almost 270WHP NA - Honda Prelude Forum

2point6 · 04-08-2006, 08:03 PM

After all of the last dyno tuning, testing various headers on my car, I ended up having to replace a head gasket. Some of you who follow my posts might have already known about this issue. So here is an update... upon replacing the gasket I found a sleeve that had sunk about .002" causing the head gasket issue. We were struggling with time to get my Accord up and running for NOPI and decided to use my "back up" 89mm darton sleeved block that I had sitting on the shelf for the past 5 years. I transfered my crank, pistons, rods to the new block, and added the Vance and Hines head to the mix. I also added a larger set of Web cams to see what this would do on the dyno. So basically, I refreshed the engine with minor changes to compression since the new block is .010" taller than the old. I have roughly 11.8/1 compression instestead of 12/1. That being said, I still made more powerover all. To reflect on one of my previous posts, some people were curious what my engine would do with a "proffesionally" ported head with a larger set of cams. This set-up made more power 268.2 WHP and 195.8 WTQ. I made just slighly less TQ, but considering that ambient temeratures were 20 degrees warmer during this session, I am not dissapointed in any way.

Here is my current set-up simplified:

Vance and Hines headwork, Web Cams and valve train, TWM 50mm Throttle bodies, 89mm bore darton sleeved block, JE pistons 11.8/1 comp, Cometic Head gasket, 98mm crank, RMF Header, Neptune Engine management, Locash Racing Tuning.

Thanks to:

Joe Sawyer at Locash Racing for his patience with me while tuning my car over and over and over....
Randy Monroe for just puting up with me in general. You know what I mean.
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sharkcohen · 04-08-2006, 08:09 PM

OMG that is amazing and awesome.

Solid · 04-08-2006, 08:33 PM

very cool, i want an NA prelude with a similar setup, but i want magic number 300 lol

XdisengageX · 04-08-2006, 10:38 PM

WOW

270hp and a 12.7@108

. . . nice work!

Solid · 04-08-2006, 11:18 PM

I under stand if you don't want to answer this, but how much did that engine build plus tuning cost you total?

Artifex · 04-09-2006, 01:41 AM

Scott, you continue to set the bar for H22 owners. I applaud your attention to detail.

mista33 · 04-09-2006, 07:40 AM

very nice numbers out of an n/a setup congrats on that...

Artifex · 04-09-2006, 01:50 PM

Quote:

Originally Posted by 2point6

Here is my current set-up simplified:

Vance and Hines headwork, Web Cams and valve train, TWM 50mm Throttle bodies, 89mm bore darton sleeved block, JE pistons 11.8/1 comp, Cometic Head gasket, 98mm crank, RMF Header, Neptune Engine management, Locash Racing Tuning.

I just thought of something. Are you using cam gears? Have you thought about tuning your cam overlap?

2point6 · 04-09-2006, 02:24 PM

Quote:

Originally Posted by Artifex

I just thought of something. Are you using cam gears? Have you thought about tuning your cam overlap?

Yes, I am using cam gears... Skunk2 Pros to be specific. Sorry for not including them in my list.

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monkey-boy · 04-09-2006, 03:34 PM

Nice figures!

Although - isn't 270 at the wheels just a bit too much for a front driver?

Solid · 04-09-2006, 03:35 PM

^I've seen more, but that's what LSD is for

paulyg · 04-09-2006, 05:29 PM

WOW. Thats feaking awesome. Shark is right, you do set the bar for us H22 tuners. Way to go.

SNsLude · 04-09-2006, 06:04 PM

I believe artifex said that ^

... but yah, outstanding work man... ahh so envious.

TwizT · 04-09-2006, 07:58 PM

That is awesome.

madcatz · 04-09-2006, 08:14 PM

can I borrow the engine and tranny for a couple of days?

pwetty please!!!!

nice job man....hope to see future improvements and that magic 300 NA number reached

monkey-boy · 04-12-2006, 06:18 AM

Quote:

Originally Posted by Solid

^I've seen more, but that's what LSD is for

I've an LSD on mine, track suspension, forged wheels and semi-slicks and I know even with an extra 20-30bhp, it'd struggle badly from understeer in turns

My rwd E30 M3 on the other hand would love the extra power

MugenPoweredLude · 04-12-2006, 07:17 AM

congrats man

preludejtstyle · 04-12-2006, 09:13 AM

wow. very nice. how much you know about tuning? can you share some of your settings??

azjs · 04-20-2006, 08:29 PM

Bow down! Those headers are awesome btw, where are the radiator fans relocated to?

-az

KENLUDE97 · 04-22-2006, 07:59 AM

Quote:

Originally Posted by monkey-boy

I've an LSD on mine, track suspension, forged wheels and semi-slicks and I know even with an extra 20-30bhp, it'd struggle badly from understeer in turns

My rwd E30 M3 on the other hand would love the extra power

Do you have a rear swaybar? i just put a Progress in my 5h gen and man what a diff!!! I also have a LSD, and ground control springs.