My 420A Race Car!!!!!

[clipise]

Posting the pics would be good.


I love this thread. Great job on the build.

 

[Slippi84]

Ok it's the ISC(Idle SPeed Controller???)

 

[VelocitàPaola]

The only 2 sensors on the TB are IAC and TPS...

Shadow, you're right. On the 420A there's only the IAC (idle air controller) and TPS (throttle position sensor). The IAC is a stepper-type actuator valve that controls air bypassing the throttle plate at idle. The TPS is a linear output sensor that tells the ECU at what percentage of open the throttle plate is currently.

Slippi, what you've circled is the IAC.

4G63s don't have an IAC per se. They have an ISC (idle speed controller) which does practically the same thing.

 

[Slippi84]

Shadow, you're right. On the 420A there's only the IAC (idle air controller) and TPS (throttle position sensor). The IAC is a stepper-type actuator valve that controls air bypassing the throttle plate at idle. The TPS is a linear output sensor that tells the ECU at what percentage of open the throttle plate is currently.

Slippi, what you've circled is the IAC.

4G63s don't have an IAC per se. They have an ISC (idle speed controller) which does practically the same thing.

Ok then to Dsm Zero what is the plan for the IAC??

 

[Slippi84]

he really doesnt need one if its just a 1/4 mile car........ but u can just drill a little hole in the throttle plate if its absolutly necessary. actually witht he stock throttle body (assuming he was using one) u dont even need IAC........ theres engough air that gets passed the throttle plate in order for it to idle.

hmm good to know. I'm doing a q45 and venom setup similar to his acufab and venom and was woried about idle control as it only has two screws. Now we just need some pictures of all this so we can drule some more

 

[MACECA DSM]

Very nice, I plan on staging my 420a but at 204k + miles i may need to think rebiuld FIRST! But madd props to you and everything that you may accomplish on this biuld

 

[Slippi84]

Very nice, I plan on staging my 420a but at 204k + miles i may need to think rebiuld FIRST! But madd props to you and everything that you may accomplish on this biuld

Welcome to tuners. Guys are anal about how you word stuff around here just to give you a heads up so not trying bust your balls just if someone comes on and says why the caps and bold or the slang don't take it to heart

 

[DSM-ZERO]

Im not going to run one at all with the Electromotive i will be able to get the fuel low enough to idle properley.

 

[DSM-ZERO]

Here are the pics i took when i went to go see the car
All of these pics are before the engine bay and interior were re-painted

since then the bay and interior have been painted but i have yet to go back and take pics of them

 

[DSM-ZERO]

here is were the fuel pump is mounted and in the second pic you can see the slump coming off of the fuel tank
also my 4" exhaust and my burns muffler
and another inlet pic

 

[Blitzeclips]

Looks awesome man. Any idea when you will be tuning it? Or when to expect some numbers or performance output?

A video would kick ass.

 

[DSM-ZERO]

I hope some time this month im STILL waiting on axles and suspension

 

[ilikespeeding]

are you going to be running the factory timing belt? I thought you guys would have gone with a fuel cell.

 

[DSM-ZERO]

are you going to be running the factory timing belt? I thought you guys would have gone with a fuel cell.

I have a Mopar timing belt
and i cant run a fuel cell with my car which sucks or i would have done it

 

[turbosax2]

Nice job! Do you have any more pictures of the exhaust?

 

[4UH8ERS]

It's getting close , are you as excited as I am?

I love how clean and bare the engine bay looks.

 

[redline2k6]

I have been reading this with great intrest and I have to say it looks great I hope you meet your goals with this project and I look foward to following this thing threw

 

[knight007]

sexy as hell man, can't wait to see what it runs lets see some videos

 

[InfiniteGSX]

I say you tear it all down, and rebuild it just for our amusement!

Also, I say you speak with that shop about producing some 420A Parts, I know a few here have been throwing around the idea of things like a trully nice Intake Manifold, Some sort of non log style turbo manifold and other lovely parts!

What are all the regulations of what/why your building it the way you are? I'm kinda getting the hint that the car has to be Street Legal in order to be accepted?

 

[ilikespeeding]

Im pretty intrested in how they are going about doing all of this. You wouldn't happen to know how they're controlling fuel pressure? Most are vacuum powered so maybe you guys are using a vacuum pump?

 

[eclipseitall]

Just went through ALL 15 pages and all I can say is WOW! Some people just get to do all the cool things in life, glad you're share'n with us.

 

[spooln4fun]

cant even describe with words! just sweeeeeeeet

 

[bmoha2]

I may have missed it but why did they have to fab a valve cover? Cams too big to fit under the stock one? Or was it weight related?

 

[DSM-ZERO]

I may have missed it but why did they have to fab a valve cover? Cams too big to fit under the stock one? Or was it weight related?

First off
Thank You everyone for commenting on my car. THANK YOU

I had the valve cover made because the stock one is ugly......
The weight reducation is a plus.
and i know that i wont have any problems fitting any bigger cams under it either.....


We kind of ran into a problem with the crank and under drive pulley ......there is no way to keep the UDP from slipping on the crank under high loads.....
and, if the UDP slips it will through off my crank posisition sensor...since it bolts to the UDP.
Were trying to figure out what to do and how to make sure the UDP dose not slip.

WHAT DO YOU GUYS THINK....has anyone ever thought of this before?

 

[VelocitàPaola]

Most people avoid all that external crank trigger nonsense by using MSnS-E. Nevertheless, you need to index the UDP or attach the trigger wheel to something that is indexed. I don't know how your shop missed that detail. The best bet would to either key the end of the crankshaft for the trigger wheel, or to attach the trigger wheel to the crank sprocket.