Log mani or ramhorn?

[krukedking]

Whats the pros and cons??

[RenownPerformance]

It really depends on your set up and turbo goals along with power.

[krukedking]

Well i am not turbo smart at all!!! Ill admitt im a retard when it comes to turbo. But what i know is the turbo im getting is a garret a.r.50 and the mani is log. Im looking for 3-350 for power range....does that help? 440 injectors and ill do 3" exhaust. I have sk2 intake mani, jg edelbrock 65mm thb, b18c1 with a b16 trans, i plan on type r springs and retainerr and type r cams.... Am i headed in the right direction?

[AlexD]

the log manifold will be fine for 300-350hp. They are simple in design with short runners so they have a tendency to spool turbos quicker than other manifolds.

However, because the runners are shorter, there is more backpressure than with an equal length manifold and that is not always good, but I would imagine as youre trying to reach numbers north of your goal that backpressure problems like that become more prevalent.

Ramhorns are "equal length" manifolds. Youll gain power, and it will most likely shift your powerband more towards the top as well as help you make more power towards redline. Whether or not this difference in spool time and power is something youll notice is beyond me.

[krukedking]

i could always upgrade but as a "for now" as in for the summer id just like to be around 300hp or so. and ill prolly almost daily the car during the warm months, i wanna have fun and stay safe lol, if i blow the gsr ill throw an ls in it lol!

[da_dude]

Those 440cc will hold you back.

[Shane@DBPerformance]

The shorter the runners and smaller the tubing the fast the spoolup. Log and short runner cast manifolds usually spool turbos the quickest but give up some power. A good ramhorn or good design shorty tubular manifold can add a good 30-50whp even on a modest VTEC turbo setup. The long runner top mount setups are usually just a big lag adder for most guys or for looks, you don't need a manifold like that until you are making some serious HP. A ramhorn with normal size runners is usually a very good setup for most guys.

As da_dude said, those 440s won't get you to your goal. They are only good for 260-295whp depending on your base fuel pressure and redline.

[krukedking]

ok so what do you suggest for injectors? and honestly i want my car to basically be street driven everyday(summer). im kinda hard on my cars and love the feeling of vtec! i dont want a top mount at all. i want a reliable 3-350 for power.

[AlexD]

at least 650cc injectors. What type of fuel are you going to run, i mightve missed it.

RC/Precision, cant go wrong there. If you got extra cash, go FIC/Bosch

[krukedking]

prolly 91 i dont wanna do e85 i dont think...

[krukedking]

prolly 91 i dont wanna do e85 i dont think...its basically a budget build till summer is over... im also debating rhd front clip :D

[da_dude]

If you're on the budget look into some evo 560cc injectors. You'll need to run a resistor box with it though.

[AlexD]

prolly 91 i dont wanna do e85 i dont think...its basically a budget build till summer is over... im also debating rhd front clip :D

Don't you guys have 93?

[krukedking]

I dont think in town we do?! But thats what i meant lol, higher octane.

[carbide]

Don't you FWD guys not mind lag? If the power comes on RIGHT away, don't you just spin spin spin?

[inspector01]

Don't you FWD guys not mind lag? If the power comes on RIGHT away, don't you just spin spin spin?

I have never understood people who say this.....Lag in a FWD does not help with traction in any car I have ever been in....

[carbide]

I have never understood people who say this.....Lag in a FWD does not help with traction in any car I have ever been in....

I honestly wouldn't know. I've never had a FWD car with over 100 BHP

[inspector01]

I honestly wouldn't know. I've never had a FWD car with over 100 BHP

Well think about this, how does the powerband hit on a small turbo/mani with minimal lag?? How does the powerband come on with a big turbo and topmount?? Which one do you think would be easier to control?? (Ill give you a hint, the one that doesn't gain 100 ft/lbs tq in less than 1000 rpms)

I hear people say that all the time, but I have yet to see a setup that it works on. Lag just makes them hit hard when they do, so they spin worse, and it is harder to pedal it.

