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C20XE intake manifold fits SEiW


Mike-SEiW

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I just trial fitted my C20XE engine into my SEiW chassis. Some of you didn't think the intake manifold will fit, but it does!  :cool:

Lots of room on the side and at the back, and I'm sure there's enough space on top as well (I've got the latest "EFI-bonnet" with a bulge on top of the intake side).

Here's some pics:

bild%20019.jpg

bild%20017.jpg

On the last one, the engine will tilt over more when I've got the engine mount in a hole, so expect another 10mm of clearance if not more, making a total of 25mm which is plenty.

Will have to make some "modifications" to the engine mounts, but then, most of the Westfield supplied stuff seems to need some form of modification done to them so I'm getting used to it now ;)

Cheers!

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That's gonna make a hell of a noise as you rev it.

Not cos it's a loud engine or anything like that.....it'll be that metal intake smashing chunks out of your chassis as the engine rocks on those Rubbers beneath your engine mounts!!!

Buy a set of 2nd hand carbs and a DCOE manifold for £400-£500, save your chassis and gain 25 bhp.  PLEASE!!!!

What is that clearance to the chassis in the 2nd picture? 5mm, 10mm??

You need a 25mm dynamic envelope around the engine, it's a really bad plan

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I reckon you've got 8mm of clearance between the chassis rail and the plenum, even if you buy rock hard rubbers  :blush: you're gonna prang the chassis

It's not that I don't want to see you fit it in, I just think you'd be better off long term fitting throbbing bottles or as mentioned above a pair of DCOE's

Oh yeah, leaving that on WILL strangle the engine

Cheers

Dave

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On a serious note actually, it's not likely to rock 25mm? Not even my MX-5 with softie rubbers moves that much. That's not something I want, so if it does that I'll be moving to harder rubbers definitely. The space will increase to about 25mm as I lower the engine mount on the other side. I'll do this tonight so we can have another look, but I'm hopeful (as always).

Thing is, carbs are not really my thing and throttle bodies cost cash. This HAS to fit, or I'm making my own manifold, it's as simple as that. I'm keeping the stock injection!

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On a serious note actually,it's not likely to rock 25mm? Not even my MX-5 with softie rubbers moves that much.

Mike

Have you ever see the amount the engine in your MX5 moves when its running under load, i.e. on a rolling road?

When I had my car on a rolling road for the first time there was a lad with a mk4 escort rs turbo there the same day and his engine was moving up to 50mm when the road operator changed gear.

I hate to knock people's creativity but if you have less than 25mm clearance YOU WILL foul the chassis under load...

Sorry Mate.

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On a serious note actually,it's not likely to rock 25mm? Not even my MX-5 with softie rubbers moves that much.

Mike

Have you ever see the amount the engine in your MX5 moves when its running under load, i.e. on a rolling road?

When I had my car on a rolling road for the first time there was a lad with a mk4 escort rs turbo there the same day and his engine was moving up to 50mm when the road operator changed gear.

I hate to knock people's creativity but if you have less than 25mm clearance YOU WILL foul the chassis under load...

Sorry Mate.

Interesting. I had a after-market turbo in my mx-5, and there was very little clearance between it and the strut-tower bar that was above it. We are talking 5-10mm. It never touched. Oh well, I guess it's live and learn, we'll see how it goes. I'm not gonna scrap it just yet  ???

I want stiffer mounts too if it moves that much.

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If you intend to use that manifold then I would strongly recommend solid mounting the motor... it's the only way you'll ensure it won't touch.

Then solid mounting leads to other problems...

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Ahem..............

Standard EFI circa 130 bhp

Webers with ECU circa 180 bhp

Nuff said.................

Dont recommend tilting engine with shallow baffled sump, keep upright as much as poss.

Have you ever see the amount the engine in your MX5 moves when its running under load, i.e. on a rolling road?

Disagree, my VX used to move under engine load ie revving on and off a few mm but moved a lot under duress ie: road use/bumps etc

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The power figures I've been quoted sound like this:

Standard IM and ECU - 155bhp

Remove "SFI"-box and chip the ECU - ca 175bhp

This comes from several tuners and a friend of mine who uses an XE engine in his race car. I have no reason to doubt him.

Obviously if it does contact I will have to do something about it. I hope you guys won't get p******** off if I want to verify what you think before going to a more expensive or timeconsuming solution?

The engine will definitely sit "level" in terms of right to left lean. It's just that in this pic, the engine mount on the other side had no hole to go into and is thus 30mm higher than on the other side, effectively "leaning over" to this side.

I take it no one here has tried using the stock manifold and thus has direct experience?

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I'm with you Mike - Injection is better than Carbs any day of the week.

Just 'cos it's not been done before doesn't mean that it's wrong or won't work.

And if you can't get it to fit you could try some GSXR 750 TB's

Best of luck

Neil  :cool:

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Thanks Neilb for the moral support. :)

I just thought of something - if it does hit the frame, that means I can always add a torque-strap or rod to lessen the movement, can't I? Seems like a simple and easy solution.  :t-up: ?

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