Gemini Project: Mid engine RWD H22 Turbo Del Sol

[MidShipCivic]

Originally Posted by Wayne_Curr Not sure if this has been asked or not, it may not make sense (i am by no means an expert on dual engine cars) but what kind of challenge are you going to face getting each motor to match power. For example, it seems to me (with my own logic that may be flawed) that if the front engine is producing a little less power than the rear engine it would take power away from the rear engine because the rear engine would have to push the front one to keep up...did that make sense? my appologies if it didn't... It's not pushing anything there independant.

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[WhiteSol]

Originally Posted by Wayne_Curr

Not sure if this has been asked or not, it may not make sense (i am by no means an expert on dual engine cars) but what kind of challenge are you going to face getting each motor to match power. For example, it seems to me (with my own logic that may be flawed) that if the front engine is producing a little less power than the rear engine it would take power away from the rear engine because the rear engine would have to push the front one to keep up...did that make sense? my appologies if it didn't...

No problem, this is a common misconception. The full explanation is listed under the page 1 index as "Page 16) Dual Engine Math - Warning those with ADD might stop reading here (I am also not liable for any brain trauma that may result)"

Simple explanation, as Midship said. They produce their own power, all they see is load (accelleration of mass against resistance) and since they produce power in the same vector the load is distributed between the two engines based on the amount of power each engine produces. Simply put they make things easier for eachother.

[skunked]

Kick some ass.

I want to see this monster!!!

[WhiteSol]

Originally Posted by skunked

Kick some ass.

I want to see this monster!!!

Come on up to Canada then! Show the peeps up here what an NA H22 Teg can do! Races are every friday starting today, I've gotta get this thing done..

[skunked]

Originally Posted by WhiteSol

Come on up to Canada then! Show the peeps up here what an NA H22 Teg can do! Races are every friday starting today, I've gotta get this thing done..

thats not far enough of a drive. I'm thinking moscow

[WhiteSol]

Originally Posted by skunked

thats not far enough of a drive. I'm thinking moscow

Yeah the only difference is we are still communists...

[crazy sohc vtec guy]

man i wish i could do this

[ImprtTuner88]

awesome project...............any updates as of late?

[Mr_ET]

i was there on friday you missed an awesome night man finish this thing so you can show us all how its done.

going to racecity tomorrow?

[WhiteSol]

Originally Posted by ImprtTuner88

awesome project...............any updates as of late?

Thanks! Six more days until my welder comes in, and then this project gets back in high gear! I have new parts coming in today, 5-lug front hubs going on sunday with ITR brakes now on all 4 corners, soon to be sitting on some brand new tires

Originally Posted by Mr_ET

i was there on friday you missed an awesome night man finish this thing so you can show us all how its done.

going to racecity tomorrow?

I'd love to, as soon as my rollcage is completed I will be there. You're going to see so much of this car at race city this year, you'll get sick of it

[unusual71]

are you worried that when launching the car, the front wheels will break free, causing the motor to rev up really quick? or do you feel that this wont be a problem?

[MidShipCivic]

Originally Posted by unusual71

are you worried that when launching the car, the front wheels will break free, causing the motor to rev up really quick? or do you feel that this wont be a problem?

open your head up, there not only wheels moving the car.

[WhiteSol]

Originally Posted by unusual71

are you worried that when launching the car, the front wheels will break free, causing the motor to rev up really quick? or do you feel that this wont be a problem?

I don't think it will be a problem, I'll use a launch control + rev limitter on the front to control wheelspin it at launch. Plus with 11k springs at the rear, and 400lbs of engine in the front, it's going to have a tough time breaking free. In the event none of that helps, slicks fix all.

[RaceCity_USA]

Originally Posted by MidShipCivic

open your head up, there not only wheels moving the car.

open your head up. Unusual71's hypothesis is correct.

Originally Posted by WhiteSol

I don't think it will be a problem, I'll use a launch control + rev limitter on the front to control wheelspin it at launch. Plus with 11k springs at the rear, and 400lbs of engine in the front, it's going to have a tough time breaking free. In the event none of that helps, slicks fix all.