[carbide]

Well think about this, how does the powerband hit on a small turbo/mani with minimal lag?? How does the powerband come on with a big turbo and topmount?? Which one do you think would be easier to control?? (Ill give you a hint, the one that doesn't gain 100 ft/lbs tq in less than 1000 rpms)

I hear people say that all the time, but I have yet to see a setup that it works on. Lag just makes them hit hard when they do, so they spin worse, and it is harder to pedal it.

Yeah, you're right.

[AlexD]

The way I see it is, for these huge turbo guys with top mounts and such, the power comes on like a light switch. Id rather the power come on steadily than that. However its all manageable depending on the type of tires/suspension/transmission/bbg etc. that you have.

[krukedking]

How well is my b16 trans gonna be with boost?? No lsd...till next year...

[EJ_6]

I dont know if this would help you but then yeah good luck with your decision.

http://www.youtube.com/watch?v=TkOFB2R2sqc

[krukedking]

Is that 50 hp difference?!?

[EJ_6]

Is that 50 hp difference?!?

Hell yeah.

[krukedking]

Wow...

[EJ_6]

Wow...

Soo....which one are you going to go with? lol.

[krukedking]

Well the kit im gettin has the log...for this summer i should be ok. Ill prolly change it mid summer ha ha

[EJ_6]

yeah, when i first saw it i was like oh wtf...had to replay.

[slappynuts]

If the log will get you to the power level your looking for then its the best option. Then you can take your money and spend it elsewhere.

[rsmotors]

I'd at least get a manifold that doesn't ram the exhaust gases directly in front of each other. A simple change in the way the runners are made will go a long way. It doesn't have to be equal length, just have each runner run direct to the flange.

[SmoreKusBore]

i dont know if i missed this or not. but will you be running stock internalls? and IMO for that horsepower goal and if you are going to run stock internals i would go with a log manifold with a good wastegate placement that will get equal exhaust flow from all runners. inlinepro makes a very good log manifold in either thick stainless steel or cast iron they just came back out with again.

http://www.inlinepro.com/s1/images/PRODUCT/large/99.jpg

if you decide to go with a ramhorn manifold please for the love of god stay away from ebay. ebay ramhorns are very week due to the the thickness it lacks also they dont like to withstand the heat as much. i had a buddy that went through 2 or 3 of these in just one summer and they always either cracked or physically melted.

the price of a ramhorn can get pretty pricey. but in the end it will be money saved by not buying crappy ones over and over again. thats my 2 cents

[krukedking]

here is the turbo...

http://i668.photobucket.com/albums/vv50/krukedking/IMG00689.jpg

[krukedking]

log mani
http://i668.photobucket.com/albums/vv50/krukedking/IMG00688.jpg

[AlexD]

more pictures of the manifold

[miguel30660]

nice

[krukedking]

http://i668.photobucket.com/albums/vv50/krukedking/IMG00686.jpg

[krukedking]

thats all i have alex

[JDMB1992EG]

trial and error thats the only way to really figure out what works on your car. I say go e85 it'll help with the timing and probably produce more power

[eastbethelboy]

it will help with detonation!


trial and error thats the only way to really figure out what works on your car. I say go e85 it'll help with the timing and probably produce more power

[eastbethelboy]

that ebay turbo wont last you also. get at least a Garrett. i do have a few i could sell you one but ill think about it!

[krukedking]

Looking to get through summer and upgrade....

[EJ_6]

i think ebay is fine for temp :p

[RyanJ1986]

make sure the housings not held togethor with glue like the old xs powers....

[hanson12b]

atleast you got a tial wastegate

[j3wman]

krukedking im about as turbo smart as you but i had a friend who had an ebay turbo on his tiburon (made 260hp at the wheel not bad). it lasted like a week then he checked it and had visible shaft play. he swapped it for an old volvo turbo and it ran with like 240 hp reliably until he sold it last summer.

what prep work did you do to the block for the set up you have?