LS4 / F40 swap - fieroguru (Page 46/216)
fieroguru MAR 25, 08:15 PM

quote
Originally posted by Syn:

any updates?



No progress this week.
An 88 formula with 3.4TDC/getrag combo was dropped off with a miss (bad plug wire), so fixed that and now doing a Rodney S10 booster evaluation on this car.
http://www.fiero.nl/forum/F...121747.html#lastpost
After the booster swap, I am planning on weighting this car on the same scales as I weighed my 88 GT Clone with SBC/Getrag and 88 coupe with 4.3/4T60 to expand my 88 engine swap database.

I also added another 88 to the personal fleet this weekend. I call it "4cyl fastback" because that is what it is. Started life as an 88 coupe 4cyl/auto and underwent a GT conversion except for the engine/tranny. This will be my daily driver shortly. I will get this one weighed as well, then eventually swap in an isuzu and reweigh it.


I should be back working on the LS4 engine bay and wiring here shortly. I would like to have this swap running this spring.

[This message has been edited by fieroguru (edited 03-25-2012).]

Jefrysuko MAR 26, 01:33 AM

quote
Originally posted by fieroguru:

I also added another 88 to the personal fleet this weekend.




Good to see you Rollin in a Fiero again there Guru. I saw that car in the mall and thought it looked nice. Hope it does you well as a DD.
dobey APR 17, 09:46 AM
Got it running yet?
fieroguru APR 17, 11:43 AM

quote
Originally posted by dobey:

Got it running yet?



Nope... Probably won't before the move, so I will just slide it into place and then pull it to the new house.
dobey APR 17, 08:33 PM

quote
Originally posted by fieroguru:
Nope... Probably won't before the move, so I will just slide it into place and then pull it to the new house.



Ah. Didn't know you were moving. Congrats (I hope), and hope everything goes smooth with the move.
fieroguru APR 19, 07:59 PM

quote
Originally posted by dobey:


Ah. Didn't know you were moving. Congrats (I hope), and hope everything goes smooth with the move.



It wasn't really planned. Been leasing the current place for the last 3 years and the lease expires on June 30th. We approached the landlord a few weeks ago working to renew it early for another 18 months and were told the house is being sold...

It is difficult to find a rental with the needed room for my automotive/metal fabrication hobby, so we are just going to buy... Sold my last house back in 2006 and been waiting out the housing market for 6 years, it is a pretty good time to buy.
ZombiePenguin MAY 07, 07:04 PM
bump for updates
fieroguru MAY 07, 07:38 PM
Been slacking... selling lots of spare parts in preparation of the move, selling quite a few brake kits, and making some decisions about the LS4/F40.

To get the engine running, I am going to install it with the stock LS4 MAF, LS4 Throttle body, and LS4 Injectors. This will simplify the initial startup tuning as the biggest change would be the Intake, Cam and LS7 manifolds (which is a significant change, but less than chaning the MAF, TB and Injectors at the same time as well). Once I have the car dialed in with those parts, then I can add the Injectors and tweaks the injector constants to dial it back in. Then add the throttle body and tweak. Then add the LS2 MAF and finish dialing it in with the MAF tables. Tuning this thing isn't going to be fun...

Found a house, offer was made and we have a purchase contract. Closing date is June 8th and I have to be fully moved by June 30th. My new garage is 5' narrower than my current one (larger one will be built in a year or two), so I had to figure out where everything goes in the new place. This is the general location, but subject to change:

[This message has been edited by fieroguru (edited 05-07-2012).]

fieroguru MAY 07, 07:50 PM
Here is a start on the adapter plate to bolt the LS4 throttle body to the LS2 intake manifold. It needs to be 3/4" thick to allow the throttle motor on the LS4 throttle body to clear the LS2 intake. It is also offset from center about 1/8" for the needed clearance. This adapter will be shaped on its perimeter to better match the LS2 intake flange vs. keeping it a simple rectangle.



[This message has been edited by fieroguru (edited 05-07-2012).]

dobey MAY 18, 05:04 PM
You're aware that the LS4 injectors don't fit the LS2 intake, right? They're a smaller diameter than the LS2 intake and fuel rail accepts. And the LS4 rail won't fit over the LS2 intake either.