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forbsy
Fordmods - Getting Side Ways
Age:18
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 Posted: Thu Aug 07, 2008 7:57 pm Post subject: turbos? |
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| hey does anyone know wat 300zx turbos are? |
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EBXR8380
Fordmods - Getting Side Ways
Age:55
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| Posted: Fri Aug 08, 2008 12:28 am Post subject: |
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| As used in VG30T ? Yes they are T3 .63 A.R .. Slightly bigger than std RB30T / VL Commdore turbo... You'll need two on 6 or 8 cyl... |
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forbsy
Fordmods - Getting Side Ways
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| Posted: Fri Aug 08, 2008 5:32 pm Post subject: |
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| mmm but would it be worth it or just get a bigger turbo |
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DA22LE
Fordmods - Smokin em up
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| Posted: Fri Aug 08, 2008 6:24 pm Post subject: |
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| forbsy wrote: | | mmm but would it be worth it or just get a bigger turbo |
A lot of work to do a twin turbo.....ask urself why so many skyline owners run one turbo??? one bigger turbo is better......but not in all cases, i guess it depends how much power you want.
Cheers
Daz  |
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forbsy
Fordmods - Getting Side Ways
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| Posted: Fri Aug 08, 2008 6:28 pm Post subject: |
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ive been told that they are a gt25 and good for 180 kws but i mights just get that one for now then upgrade when i want more power
this is what i got told
They are T25's, but they are more similar to the CA18 T25's rather than the early SR ones. |
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Mr.Kiss
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Location: S.E. Melbourne VIC, Australia
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| Posted: Fri Aug 08, 2008 9:06 pm Post subject: |
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| forbsy wrote: | ive been told that they are a gt25 and good for 180 kws but i mights just get that one for now then upgrade when i want more power
this is what i got told
They are T25's, but they are more similar to the CA18 T25's rather than the early SR ones. |
LOL!! have you actually seen the size of a T25 turbo?? there f**k tiny, i wouldnt waste my time with one... |
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EBXR8380
Fordmods - Getting Side Ways
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| Posted: Sat Aug 09, 2008 12:00 am Post subject: |
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Here are my old VG30T turbo's.. These have been hi flowed with steel turbine wheels.. The lower turbo is an SC61 / t3/4 hybrid 600 h.p..
The lower turbo here is the VG30T compressor side..
From memory I made about 400 rwhp with these.. |
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forbsy
Fordmods - Getting Side Ways
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| Posted: Sat Aug 09, 2008 8:35 am Post subject: |
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| thanks looks like ill get them |
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EBXR8380
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| Posted: Sun Aug 10, 2008 12:45 am Post subject: |
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| forbsy wrote: | | thanks looks like ill get them |
Did you not believe me in first post ?? |
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DA22LE
Fordmods - Smokin em up
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| Posted: Sun Aug 10, 2008 11:54 am Post subject: |
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The following is an extract from Corky Bell's "Maximum Boost"
| Quote: | | An engine with flow capabilities greater than 300cfm (roughly 180cid) can benefit from 2 turbos. Two little turbos can slightly cut lag, as opposed to one large turbo, and allow a better balance of low-speed and top-end performance. Over 350cid, twin turbos become a virtual necessity. Do not accept the idea that twin turbo's are inherently more powerful, as too many other factors are involved. |
Hope this helps.
 Daz |
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forbsy
Fordmods - Getting Side Ways
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| Posted: Sun Aug 10, 2008 12:21 pm Post subject: |
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| yeh ok ill just wait nd get a snort kit |
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ltd351T
Fordmods Stock as a Rock
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| Posted: Sun Aug 10, 2008 4:21 pm Post subject: |
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| DA22LE wrote: | The following is an extract from Corky Bell's "Maximum Boost"
| Quote: | | An engine with flow capabilities greater than 300cfm (roughly 180cid) can benefit from 2 turbos. Two little turbos can slightly cut lag, as opposed to one large turbo, and allow a better balance of low-speed and top-end performance. Over 350cid, twin turbos become a virtual necessity. Do not accept the idea that twin turbo's are inherently more powerful, as too many other factors are involved. |
Hope this helps.
Daz |
While maximum boost is a great entry level book, that above statement is totally incorrect, with regard to larger engines needing twins, maybe back when he wrote the book, but not these days. |
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xcabbi
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| Posted: Sun Aug 10, 2008 5:08 pm Post subject: |
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Maximum boost was written how long ago now? 30 years? Turbo technology has come a loooooong way since then.
Maybe forbs was given info on the turbo's from the VG30DETT which are waaaaaaay too small for a 4L motor that can spin to 5500rpm. |
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forbsy
Fordmods - Getting Side Ways
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| Posted: Sun Aug 10, 2008 5:10 pm Post subject: |
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| lol okay guys oll tell the guy i dont wnt them |
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DA22LE
Fordmods - Smokin em up
Age:42
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Location: Kellyville NSW, Australia
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| Posted: Sun Aug 10, 2008 5:18 pm Post subject: |
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| ltd351T wrote: | | While maximum boost is a great entry level book, that above statement is totally incorrect, with regard to larger engines needing twins, maybe back when he wrote the book, but not these days. |
I agree totally, which is even more reason to consider the bad points of twin turboing. If i was turboing a v8, i would go for twins if i had the room, and a single if i didnt. A lot of factors in choosing the "right" set-up.
Cheers
Daz |
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EBXR8380
Fordmods - Getting Side Ways
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| Posted: Wed Aug 20, 2008 8:53 am Post subject: |
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Cost is the reason in most cases.. If you can get two single 300ZX turbo's then yes but fabrication is a little more involved..
The reason Supra's etc hp single is again due to cost.. But turbo tech has come along way the last few years..
It doesn't matter either way, but its much easier on an inline six to make a single turbo system..
The ZX came in single and twin turbo configuration.. The early ZX's had single and domestic Japan [Same engine in bigger car] run single gigger T3 turbo..
Into you can pick up a T70 Master power for under $1k new.. I doubt you'd get second hand twins for too much under that.. Plus it costs heaps to overhaul twins.. The have to be high flowed so both have to be overhauled... |
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