The Camshaft Mega-Thread!

[Ari G]

Use the stock ECU ,Standalone is expensive and you don´t NEED it

For everyone looking for a cam,Get a custom grind no matter what

[zenkisilvia]

Use the stock ECU ,Standalone is expensive and you don´t NEED it

For everyone looking for a cam,Get a custom grind no matter what

This is the most rediculous thing ive ever heard on this thread !!! Why get custom cams grinded if they make plenty of cams suitable for all types of driving styles and setups!!! You dont need a standalone too expsensive!!!??WOW !!!How many fast cars have u actually built ? Yeah you dont need a standalone if u dont plan on making any serious, reliable hp and how else would u be able to run different ignition timing maps fuel maps or run w/o the mafs with the stock ecu !!!! Not to mention if your running wild cams in your engine............

[maxpsistop]

has anyone had the opportunity yet to try out the HKS step 1 and stwp 2 264 cams yet with a gt2871 turbo with a 64. Which worked best for all round street performance

[Madriftshocker]

what do you mean by NON-BC? Is there a problem with these cams?

[Slideways^Jordan]

My goals for this SR20 engine setup and car are to drift with around 350 400 HP and torque possibly IDK yet. Now can somebody help me figure out what i should do about some HKS 256in step 1 or HKS 264ex step1 cams im think about to use for this engine.

ok i order a .48 turbine housing for my T3T4 50trim Dual Ball Bearing garret turbo. and the other parts on my SR are as follow my current setup i have a greddy intake manifold, peak boost exhaust manifold and PB 3 inch down pipe. My engine management system is a AEM EMS for the S13 SR20det im trying to figure out what would be the best profile HKS cam to use while retaining somewhat of a quick spool between 3500-4500

I have already ordered the HKS step1 264 exhaust cam now im trying to decide which intake cam i should get. what do you guys think the 256 or 264 HKS Step 1 keep in mind this is for drifting and i want it to be a responsive spool and tourqey i guess i could put it that way.

anyway Thanks

Jordan

[v6z24e]

Hey, new guy here with questions.

I just bought a '90 240se with a SR20 redtop in it. It's on stock boost right now, with a FMIC, Megan Racing shorty header and over sized turbo turn down pipe, 3in turbo back exhaust (w/test pipe), no power steering or a/c, has lightweight alt and water pump pulleys. For the summer I'm just gonna drive it how it is, maybe turn up the boost. (15lbs max stock right?) Over next winter I want to rebuild the top end. Greedy IM, ported head, metal head gasket, cams and a Big28. I read about it here http://www.240sxforums.com/for....html

My questions is, Running up to ~20lbs on that turbo what cams should I be looking into with the stock bottom end? I will be looking for 300-350whp. I love the sound of lumpy cammed cars, but don't understand what makes them sound that way. Also what injectors should I be looking into for that setup? They recommend the 740cc's, is that good? The car already has a Walbro 255 fuel pump.

I don't want to go to a bigger turbo because the car has the header/downpipe/exhaust on the car already, so that saves money. I also don't care to be making BIG power that is useless on the street. The car is going to be a summer toy, auto crossed occasionally (boost turned down for traction I'm sure) It will be 1/4'd a few times just to get and idea of what it can do. Mostly just fun driving, I want to know it will pull on most cars that would try and mess with me.

Thanks for any advice.

[v6z24e]

nobody?

cliffs-

Have- SR20(stock), FMIC, 3in turbo back, Walbro 255

Want- Greddy intake, head work, Big28 turbo

shooting for ~350whp, I like the sound of cammed cars

What cams should I look into, what injectors will support that power range?

[DBo]

who is running BC 264/264 cams? would you recommend them because im tryin to decide on which cams to buy.

head setup:3 angle valve jobJWT bronze valve guidesBC springs and retainersRAS

im currently using a s14 t28 but i want to upgrade to a s15 spec r t28. im goin to run about 17lbs on with turbo and i was thinkin about gettin 256/264 toda cam or the 264/264 bc cams.

ive read all 6 pages and their was very useful info. just need to see wat ppl think

[idahotuner]

who is running BC 264/264 cams? would you recommend them because im tryin to decide on which cams to buy.

head setup:3 angle valve jobJWT bronze valve guidesBC springs and retainersRAS

im currently using a s14 t28 but i want to upgrade to a s15 spec r t28. im goin to run about 17lbs on with turbo and i was thinkin about gettin 256/264 toda cam or the 264/264 bc cams.

ive read all 6 pages and their was very useful info. just need to see wat ppl think

256 might work a little better wit hthat turbo. but with my gt2871r .64 my BC264 cams worked great

[DBo]

ive read most of your first build. did you have any problems with bc cams such as timing issues

[idahotuner]

besides me being a dumbass and having them both off 2 teeth using the dimple and now the dowel on the sproket to line them up. i havent had any

[VNG704]

Lets make a new updated list of how to select the right cams. Im gonna base it on the flow rate (lbs/min) of the turbos. So to eliminate alot of "what cams should i get questions", just follow this list and you should be perfectly fine.

30-40 lbs/min - 250 duration cams 40-55 lbs/min - 260 duration cams 55-75 lbs/min - 270 duration cams75+ lbs/min - 280 duration cams

should probably say which turbo/size moves which amount of air. newbs, like me, wouldn't know considering we had to ask about cams per turbo.

quick question: I have hks 256/264 set and was thinking about buying this tuned ecu from a car that had 264/264, would this work alright on my car if all the other mods were the same(mafs, fuel pmp, injectors, etc...)?
Modified by VNG704 at 11:46 AM 3/20/2009

[VNG704]

bump for answers?!

