Tomei Arms M7655

[OIR32]

help!! ive just committed to buy some tomei arms m7655 turbs with ported stock manifolds and dumps, im running 14 psi high with a nismo cat back and m's intakes. has anyone fitted these to there stock 26, just read up they are laggy and not good for my motor..... ;( ... any advice????? thanks

[Piggaz]

don't do it. There has yet to be an impressive result. Take them back or sell them.off.

[Hadouken]

Get some -7's/-9s

[OIR32]

they're really that shit??? might keep the dumps and manifolds and hopefully i can sell the off thanks fella's

anyone else got info about them?

[Piggaz]

there was a bloke that put them on. Have a search around. Depends what you're after.

[Serpandrew]

Have a read of this: http://www.skylinesaustralia.com/forums/topic/368988-tomei-arms-m7655-on-rb26/

Long story short: More expensive than the tried and tried again garrett bolt ons (comparison to -5's seems like mostly) except laggier.

Here's the dyno graph of that guys run:

[OIR32]

thats good power but they hit full boost so late ... i think they are going to be a no go! they might be ok for a big built 26 but 7's might be what im looking for... rushed into this one a bit to fast haha, thanks agian everyone!

[Serpandrew]

How much power do you want and is this just for a street car? -7's might be a bit too small, they are the standard bnr34 n1 turbo. -9's would be better for an all rounder and still a decent upgrade.

-9's don't come with actuators standard though so you'd need to grab some with them, also a couple of the coolant fittings don't fit without modification so you can buy ones that fit for ~$70 extra.

Edited November 2, 2012 by Serpandrew

[OIR32]

How much power do you want and is this just for a street car? -7's might be a bit too small, -9's would be better for an all rounder.

yeah mate just a street car.... know idea really, my plans eventually is to do, dumps,front pipes,injectors,fuel pump,turbs, power fc.. it doesnt have to be 1000000hp but enough to blow away a v8 haha

[OIR32]

and while we are on turbos, how about TDO5-16G greddy ??? what size are they? and any good?

[Serpandrew]

Why do you want to divert from turbos that have been tested and given good results multiple times to turbos you don't know anything about?

If it's a street car just get -9s and be done with it, almost everyone else will say the same thing

[OIR32]

haha no idea mate, im green as at this. sounds like good advise to me !

thats why i love this forum. thanks

[Serpandrew]

No worries, you should have a read of the following thread btw: http://www.skylinesa...rett-gt2860-9s/

Has heaps of examples, tells you everything you need to know about these turbos and other similar options and why you shouldn't go for other turbos.

Yes it's a long thread, but you'll be fully educated and won't have second thoughts after buying them

Edited November 2, 2012 by Serpandrew

[OIR32]

No worries, you should have a read of the following thread btw: http://www.skylinesa...rett-gt2860-9s/

Has heaps of examples, tells you everything you need to know about these turbos and other similar options and why you shouldn't go for other turbos.

Yes it's a long thread, but you'll be fully educated and won't have second thoughts after buying them

rido will do, thanks again.

[OIR32]

so i seen alot of 5's 7's and 9's, what are stock gtr32 turbos? and are 5's heaps smaller than 9's? alot of people recommend the 9's which sounds good to me aslong as the lag isnt to much?

[scotty nm35]

The -9's are smaller and the most responsive of the lot. Better read the thread above and check the dyno results thread also.

[Serpandrew]

-5's are a bigger turbo, -7's are the smallest (~270-300atw?), then -9s a bit bigger (~310-330atw?), then -5s (~350-400atw) which will be laggy on a 2.6 and no good for street driving.

Don't quote me on the figures those are just estimates, for them you of course need all of the supporting mods. Have a read of that thread I linked you and it will answer all of your questions.

Stock turbos on any gtr (except the n1's) have ceramic wheels which can't take much boost, and they are fairly small anyway. All of the above are steel wheel and bigger turbos, they can take a fair amount of boost.

Just keep in mind that your engine is around or possibly even over 20 years old along with the turbos, those things have had a long life and you'd need to replace a lot to get a reliable and powerful result.

Edited November 2, 2012 by Serpandrew

[OIR32]

light bulb just went off, awesome that helps heaps thanks great link., yeah 9's are def the way i should be heading for now. might try and get a set and start on the list of supporting mods needed. thanks fellas

[Serpandrew]

How is the condition of your engine btw? Have you done any kinds of tests and how long have you had it for?

[R31Nismoid]

Closed.

Done to death.

Please ensure you use the search first.