More torque/power on 2ZZ engine

[SFerrari]

Hello,

I have a 2ZZ engine, 190, and looking for filling power gap before 6000rpm lift (best would be around 4000rpm).

1) I've heard putting SE7VEN Cams Stage 2 is a good/best way to do so. Is it that good alone ?
2) I've heard also doing a MAF MOD is also good : swapp stock fuel injectors with 440cc Lotus injectors and lift MAF by a little. Someone already did it here ?
3) Swapp also stck ECU with APEXI FC... but I'm not very confortable with this solution (preferably keep stock ECU).
4) Also thinking on moving to Fidenza lightweight flywheel and Exedy St1 clutch (as mine is dieing)... for better revving...

What is best to do for you in order to get more power/torque before the lift on 2ZZ engines and keeping bill not to high ?
Is there any forum parteners that have good rates/prices on those items please ?

Thanks in advance your answers   s:D s:D  

BR

[mikek]

I have the se7en cams, competition clutches lightened flywheel and bmc carbon air box on mine and I think it's fantastic. However having never driven a standard 2zz I'm not in a position to compare them. I can say there is no dramatic jump into lift. You can hear the cam change and feel a small increase in power but apart from that it's a pretty smooth power delivery throughout the Rev range. And that's still with the standard exhaust and cat which is definitely restricting everything.

[inside]

Bump for a good question. I'm in a similar situation, having similar thoughts.

Do you have more info on maf mod? I have only heard this done on the stock 1zz, never on 2zz.

Also where's best place to buy seven cams? Are there any alternative cams?

[jvanzyl]

Spyder chat has the entire build of the maf mod on it - you can get Crower cams from MWR over in the US.

[inside]

Yeah I've read that one, but don't recall it mentions anything done on the 2zz, does it?

[SFerrari]

haven't found much about MAF mod on 2ZZ, appart one guy running PPE intake and Lotus Injectors ; but no mention on standard airbox and what result...   s:cry: :cry: s:cry:  
I'm wondering about camshaft change for better torque/power before the lift...
I have standard airbox but with HKS sport filter and increase air intake from front, which make BIG improvement, also a crazy exhaust catbox which sounds mad   s:bounce: :bounce: s:bounce:

Does any one have more feedback about cams mod on 2ZZ engine ? Which one are best to fit and where to get them at best price please ?

Cheers

[Micha]

Even though you are not pro Apexi PFC, I am convinced you can get a smooth torque curve with it without changing anything else. Just playing with valve phasing before lift and lift it self.
Then, if you want bigger numbers, you could put intake and exhaust

[MilesH]

I saw great benefits running an Apexi after trying it with a Jap spec 2zz OEM  ECU (no other changes made).

Top end figures were similar on the dyno but it allowed a smoother torque curve to be delivered and increased torque in the low/mid range.

Assuming you've done induction, manifold and exhaust, I would then consider cams as the next step.

[J03]

Stage 2 cams are definitely the way to go, makes the power delivery much more linear.

Something else to consider is poly bushing the front/rear engine mounts. These will clean up any energy loss through OE rubber bushing, making the car feel more responsive & gear changes much slicker. I can't comment on lightened flywheels, but have heard good things re quicker pickup.

[1979scotte]

Stage 2 cams are definitely the way to go, makes the power delivery much more linear.

Something else to consider is poly bushing the front/rear engine mounts. These will clean up any energy loss through OE rubber bushing, making the car feel more responsive & gear changes much slicker. I can't comment on lightened flywheels, but have heard good things re quicker pickup.

I fitted polybush inserts to my 1zz engine mounts it is much more responsive without a doubt you need less revs would recommend if you can cope with a little more noise and vibration.

[MilesH]

Stage 2 cams are definitely the way to go, makes the power delivery much more linear.

Something else to consider is poly bushing the front/rear engine mounts. These will clean up any energy loss through OE rubber bushing, making the car feel more responsive & gear changes much slicker. I can't comment on lightened flywheels, but have heard good things re quicker pickup.

I fitted polybush inserts to my 1zz engine mounts it is much more responsive without a doubt you need less revs would recommend if you can cope with a little more noise and vibration.

Where did you get yours from. I've only found one place (BRD) and he has a bit of a wait at present?

[SFerrari]

Yes polybhush is brillant idea, where to get them from please ?

I'm thinking of doing clutch Exedy S1/Fidenza flywheel. Anyone knows where to get them from at fair price ?

Same for Cam stage2, I beleive it is a good mod while changing the lift bolts and a small filter on the side. Anyone has ever ordered some here ?

Thanks

[Micha]

Directly at Crower.
However, changing camshafts is usualy done with new tappets (or should be done for reliability reasons), and it is time consuming task.
Just to be aware of it.

[SFerrari]

Directly at Crower.
However, changing camshafts is usualy done with new tappets (or should be done for reliability reasons), and it is time consuming task.
Just to be aware of it.

Hi Misha,

Do you mean new spring valves ?

On Crower websites, I couldn't find much interesting things and it is in US (I guess MonkeyWrench is good/better ?), but in Europe is there any good partner to buy from se7en camshaft, Fidenza flywheel, Exedy Clutch) ?

For Polybush I found this, is it the correct one :
 m http://www.gt4-play.co.uk/catalog/produ ... cts_id/297 m

Thks  s;-) ;-) s;-)

[J03]

Se7en checks valve clearances & re shims anything out of spec but nothing else is needed.

Some 2zz's can suffer from a bit of cam wipe/lobe wear which sometimes means the associated rocker arms need replacing, but you won't know that until the rocker cover is off & everything inspected.  s:) s:)

[Micha]

Do you mean new spring valves ?

