Warning! 1986 injectors

[Wallyr]

my 86 engine is stock,I would like to install a 52 or 58mm throttle body and it was suggested to change injectors to 24lb, first do I need to change them from stock 22lb and second if I change them do I need to change or recalibrate stock maf ?? :bash

 

[surfer93]

Except for TB, is the engine stock?
If it is stock, stock injectors are fine.
Someone with a 86 will have to answer the MAF question.

Unless you are modifying the intake and heads, throwing in more air will do nothing, may give you a little top end, that's all. Stock TB gives the engine plenty of air, have you modified the airbox to let more air in or put a cold air system on?

 

[Hib Halverson]

You'll gain no performance with those two modifcations and, with the big TB, you may actually loose low-end performance and experience degraded driveabilty at low speeds.

 

[gmjunkie]

You'll gain no performance with those two modifcations and, with the big TB, you may actually loose low-end performance and experience degraded driveabilty at low speeds.

 

[Wallyr]

Thanks for info , I will leave it alone
wallyr

 

[Curious George]

In general, when you change the injectors, and they are not the same rating as the stock ones, you need to change the PROM injector constant. This would apply, let say on a stock engine, and all you were doing was an injector swap.

CG