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 what power with Vh45de
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Mattbacon

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22 posts

7-26-2005

  what power with Vh45de


hi im just in the finishing processes of transplanting a Vh45de into my car

what im wanting to know is what power are sum of u guys making with basic N/A setups, with mild mods

im new to V8's and N/A

so im looking for a good way to setup this motor to get sum more power, before looking to a turbo, or maybe supercharged setup

cheers for any advice

matt

Ezekial



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355 posts
2001 Nissan 200SX S15
Newcastle NSW
11-28-2004

 « Re: what power with Vh45de (Mattbacon)


this wont help ... but turbo it straight up ... and welcome 600 rwhp



1985 Nissan Gazelle S12 ... VH45DE-T
2001 Nissan 200SX S15 ... SR20DET
Mattbacon

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22 posts

7-26-2005

 « Re: what power with Vh45de (Ezekial)


which leads me to ask

with correct fueling and stock internals,

what HP have u guys reliably run? (as in street driven)
(even with turbo setups)

but i wana try get sum N/A HP first before going for turbo setup

John Dixon

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486 posts
300ZX-TT Z32
Birmingham UK
11-16-2004

 « 


I'm currently building mine up with 98mm bore (5.0l), 11.2:1 CR, flowed heads, custom headers and 8x45mm throttle bodies. Hoping for over 450bhp, but time will tell ...
Ezekial



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355 posts
2001 Nissan 200SX S15
Newcastle NSW
11-28-2004

 « Re: (John Dixon)


Quote, originally posted by John Dixon »
I'm currently building mine up with 98mm bore (5.0l), 11.2:1 CR, flowed heads, custom headers and 8x45mm throttle bodies. Hoping for over 450bhp, but time will tell ...
you should get a billet stroker crank with me ...

so you bored each cylinder 5 mm?

John Dixon

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486 posts
300ZX-TT Z32
Birmingham UK
11-16-2004

 « Re: (Ezekial)


Quote, originally posted by Ezekial »
you should get a billet stroker crank with me ...

so you bored each cylinder 5 mm?

Yes, 5mm overbore. Too late for the stroker now, committed to this route. Rods / pistons are made, it's all being assembled.

Ezekial



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355 posts
2001 Nissan 200SX S15
Newcastle NSW
11-28-2004

 « Re: (John Dixon)


5 mm is a fair overbore!!

would have raised the compression over 11.0:1

hmmm ... might give that a go ... 5 mm overbore and run 3.5 mm thick head gaskets to achieve 9.0:1

Mattbacon

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22 posts

7-26-2005

 « 


has anybody got a simple setup like exhaust, headers, new intake

minor mods like this, what sort of power?
and also has sumbody had a stock VH45de powerd car on a dyno?

is 200+kw wheels easy to achieve with N/A motor?

Ezekial



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355 posts
2001 Nissan 200SX S15
Newcastle NSW
11-28-2004

 « Re: (Mattbacon)


the guys on here reckon the exhaust system is close to spot on ...

send your cams to tighe

John Dixon

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486 posts
300ZX-TT Z32
Birmingham UK
11-16-2004

 « Re: (Ezekial)


If you want the gaskets made, can probably get them done for you, as the guy who did mine will obviously have the pattern. Aren't you worried about the big squish clearence with thick gaskets.

maxnix
NICO Supporter



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38 posts
1995 Q45, 1995 Q45t, 2000 Q45
Austin TX
7-22-2002

 « Re: (John Dixon)


Quote, originally posted by John Dixon »
If you want the gaskets made, can probably get them done for you, as the guy who did mine will obviously have the pattern. Aren't you worried about the big squish clearence with thick gaskets.

Not to mention timing change. Why do people think thick gaskets with boost are viable?



Brian
1995 Q45 & Q45t & 2000 Q45

Discover the power of the button!

John Dixon

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486 posts
300ZX-TT Z32
Birmingham UK
11-16-2004

 « 


Actually, Escort racing do low comp pistons I think, will try to dig out the link for them. They also do Hi comp ones for NA builds. Pricey though
Mattbacon

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22 posts

7-26-2005

 « 


i have to do a new exhaust anyway, no choice
i put the engine into the car, it is not a Q45 car

so i need a custom exhaust, i wana find a good size (for N/A at this stage)

i will turbo it (or supercharge) later on, but want to run N/A first, learn the car, get all the susp + breaks ready, and Certify the car so it is road legal

and im not in the USA by the way

cheers

p.s. anybody had a stock vh45 on the dyno? or a mildly modified one? exhaust, maybe cams?? sumbody!?!?!

Ezekial



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355 posts
2001 Nissan 200SX S15
Newcastle NSW
11-28-2004

 « Re: (maxnix)


Quote, originally posted by maxnix »

Not to mention timing change. Why do people think thick gaskets with boost are viable?

i really cant see it being a problem since i have full control over ignition timing, cam timing, VVT, etc

Its called an aftermarket ecu and a set of adjustable cam gears if necessary

John Dixon

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486 posts
300ZX-TT Z32
Birmingham UK
11-16-2004

 « 


Here's the link to escort if anyone's interested. They do low comp forged and hi comp cast pistons for the VH45/VH41
http://www.escort-us.com/
Mattbacon

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22 posts

7-26-2005

 « 


so nobody has put an exhaust on a q45 aznd dynoed it? or dynoed a stock vh45de??

sumbody must have???

Q45tech
Q45 Guru

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13721 posts
1990 Q45 323,000 miles 19.5 years ownership
Marietta , Georgia
4-30-2002

 « Re: (Mattbacon)


90 Q stock with JWT ecu reprogram ~~240-250 R WHP and 250-265 R lb/ft.

In a lighter car the cams are wrong..............anyway 330-337 gross lb/ft [JWT ecu] is quite decent for a 4.494 liter even today. The brand new designs can't make that much.......because they are tuned for the HP race numbers for marketing confusion.

The exhaust manifolds are quite good compared to any factory supplied units..........even exotics.

The problems are that the engine was tuned [cams/runner lengths-diameters to plenum] to produce peak torque at 4,000 rpm.........vvt shifts at 4600 rpm............keeping a 4300 pound car with fuel and driver and AC on smooth up a hill with a 2000 rpm @60 mph requires some low rpm bias as the load could be 5,000 pounds with fat excecutives and their luggage from airport.

The driver was expected to act as body guard so some heft was required to fill the job.



Copyright 2009. Nipuspan International Corporation. All rights reserved. This material may not be broadcast, rewritten or redistributed.
http://www.t3atlanta.com/
Mattbacon

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22 posts

7-26-2005

 « Re: (Q45tech)


hmm thats sound almost 200KW with and exhuast, thats where im hoping for

i may have to change EX manifold to make it fit

if i do i will probably go straight to turbo, so probably another 2-3months of work,

but hopefuly it will fit, and be NA for ahwile

John Dixon

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486 posts
300ZX-TT Z32
Birmingham UK
11-16-2004

 « Re: (Mattbacon)


Stay NA, sooooo much nicer than turbos
Mattbacon

Offline

22 posts

7-26-2005

 « Re: (John Dixon)


but 200KW wont be enuf for long at all

i want well in excess of 300RW KW

so i think turbo wud be a good way to go

Ezekial



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355 posts
2001 Nissan 200SX S15
Newcastle NSW
11-28-2004

 « 


the only way to go
Mattbacon

Offline

22 posts

7-26-2005

 « Re: (Ezekial)


so no dyno's??!?!!?

sumbody must have been on one!!!

 

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