It is usually specified by the camshaft producer/supplier whether you need or not to change the valve springs.

On Crower websites, I couldn't find much interesting things and it is in US (I guess MonkeyWrench is good/better ?), but in Europe is there any good partner to buy from se7en camshaft, Fidenza flywheel, Exedy Clutch) ?

I remeber seeing the shiping fees lower on crower website in comparison with MWR (+ they declare the price + the shipping in the total cost considered for taxes calculation)

Se7en checks valve clearances & re shims anything out of spec but nothing else is needed.

I agree with you that the most commun practice is just to put new camshafts and check for excess wear. However, I was just mentioning what is written in all engine blueprinting books. That it is better not to separate tappets (SFerrari --> poussoirs) and the cams. Because old tappets wear can initiate some damage on new cams.

[1979scotte]

Stage 2 cams are definitely the way to go, makes the power delivery much more linear.

Something else to consider is poly bushing the front/rear engine mounts. These will clean up any energy loss through OE rubber bushing, making the car feel more responsive & gear changes much slicker. I can't comment on lightened flywheels, but have heard good things re quicker pickup.

I fitted polybush inserts to my 1zz engine mounts it is much more responsive without a doubt you need less revs would recommend if you can cope with a little more noise and vibration.

Where did you get yours from. I've only found one place (BRD) and he has a bit of a wait at present?

Kirkosaurus

 m http://kirkosaurus.com/InsertsMain.html m

His are inserts that stiffen the existing mounts.
Full poly bush would be to harsh on the road for me i think.
These are a good compromise.

Also speedsource

 m http://speed-source.net/?wpsc-product=t ... ine-mounts m

And lets not forget twosrus

 m https://twosrus.com/catalog/product_inf ... cts_id=215 m

These sights have all be mentioned on this forum before and should come up if you do a search.
Also google is your friend.

[MilesH]

I fitted polybush inserts to my 1zz engine mounts it is much more responsive without a doubt you need less revs would recommend if you can cope with a little more noise and vibration.

Where did you get yours from. I've only found one place (BRD) and he has a bit of a wait at present?

Kirkosaurus

 m http://kirkosaurus.com/InsertsMain.html m

His are inserts that stiffen the existing mounts.
Full poly bush would be to harsh on the road for me i think.
These are a good compromise.

Also speedsource

 m http://speed-source.net/?wpsc-product=t ... ine-mounts m

And lets not forget twosrus

 m https://twosrus.com/catalog/product_inf ... cts_id=215 m

These sights have all be mentioned on this forum before and should come up if you do a search.
Also google is your friend.

Thanks, appreciate that.

(point taken, will do a search next time  s:) s:)  )

[1979scotte]

no worries.
I have read every post on this board for the last two years so i had it all in my head anyway.
Sad but true.

[JoeCool]

Yeah, don't full polybush unless you know what you're getting into. My car sounds like a cement mixer on start up and has some very interesting resonant frequencies because of the poly engine mounts.

[SFerrari]

I have the se7en cams, competition clutches lightened flywheel and bmc carbon air box on mine and I think it's fantastic. However having never driven a standard 2zz I'm not in a position to compare them. I can say there is no dramatic jump into lift. You can hear the cam change and feel a small increase in power but apart from that it's a pretty smooth power delivery throughout the Rev range. And that's still with the standard exhaust and cat which is definitely restricting everything.

 Hello, thanks ! Where from to buy the SE7EN cams please ? You have only changed the cam itself (both cams ?), and nothing else (springs, rocker arms, tappets...) ?

[SFerrari]

Do you mean new spring valves ?

It is usually specified by the camshaft producer/supplier whether you need or not to change the valve springs.

On Crower websites, I couldn't find much interesting things and it is in US (I guess MonkeyWrench is good/better ?), but in Europe is there any good partner to buy from se7en camshaft, Fidenza flywheel, Exedy Clutch) ?

I remeber seeing the shiping fees lower on crower website in comparison with MWR (+ they declare the price + the shipping in the total cost considered for taxes calculation)

Se7en checks valve clearances & re shims anything out of spec but nothing else is needed.

I agree with you that the most commun practice is just to put new camshafts and check for excess wear. However, I was just mentioning what is written in all engine blueprinting books. That it is better not to separate tappets (SFerrari --> poussoirs) and the cams. Because old tappets wear can initiate some damage on new cams.

Thanks MICHA  s;-) ;-) s;-)

[SFerrari]

Yeah, don't full polybush unless you know what you're getting into. My car sounds like a cement mixer on start up and has some very interesting resonant frequencies because of the poly engine mounts.

Interesting, so you wouldn't recommand it for normal road use ? Which ones are more benefit to change over other ones ?

Thanks

[mikek]

Se7en cams from lee at se7en motorsports. I have a competition clutches lightened flywheel which seems to be doing a good job.

[SFerrari]

I fitted polybush inserts to my 1zz engine mounts it is much more responsive without a doubt you need less revs would recommend if you can cope with a little more noise and vibration.

Where did you get yours from. I've only found one place (BRD) and he has a bit of a wait at present?

Kirkosaurus

 m http://kirkosaurus.com/InsertsMain.html m

His are inserts that stiffen the existing mounts.
Full poly bush would be to harsh on the road for me i think.
These are a good compromise.

Also speedsource

 m http://speed-source.net/?wpsc-product=t ... ine-mounts m

And lets not forget twosrus

 m https://twosrus.com/catalog/product_inf ... cts_id=215 m

These sights have all be mentioned on this forum before and should come up if you do a search.
Also google is your friend.

Thanks for the links ! Kirkosaurus are pretty much cheapper than other (75$ delivered, it is way cheapper than other links), are they good product ?