Best intake for my aplication .. sheet metal options?

[randomnine7]

well im looking to replace the intake of my lsx based rx7 . its only a hci 347 but i will be spinning it around 7kish and will be running around 250-300 worth of nitrous . and dnt wanna blow up the current plastic 90/90 i have ..

i have bigger cubes planed for the future so this might be over kill as of right now . motor is a forged 347 with ms4 cam and tsp prc 2.4 5.3l heads . intake is a fast 90/90 im going to use it for my fbody project and am looking for sumthing that wont blow apart with alot of nitrous on the rx7 .

i am willing to give up some power and torque down low for more up top .

options im looking at ..

a beck sheetmetal manifold with 115tb
victor jr or sr with sheet metal elbow and 90tb .
edelbrock efi intake manifold with 90tb
ive also seen fiber tuned intake but havent heard too much on these .
maybe another fabbed intake .

how much more if any power will these make over my current fast 90?

im sure this is over kill for my engine at the moment but i do have bigger plans later or soon. so i will be reusing the intake ..i knw these options are expensive but worth it for every last hp im looking for .

so please some good advise and info and maybe other non plastic options !! thanks !

[randomnine7]

also just found the harrop ITB for 3500.... a lil expensive but is the power worth it ?
racespec.com.au/product_info.php?products_id=806

[LS6427]

Originally Posted by randomnine7

also just found the harrop ITB for 3500.... a lil expensive but is the power worth it ?
racespec.com.au/product_info.php?products_id=806

The Harrop ITB will completely crush the power any sheet metal intake can produce.

This guy got 63 RWHP over his Wilson sheet metal on his 454ci LSX.
http://www.streetfire.net/video/GTM-...ETC_184408.htm

ITB intakes are where the power lies.

There's also http://www.extrudabody.biz/servlet/t...sh-45mm/Detail
You'll have to call them for LSx applications, but they do make them for LSx.

Kinsler ITB's. But they're $10,000 for an LSx set-up.

.

[randomnine7]

wow ... now that 3500$ price tag dosent seem too bad as i do plan on building a 454 turbo or nitrous in the near future ..

so how hard would the harrop be to direct port ?

[LS6427]

Originally Posted by randomnine7

wow ... now that 3500$ price tag dosent seem too bad as i do plan on building a 454 turbo or nitrous in the near future ..

Can't use the Harrop for forced indution. No need anyway, just use a cheap sheet metal like a Hogan intake.

so how hard would the harrop be to direct port ?

Very easy, its been done many many times on the Harrops in Aussy.

Where did you get the price of $3,500 US dollars?

[randomnine7]

this site

racespec.com.au/product_info.php?products_id=806

with manual trottle cable .. electric is like 600$ more .

ha ok no boost just juice ! sounds good to me .. damn .. looks like i might drop some coin on this intake then .. how much can i expect on my small cube set up ?

what about other intakes ?? anyone else have any helpfull info ?

i might rather buy a 9" for my f body than a intake for my rx7 ...hmmm desicions ..

[LS6427]

Originally Posted by randomnine7

this site

racespec.com.au/product_info.php?products_id=806

with manual trottle cable .. electric is like 600$ more .

ha ok no boost just juice ! sounds good to me .. damn .. looks like i might drop some coin on this intake then .. how much can i expect on my small cube set up ?

what about other intakes ?? anyone else have any helpfull info ?

i might rather buy a 9" for my f body than a intake for my rx7 ...hmmm desicions ..

The price I got in January from "Harrop USA" was $2,073 shipped.

[randomnine7]

really ? wahts the website i will put in my order tonight .

[Johnny Johnny]

That seems rather low, considering previous prices mentioned on this site. Did that include the TB's, or was it just the manifold?