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Old 23rd December 2008, 22:04   #1 (permalink)
 
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FN2 Race Manifold

Today we have finished testing of a new design race manifold for the FN2.
Results are very impressive with big gains shown in both power and torque when combined with a good intake, exhaust and Hondata ECU with lowered vtec point and increased limiter.

The graph below shows optimum setup on our test car with a GruppeM intake, our race manifold and HKS exhaust system coupled with the Hondata ECU, plotted against the same car totally stock:

190WHP can't be bad.





Manifolds are in-stock and available at 625+VAT

Drop us an email at [email protected] or give us a call direct for more information.
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Old 12th January 2009, 01:20   #2 (permalink)
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this manifold should better than the cpl one then...and when the toda is gonna be arrived? i have been waiting for aaaages..........
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Old 28th February 2009, 14:25   #3 (permalink)
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TDI, one question please if you wouldn't mind answering, the Dyno run shows speed 129MPH! This isn't possible in 4th gear (which the run should be done in) so how have you got this? Does this mean the figure is a mistake?
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Old 28th February 2009, 15:37   #4 (permalink)
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TDI, one question please if you wouldn't mind answering, the Dyno run shows speed 129MPH! This isn't possible in 4th gear (which the run should be done in) so how have you got this? Does this mean the figure is a mistake?
Data is correct, run was done in 5th as is all runs we do on Honda OEM 6sp box's.

You can effectively do a dyno run in any gear you choose but its all down to getting a nice smooth curve and not having the run so fast the data collected by the software is limited. You also try and get the gear selected for the run as close to 1:1 which in the case of a 6 speed OEM Honda box happens to be 5th.

We do all our runs, and tuning in this gear unless the car is running a 5 or 4 speed box where dependant upon the type of setup maybe in the gear lower than top or even in top if its a big powered setup.

Airflow is another consideration. Map a car in too lower gear and you get correct AF. Then on the open road, in higher gears because there is better airflow you may well see the car running lean which isn't what you want.

Hope this helps explain why we do what we do.
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Old 28th February 2009, 16:03   #5 (permalink)
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TDI, Whats overall cost including fitting for this manifold? Is it road legal?

Last edited by dez72; 28th February 2009 at 16:06.
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Old 28th February 2009, 16:45   #6 (permalink)
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TDI, Whats overall cost including fitting for this manifold? Is it road legal?
2 hours to fit so will be about 100 at current rates.
You remove the CAT with this manifold, it's not illegal to not have a cat but it won't pass emmission tests come MOT time or at a roadside test but you get time to swap it back if needed.

Never had a customer with issues in all the years we have been trading and those that have their cars come MOT time either arrange the standard manifold to be re-fitted prior to MOT or have spoken to the MOT garage and left the manifold/cat in the boot for them to refit, test then swap back for a few .
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Old 28th February 2009, 17:16   #7 (permalink)
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Just so i know what I'm talking about - from Wiki "The primary function of the intake manifold is to evenly distribute the combustion mixture (or just air in a direct injection engine) to each intake port in the cylinder heads"

So basically this manifold lets more air into the engine or what?
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Old 28th February 2009, 17:22   #8 (permalink)
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This is the exhaust manifold, you have read intake manifold info!

The exhaust manifold is fairly restrictive on the FN2 and limits the speed and volume in which new air / fuel can be drawn in. So by "loosening" it up by fitting this new manifold enables far less restrictive flow, and bigger bang, quicker
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Old 28th February 2009, 18:18   #9 (permalink)
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Quote:
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2 hours to fit so will be about 100 at current rates.
You remove the CAT with this manifold, it's not illegal to not have a cat but it won't pass emmission tests come MOT time or at a roadside test but you get time to swap it back if needed.

Never had a customer with issues in all the years we have been trading and those that have their cars come MOT time either arrange the standard manifold to be re-fitted prior to MOT or have spoken to the MOT garage and left the manifold/cat in the boot for them to refit, test then swap back for a few .
Ok thanks. Can you do this on a saturday morning?
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Old 28th February 2009, 19:42   #10 (permalink)
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any one with a video of it on the car whilst running?
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Old 28th February 2009, 23:02   #11 (permalink)
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any one with a video of it on the car whilst running?
I haven't got one but if you could get over to TDi North in Warrington with a camera you can take all the pictures you want.

They do work Saturdays as well btw for other question.
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Old 1st March 2009, 10:18   #12 (permalink)
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I would like manifold but its all the hassle of the emissions at the mot time
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Old 1st March 2009, 10:40   #13 (permalink)
 
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Was this manifold designed with the hondata in mind like the CPL one.I ask this question because i don't have the ecu.The hondata is not compatible with South African FN2's.I was thinking of using the Dastec Uni Q instead.Here's the gains of a localy tuned FN2 with piggy back only.HondaRacing.za.org :: View topic - FN2 STG1 by JDM TUNING
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Old 1st March 2009, 10:53   #14 (permalink)
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I would like manifold but its all the hassle of the emissions at the mot time
Yeah that is slightly annoying but imagine the extra power!
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Old 1st March 2009, 16:00   #15 (permalink)
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It's 3 years from new before you need its first MOT and will you still have it then?
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Old 1st March 2009, 16:27   #16 (permalink)
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Quote:
Originally Posted by Gouws View Post
Was this manifold designed with the hondata in mind like the CPL one.I ask this question because i don't have the ecu.The hondata is not compatible with South African FN2's.I was thinking of using the Dastec Uni Q instead.Here's the gains of a localy tuned FN2 with piggy back only.HondaRacing.za.org :: View topic - FN2 STG1 by JDM TUNING
It was designed to make as much power for as long as possible on a K20 engine. Was developed for EP3/DC5 but been modified to fit correctly on the FN2 which has less space.

Designed to an ECU is the wrong way around. A mappable ECU allows you to tune to your mods not the other way around.

Q chip rocks and something we can get here in the UK but no-one has gone for yet but Hondata also shouldn't be long either.
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Old 2nd March 2009, 14:53   #17 (permalink)
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Sorry 3 hours to fit not 2 as quoted.
Was thinking of EP3/DC5 which is 2.

There is a lot more work involved with the FN/FD2 with removing heatsheilds and covers.

Paul
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Old 21st March 2009, 14:57   #18 (permalink)
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Why has TPW's car lost power? He ran a 230BHP here with AEM CAI and No manifold or Gruppe M
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Old 21st March 2009, 15:14   #19 (permalink)
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Why has TPW's car lost power? He ran a 230BHP here with AEM CAI and No manifold or Gruppe M
Different cars.
That one was very strong out the box....then was stolen a few weeks later.
New car was down on power from new compared to that one.
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Old 21st March 2009, 15:31   #20 (permalink)
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Oh right, I'm confused then mate because on the other one they show the same standard car on the dyno with 208.4BHP and the same torque even after saying the last one was 212BHP then the graph shows 208
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Modifica collettori OBX da DC5 a FN2 - Pagina 7 This thread Refback 15th October 2010 20:46
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