Hey Scott, the spring rates will have no affect on the amount of dynamic weight transfer. Can't wait to see this thing your building!

Cheers,
Dave

[skunked]

just run some BFG DR's..... it's gonna give you wiplash.

This will be the fisrt honda to spank a STI out of the hole

[EsQueue]

Originally Posted by MidShipCivic

open your head up, there not only wheels moving the car.

He meant will the front wheels loose traction not break apart from it's lugs, rolling down the street killing 2 cats before hitting the sidewalk and launching 125 feet in the air, hitting a power line and causing a four block power outage which still doesn't stop the wheel on it's path of destruction.

[unusual71]

THANK you for clarifying Esqueue, what would i do without ya?

thanks race city glad someone understands my uncomprehensible foruming

[MidShipCivic]

Originally Posted by EsQueue

He meant will the front wheels loose traction not break apart from it's lugs, rolling down the street killing 2 cats before hitting the sidewalk and launching 125 feet in the air, hitting a power line and causing a four block power outage which still doesn't stop the wheel on it's path of destruction.

First off I can read what he said.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote"> open your head up. Unusual71's hypothesis is correct.</TD></TR></TABLE>

It will have push and pull just like an awd car carry that idea over to this car.

It's simple.

The result =

#1
http://videos.streetfire.net/s...0.htm

#2 http://videos.streetfire.net/s...7.htm

[unusual71]

wow that burnout was nucking futs. i bet he didn't have much tread left after that one.

[kb58]

I swear... people need to take Camera Work 101...

[WhiteSol]

Originally Posted by RaceCity_USA

Hey Scott, the spring rates will have no affect on the amount of dynamic weight transfer. Can't wait to see this thing your building!

Cheers,
Dave

Yeah I meant more so that the increased spring rate would help compensate for any added compression to the rear from the added weight transfer. Due to increased rigidity with a rollcage I speculated this would help keep the nose to the ground and the car on the track. I honestly don't know enough about suspension to try and control dynamic weight transfer, I still have a lot to learn

[EsQueue]

I'm starting to feel like a junkie without the junk

I dying for an FIX (update)

[kb58]

Originally Posted by WhiteSol

Yeah I meant more so that the increased spring rate would help compensate for any added compression to the rear from the added weight transfer. Due to increased rigidity with a rollcage I speculated this would help keep the nose to the ground and the car on the track. I honestly don't know enough about suspension to try and control dynamic weight transfer, I still have a lot to learn

Don't worry about it - no one can control weight transfer. Yeah springs, shocks, and bars can be added but the weight transfer always happens.

[WhiteSol]

Originally Posted by EsQueue

I'm starting to feel like a junkie without the junk

I dying for an FIX (update)

Thanks for your continued support and interest

I'll work on an update for this weekend.. I haven't been able to do a whole lot because of all the other work I have taken on, but I'm working away at it too. The car now desperately needs a paint job.. the 3 color combination isn't working for me.

The good news for the project is that my new Miller TIG came in, just waiting on the contracter kit to start welding

Originally Posted by kb58

Don't worry about it - no one can control weight transfer. Yeah springs, shocks,
and bars can be added but the weight transfer always happens.

Thanks Kurt, all can do is try with what I've got and hope for the best. I haven't checked out your site in a while.. its probably time I got my monthly fix of the Kimini project.

[WhiteSol]

I've been quite busy as of late with work so time has been a little short, my spare time has been split between this project and my new daily driver (92 EG w/h23 vtec). Most of the work on this project has been getting in new parts. New this week is the ITR conversion for the front hubs, rotors and calipers. I'm trying out a new crossdrilled and slotted rotor made by a Canadian company. I also found an OEM LSD transmission for the rear engine which will be going in mid May.

I've found somthing useful to do with a pipe bender.. it makes an excellent bearing press for pushing out old bearings.







Compare the ITR caliper to the stock Integra caliper. I hope the extra unsprung mass is worth the stopping performance.