are these any good???

Shaun, tell me what will give you a 5 peak hp increase on a SR20 for that price ??
S3 cams will give around 8 peak hp, S4s around 9 peak hp. Both will give more gain higher up as the power will drop off slower, but actual peak gains will be as stated.

A header will probaby gain you about the same as cams.
A de-cat will gain you hardly anything.
An intake will gain hardly anything.





As for the GA16, the head-intake will be the same, but the TB is different. The US GA16 has a proper intake and plenum like the SR20.


I've only fitted my TB spacer up to now btw.
 
markbuts3 said:
Shaun, tell me what will give you a 5 peak hp increase on a SR20 for that price ??
Click to expand...

you can buy these chips on ebay for like £30 or somethin they give 15-20hp :rolleyes:



if one of my gaskets go's i would consider changing to these if they were of similar price, the heat will just get transferred to another part so unless you do them all or a major rebuild with a high boost turbo why bother??

the 5hp increase they quote was probably the most ever achieved on a 500hp twin turbo skyline
 
shaun said:
the 5hp increase they quote was probably the most ever achieved on a 500hp twin turbo skyline
Click to expand...

Nope, each set is dyno'd. For both the lowport and highport sets they have had a SR20forum member go to them to have them fitted and dyno'd. The lowport dyno is shown below, they, like Ian didn't get round to fitting the most important spacer....engine-intake.

RESULTS: maximum gain 3.9 whp and 3.1 ft-lbs of torque.
nissansr20lodyno2.jpg



This is a highport with all three spacers fitted...
RESULTS: maximum gain 9.1 whp and 6.9 ft-lbs of torque.

nissansr20hidyno2.jpg
 
shaun said:
if one of my gaskets go's i would consider changing to these if they were of similar price, the heat will just get transferred to another part

the 5hp increase they quote was probably the most ever achieved on a 500hp twin turbo skyline
Click to expand...


heat will get transferred elsewhere? thats the point, you stop the heat getting into your inlet system full stop. the air gets into your head a lot cooler than before, therefore when it does get heated entering the head(cant really help that) it wont reach the same high temps as before
the heat if is going to go elsewhere would more than likely just get cooled down off the coolant(thats whats it there for), or, at the most get transferred to the exhaust manifold which is also good
 
nice graph things, you gain the whole of 3-4 bhp top end but loose 20bhp at 2,000 rpm. nice ^o)
 
markbuts3 said:
Nope, each set is dyno'd. For both the lowport and highport sets they have had a SR20forum member go to them to have them fitted and dyno'd. The lowport dyno is shown below, they, like Ian didn't get round to fitting the most important spacer....engine-intake.

RESULTS: maximum gain 3.9 whp and 3.1 ft-lbs of torque.
nissansr20lodyno2.jpg



This is a highport with all three spacers fitted...
RESULTS: maximum gain 9.1 whp and 6.9 ft-lbs of torque.

nissansr20hidyno2.jpg
Click to expand...


thats very impressive..are these difficult to fit?
 
nice graph things, you gain the whole of 3-4 bhp top end but loose 20bhp at 2,000 rpm. nice ^o)
Click to expand...

They're dyno's of gains off two different engines mate not a before and after ;)
 
K33 ELV said:
They're dyno's of gains off two different engines mate not a before and after ;)
Click to expand...

yeah i know that! lol! look at the "low-port" one at 2,000 rpm :P
 
beretta93r said:
So then, NaylorGTi, Rowdy-Gti, Ragt20, Sparky-marcky, big_al1983, Markbuts3, Alan_Sri...and more are all 'numptys' for buying/wanting them then...?
Click to expand...

Add me to the list...

They work!!!
 
rlees85 said:
nice graph things, you gain the whole of 3-4 bhp top end but loose 20bhp at 2,000 rpm. nice ^o)
Click to expand...
Strange, the hp isn't shown at 2000rpm, but if you're talking about the torque, then rev 250rpm more and the drop is cancelled out, plus by 2750 they're the same.
To work that out in terms of hp, 20lb-ft at 2000rpm is 7.5hp.
 
i spoke to a few of my mates tonight and they reckon these are a pile of american bullshit+the stats, they may give a few brake on a highly tuned engine is the general opinion, or combined with another load of pish mods+ 1-2hp :cool:
 
You've just been shown two graphs which plot the results on two different engines both with and without the spacers, if you believe your mates over statistics thats ok i guess. if a bit short sighted.
 
But what if you have maxed your N/A engine out, on mods, that 5hp would make all the difference.
 
shaun said:
i spoke to a few of my mates tonight and they reckon these are a pile of american bullshit+the stats, they may give a few brake on a highly tuned engine is the general opinion, or combined with another load of pish mods+ 1-2hp :cool:
Click to expand...

were they not just taking it bad because they arent made for their metro's? :lol:
 
shaun said:
i spoke to a few of my mates tonight and they reckon these are a pile of american bullshit+the stats, they may give a few brake on a highly tuned engine is the general opinion, or combined with another load of pish mods+ 1-2hp :cool:
Click to expand...
How is the level of tune gonna make any difference ?? Cold air is more dense and contains more oxygen. A MAF will register this and fuel accordingly...

Here's the temp difference for the high port...
nissansr20hitemp2.jpg


But your mates obviously know more so you just believe them instead. In fact why bother asking anything on here when you'll just believe anything they say over what we, or basic physics, say ??

What is their opinion on cold air intakes versus a filter in the engine bay ??
 
These arent something you buy for a high bhp increase, but they do make a difference along with other modifications, especially on turbo'd, or hi-reving engines such as vtechs, where the intake temperature can raise by 30-40 degrees in some cases when you stick your foot down for a while.

Worth the money on a descent or tuned engine, but i'd put money on them being pointless on a 1.6 almera engine
 
swanny2k said:
Worth the money on a descent or tuned engine, but i'd put money on them being pointless on a 1.6 almera engine
Click to expand...

that was my point as the thread ask's, seem's to have got a bit carried away although some interesting points raised

would the test's not be affected by local conditions?
 
shaun said:
i spoke to a few of my mates tonight and they reckon these are a pile of american bullshit+the stats, they may give a few brake on a highly tuned engine is the general opinion, or combined with another load of pish mods+ 1-2hp :cool:
Click to expand...


would you not agree that reducing the intake temperature is benificial on any engine?
these reduce the intake temperature on any engine. and therefore would benefit any engine.
 
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