[240sxHitman]

I was looking into the Tomei Pon cams, would they be good with the s15 t28 or the 2871r .64?

[idahotuner]

should probably say which turbo/size moves which amount of air. newbs, like me, wouldn't know considering we had to ask about cams per turbo.

quick question: I have hks 256/264 set and was thinking about buying this tuned ecu from a car that had 264/264, would this work alright on my car if all the other mods were the same(mafs, fuel pmp, injectors, etc...)?

Modified by VNG704 at 11:46 AM 3/20/2009

no it wont work because the air flow would be different.

[VNG704]

no it wont work because the air flow would be different.

Okay so my next question is how would my engine perform (powerband-wise) with that ecu and my 256/264 camshafts? Note that all mods from original car and my car are the same (s15 turbo, fueling, mafs, etc... minus camshafts). I hope this is in the right thread being partial cam specific.

[steve shadows]

Edited by mod: Contact Greg if you want to advertise your business.

and IMHO HKS makes the best camshafts, time and time again

they make the best output

[idahotuner]

pulsing and surging i am guessing lol

[smelly240]

on a maf car - the airflow is read - so the cams wont make enough difference from a 256/264 to a straight up 264 setup.

If you were "getting tuned" changes can be made, but for a mail order tune like that - its going to be set up pretty generic already anyway.

[colt75]

just curious,at some point in the future i want to get a TD06 l2 20g 8CM , for sr20det...

I currently have a GT2860RS Disco Potato on my Sr20..

will running 264/272 cams between now and the time i get the TD06, which could be a few months, be bad for the disco potato?

And how will running these larger cams affect the gt2860rs?

If anyone has any ideas, that would be awesome!

[DrifterProdigy85]

Youll see peak tq a couple hundred rpms later in the powerband.

[240sxHitman]

hey drifter, whats your take on the Tomei Poncams and are they good for low or top end?

[Nismo_Chris]

That's dope, I almost have an anxiety attack just thinking about all the work and things I need to get though

That S*** is no joke. I am right there with you. Late reply I know.Just going through this thread to buy my cams... well, everything I need to build my motor.

[kentuckyslider]

hey drifter, whats your take on the Tomei Poncams and are they good for low or top end?

Poncams or 256's only if your staying with a S15 turbo or smaller. IMO

2871R or 3071R- tomie 260 procams, HKS 264 step 2, or JWT S3/S4 (IMO this is the best setup on the SR unless you are flat out drag racing)

Anything GT3076 or larger(55lb/min+) go tomie 270's, HKS 272's, or JWT C3's. That's basically anyone that's shooting for over 450whp

[idahotuner]

i am stiking with my 264's for my gt3076, but i am aiming fora powerband 4-800 rpms so those cams work best in that area. and i am usigna twin scroll turbo.

[shift_SRDETuser]

I made 311 ft lbs of torque with some greddy easycams and idahos old gt2871r. It is a sick street setup. I can kick the crap out of 99.99999999999999999% of the cars on the road and still cruise with the a/c on when it gets HOT.

[240sxorty]

bit if a learner here. I already have an SR with 272 cams BC retainers and springs 3 angle vj, CP pistons, carillo H rods. I bought the block this way. My question is this.

Can I put my regular t25 manifold and all sensors, and stock ecu(no mods) and have it run well ( temporarily) until I got a standalone or some sort of tune? What sort of problems will I have? Has anyone done this?

Thanks.

[DrifterProdigy85]

I wouldnt do it. Stock Ecu isnt meant to run the big cams. Its a complete change in the timing map for what the setup needs.

[shift_SRDETuser]

Just to give you guys an idea about what these cams mean.... I went over 300whp at around 4300 rpm with some greddy easycams 256/264 10.5 duration stock valve train and idaho's GT2871r. I guess all these cams idle the same-- lumpy with surging and pulsing not bad but occasionally. When overlayed with a s13 sr the vtc s14 sr makes 70-100 hp more on the low end but they end up close to the same power levels....

[tokendog]

So I am taking my engine to the machine shop on Wednesday to have a rebuild done to it.

While its at the shop, I'd like to get anything I can upgraded in order to make the engine more reliable and stronger. However, I do not know enough about how these things work in order to not gimp myself in the process.

At the moment its a blacktop SR20DET with a t25. I have a boost controller, FMIC, and an Mishimoto radiator. Thats about it. I want to upgrade all that I can within the price range of 3k or a tad bit more.

A friend of mine was really recommending that I go with 264s, rods, pistons, springs, etc. so that I do not have to open the head back up whenever I upgrade turbos. The only catch is I do not know when I will upgrade turbos. I have to upgrade fuel (i think?). I am running a walbro hi-flow fuel pump at the moment but have stock injectors.

From what I've read on here, it would be best to go with the stock cams and the t25 or even upgrade to the t28/equivalent for more HP but still seeing the best benefit of my setup.

I also wanted to get a tune from Enthralpy. How much would I be gimping myself I just did my setup to run 264 cams with the T25 and if the best decision is to go with stock cams, what else can I get done to the engine while its at the shop to maximize its potential, power, and reliability?

Thanks in advance!

PS. I've never driven a 300hp car. My goal at the moment is 300HP. I do want to go higher but I do not know how high is high enough for me at the moment. I guess I'll decide once I hit 300hp.

PS. IDAHOTUNER!!! Whats up bro?
Modified by tokendog at 9:18 AM 11/15/2009