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> Build me a Strong 4!, Yes, you heard me!
post Jul 10 2003, 01:08 PM
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I am going to pull my engine this week after an embarassing weekend at sears point. Too little horsepower. Can't even keep up with the 944's. I hope to build up my 2.0L into something pretty strong, probably in the 140hp range. I will be keeping the stock FI if I can, but if I can sell the stock FI, maybe I go carbs? (IMG:style_emoticons/default/smilie_flagge24.gif)

Where should I start? What should I get? I do have a budget, so I want to keep the costs somewhat moderate. Help me out. Thanks!

Terrance

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URY914
post Jul 10 2003, 01:21 PM
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go to the the typeIV section of the shoptalkforums.com site or go to Jake's aircooledtechnology.com site for a your questions.

Paul
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thesey914
post Jul 10 2003, 01:28 PM
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Paul, you have a big four, yes? what's the spec on your motor and horse power? All I can remember is you have hugely tall velocity stacks. Oh and your car is Tres light weight
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Brad Roberts
post Jul 10 2003, 01:35 PM
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Paul,

why would you send him away from here ?? So far all I have seen on STF is a bunch of whining VW guy's and Jake followers.

Terrance what where your lap times ?? . I'll tell you whether you need more power or not.

140 is doable with carbs and a header. It will take a non streetable cam and some good head work... plus a bump in compression (11:1 or so) Get ready for 5.00$ a gallon gas if you expect 140 from a 2.0 engine.

B
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Qarl
post Jul 10 2003, 01:45 PM
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Are you trying to keep in the 2.0L displacement, or can you go to 2056 ccs and larger?

A lot depends on the organization you race in, the class you want to limit yourself to... blah blah. You know the story.

If you want to stick with the stock FI, then you are going to probably stay with your d-jet cam which has a good power band but is limited in power output. You can safely go to 2056 with D-jet and your cam, but you're not going to get 140 HP.

A lot of your power is going to come from good head work, carbs, cam change, and exhaust.

Questions...

1. What's your budget
2. What's your displacement restrictions
3. Street, track, or both
4. What do you want to keep on your engine and what are you willing to change/let go.

This may help get you some better feedback.
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Qarl
post Jul 10 2003, 01:47 PM
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Paul has a 1.7 with a big bore (1.9?), racing exhaust and megaphones, carbs, and I think an MSD or some sort of electric ignition.

Sounds bitchin with the stinger removed from the megaphones!

Oh yeah... his car weighs 1500 lbs... so he don't need no stinking big four! Something about power to weight ratio comes to mind.

Pictures are on my website http://www.my914-6.com and click the pictures and the Orlando get together.

His car is grey and red with no windshield!
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Brad Roberts
post Jul 10 2003, 01:48 PM
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He just built this current engine...


B
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Andyrew
post Jul 10 2003, 01:53 PM
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Maybe your thinking of building a strong motor from a 2.0, like a stroker 2.3 (2258cc) with 96mm pisons and 78mm rods? Then it would be really easy to make a smooth reliable and streetable engine..
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Bruce Allert
post Jul 10 2003, 02:04 PM
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I finally found a 2.0. I'd like to bump it up a little but still keep the FI. What can be done for a nominal price? I'm not looking to go more than $500 in mods... less if possible (IMG:style_emoticons/default/cool.gif)
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Qarl
post Jul 10 2003, 02:06 PM
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Bruce... from what I read either European P&Cs (higher compression) or a big bore P&C kit. Then you'll have to tweak the D-jet.

But enough people here have BTDT to tell you what you need to tweak (not me).
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thesey914
post Jul 10 2003, 02:21 PM
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Terry, I reckon realistically you will have to ditch the stock FI. Carbs or a fully programmable FI. is the way to go.
If you want to go reasonably inexpensive then 96 B+P, Big carbs and a decent cam will give you a nice power boost and 2056CC's with minimal machining.
J. Raby has loads of engine combo's and there's no reason why you cant copy some of the specs and have reasonable results....
I do think that Raby does hype his products up a little, but he seems to have satisfied customers....Jake followers ? Do I detect a little friction between Brad and Jake? (IMG:style_emoticons/default/cool.gif)
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post Jul 10 2003, 03:06 PM
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haha. Brad, I think I did a 2:16 my fastest. yes, I know for a fact that I can find atleast 3 more seconds on the track. Plus it was my first time at sears too. I had major issues entering up to turn 2. Car is literally slowing down going up there. on the warm up lap, I had to drive pretty hard to keep up with the cars! I hope to improve my driving there, and make enough power to get under 2 minutes.

I don't care about streetability. I'm not sure what my budget would be, but I will be doing all the work myself if that matters.

I hope to:

have more compression
Maybe stick with FI, but if I can dump the FI and sell it, and get carbs, I would go carbs. They are very foreign and I know absolutely nothing about them
do some headwork, (where to bring it to?)
Cam
P/C's
valvetrain upgrades (valve springs etc.)
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nomore4
post Jul 10 2003, 03:28 PM
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I think Raby uses Headflowmasters for his head work.

www.audiracvws.com
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Bleyseng
post Jul 10 2003, 03:37 PM
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You can get it close to 120hp with the Djet.
96mm pistons-8.5 to 1 compression
Webcam FI cam
Heads- ported
Headers
Dyno shop time to tune the FI
Geoff
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brant
post Jul 10 2003, 03:53 PM
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Terrance,

depending upon your ultimate goal...

It is cheaper to improve lap times by buying seat time, lessons, and tires than it is to build a 140hp/4

I ran 140hp/4's for about 10 years and learned that my quicker lap times came from skill and style more than a fresh $6,000 motor.

just a thought.
brant
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post Jul 10 2003, 04:04 PM
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Oh how I've heard that quote so many times. (IMG:style_emoticons/default/tongue.gif)

I need more seat time yes, but the guys I run with are leaving me in the dust regardless of how much speed I can carry. through the esse at sears, no lifting or anything, so I can keep up with the guys in my class, then on to the straight, there is no way to keep up or catch up. I think the way the car is setup now, 2:08's are probably as fast as I can, or someone can get it to go at sears. Guys in my class are a tad under 2:00.
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brant
post Jul 10 2003, 04:14 PM
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I've never been to sears...
but I've raced against plenty of 944's
they are faster on the straights.... you have to beat them elsewhere.

How about the corner before the straight and before the esses? Can you run that corner in such a way as to be on the gas 1 car length sooner?

I loved the horsepower increase.
I'm not trying to persuade you against it...

Is there any other 914's running? What times?
brant
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post Jul 10 2003, 04:53 PM
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I know i can definately make up more time at the "hairpin" before the esses and at turn 11(?) before the straights.

The other 914's out there are either super duper wide bodied, 3.0L+ on real race slicks. haha. I want to be the guy who has the 4 banger keeping up, and battling it out with some of the "slower" 911's and 944's. I think another 20+ hp would be pretty good for this car, where i can knock off good times and maybe atleast keep up with the other guys. I got lapped twice, almost by the entire field. hahaha. how embarassing.
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Mark Henry
post Jul 10 2003, 05:26 PM
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Here's a couple of nice T4 engines:

http://www.qtm.net/~persoj/mymotor.htm

http://home.att.net/~airdoc/page7t4eng.html

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Bleyseng
post Jul 10 2003, 05:32 PM
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How is your tranny set up?? maybe thats the ticket also.
Geoff
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