess for the same output as an efficient single turbocharger. Initially, twins were used to minimize lag--but technology has improved since 1993--so the benefits of a twin setup are negated--not to mention the cost associated with such a setup.
#4
Registered User
Join Date: Jun 2004
Location: Houston, TX
Posts: 1,959
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by rotarygod
The twins on the RX-7 were terribly unreliable and overly complex. I can never figure out why people always want twins. I guess if one is good, two must be better?
#6
Registered
Originally Posted by DreRX8
Well back in the day--twins were supposed to minimize turbo lag down low--at least thats what all the technical jargon was from RX7/Supra/300ZX/3000GT brochures in '95 said. Nowadays they are redundant.
#7
Registered
Originally Posted by DreRX8
Well back in the day--twins were supposed to minimize turbo lag down low--at least thats what all the technical jargon was from RX7/Supra/300ZX/3000GT brochures in '95 said. Nowadays they are redundant.
#9
the rx8 doesn't need a twinturbo. in an rx8 its really not feasible because the added piping and vacuum hoses would make such a mess for the same out put of a good single-turbo design. twins are mainly used in an effort to minimize turbo-lag, but this is old technology so the benefits are next to zero. then you factor in the extra cost of a twin turbo design. so, in all reality, a single turbo setup is better than a dual, especially on modern cars,
#10
Registered User
Join Date: Nov 2003
Location: Cambridge, MA
Posts: 340
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by dmp
...By a vast majority, the "really fast" supra's, and FDs, etc, have all done a 'twin-to-single' turbo conversion.
:D
:D
#11
Registered
That's because they use beer keg sized turbos that are only efficient at high rpm's and boost levels. That has nothing to do with the fact that there is only one of them vs the stock two.
#13
Registered
Join Date: Jul 2003
Location: Richland WA
Posts: 284
Likes: 0
Received 0 Likes
on
0 Posts
Well, I'm very happy with the sequential twins on my FD. It can accelerate quick (or spin the tires ) from low rpm's and still put out a respectable 300+ rwhp at 13 pounds.
Last edited by Rick; 02-02-2005 at 09:47 PM.
#14
Registered User
Join Date: Nov 2003
Location: Glendale, CA
Posts: 3,281
Likes: 0
Received 0 Likes
on
0 Posts
Not to mention nobody is sure that the engine of this car can handle the extra hp that a 2nd turbo would give us. Essentially the current turbo in the Greddy kit is the 18G that Greddy uses on their twin turbo kit for the Nissan 350Z. There is a very large difference in price Nissan 350Z Greddy kit (Retail = $8,190, Street = $5,869) vs. RX8 Greddy kit (Retail $4,195, Street = $2930), not to mention the complexity of the system as stated above. Right now nobody is sure that this engine can even handle one turbo at 9 psi, let alone two. I'm sure with more research, and more installs things will change.
#15
New Member
Thread Starter
Join Date: Apr 2004
Location: other side of the world now .
Posts: 298
Likes: 0
Received 0 Likes
on
0 Posts
well i don't know so much about rotary but can you tell me the Exact difference between the FD and this ONE ?? other than the Turbo And NA ?? am assuming nothing much except Improvement or am i Wrong ?
#16
Registered User
Join Date: Jun 2004
Location: Houston, TX
Posts: 1,959
Likes: 0
Received 0 Likes
on
0 Posts
The TT setup in the RX7 was fine for daily driven use--but for big horsepower numbers a single is best--the problem is with a single you usually would sacrifice the quick spool up time (i.e. lag) of the sequentials. A single turbo also cleans up the wossness of vacuum hoses that are oh so problematic.
#17
Boost Junkie
Join Date: Nov 2003
Location: Orange County, CA
Posts: 683
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by RX8 XTC
well i don't know so much about rotary but can you tell me the Exact difference between the FD and this ONE ?? other than the Turbo And NA ?? am assuming nothing much except Improvement or am i Wrong ?
Higher Compression, Different Ports, Different Side SEaling (new design) to support new porting, new oil injection system, returnless fuel system, I could go on, but you should really just read.
Slavearm
#18
i'd like to see a twin turbo rx8...not for power, but for spoolup since the side exhaust flows like butt stock.
but i'd like to see it setup more like the supras...nice and simple.
but i'd like to see it setup more like the supras...nice and simple.
#19
Registered
Originally Posted by guitarjunkie28
i'd like to see a twin turbo rx8...not for power, but for spoolup since the side exhaust flows like butt stock.
but i'd like to see it setup more like the supras...nice and simple.
but i'd like to see it setup more like the supras...nice and simple.
Thread
Thread Starter
Forum
Replies
Last Post
JimmyBlack
Series I Major Horsepower Upgrades
273
02-10-2020 10:23 PM
05rx8mazda
RX-8 Parts For Sale/Wanted
18
11-28-2015 09:42 AM